Invalid access to memory - Vcl::Comctrls::TTreeNode::GetTree

<Try to describe precise steps that lead to the problem (where do you click, what keys do you press, what do you see, etc.)>
<If relevant, consider attaching a session log file or a screenshot)>

WinSCP 5.17.1

Error message:
メモリのアクセス違反

スタック トレース:
(002AB173) Vcl::Comctrls::TTreeNode::GetTreeView
(00087D7F) ntdll.dll
(00073221) ntdll.dll.KiUserExceptionDispatcher
(0044B639) Customdriveview::_16446
(0044B639) Customdriveview::_16446
(0044B639) Customdriveview::_16446
(0044B6C8) Customdriveview::TCustomDriveView::IterateSubTree
(0045DDEE) Driveview::TDriveView::ValidateDirectoryEx
(0044B359) Customdriveview::TCustomDriveView::ValidateDirectory
(0025039F) Vcl::Extctrls::TTimer::Timer
(003A4578) System::Classes::_18201
(00043449) USER32.dll
(00023F87) USER32.dll
(000230D9) USER32.dll
(00022EBB) USER32.dll.DispatchMessageW

The problem happens rarely. I cannot reproduce it.

I was reconnecting a Remote Desktop

WinSCP 5.17.2

Error message:
Invalid access to memory.

Stack trace:
(002A4FDB) Vcl::Comctrls::TTreeNode::GetTreeView
(00087D7F) ntdll.dll
(00073221) ntdll.dll.KiUserExceptionDispatcher
(002A4FB8) Vcl::Comctrls::TTreeNode::GetHandle
(00DBA7B7) TCustomUnixDriveView::Change
(002AAC1C) Vcl::Comctrls::TCustomTreeView::CNNotify
(0055157D) Customdriveview::TCustomDriveView::CNNotify
(00DBC76A) TCustomUnixDriveView::Dispatch
(001D5B11) Vcl::Controls::TControl::WndProc
(001DB7AF) Vcl::Controls::TWinControl::WndProc
(002AAF71) Vcl::Comctrls::TCustomTreeView::WndProc
(00DBC5C6) TUnixDriveView::WndProc
(001D5612) Vcl::Controls::TControl::Perform
(001DB99C) Vcl::Controls::_17099
(001DC5A7) Vcl::Controls::TWinControl::WMNotify
(001D5B11) Vcl::Controls::TControl::WndProc
(001DB7AF) Vcl::Controls::TWinControl::WndProc
(001DAD00) Vcl::Controls::TWinControl::MainWndProc
(004B246C) System::Classes::_18201
(00043449) USER32.dll
(00023F87) USER32.dll
(00023B25) USER32.dll
(0002D16D) USER32.dll
(000731DB) ntdll.dll.KiUserCallbackDispatcher
(000233FE) USER32.dll.SendMessageW
(00059831) COMCTL32.DLL
(0001DB25) COMCTL32.DLL
(0001D9FA) COMCTL32.DLL
(00023508) COMCTL32.DLL
(00043449) USER32.dll
(00023F87) USER32.dll
(000234DA) USER32.dll.CallWindowProcW
(001DB922) Vcl::Controls::TWinControl::DefaultHandler
(00DBC76A) TCustomUnixDriveView::Dispatch
(001D5B11) Vcl::Controls::TControl::WndProc
(001DB7AF) Vcl::Controls::TWinControl::WndProc
(002AAF71) Vcl::Comctrls::TCustomTreeView::WndProc
(00DBC5C6) TUnixDriveView::WndProc
(001DAD00) Vcl::Controls::TWinControl::MainWndProc
(004B246C) System::Classes::_18201
(00043449) USER32.dll
(00023F87) USER32.dll
(00023B25) USER32.dll
(0002D16D) USER32.dll
(000731DB) ntdll.dll.KiUserCallbackDispatcher
(000233FE) USER32.dll.SendMessageW
(00182BEF) Winapi::Commctrl::TreeView_SelectItem
(002A5920) Vcl::Comctrls::TTreeNode::SetSelected
(002AA08F) Vcl::Comctrls::TCustomTreeView::SetSelected
(002A92BF) Vcl::Comctrls::TCustomTreeView::CreateWnd
(0054E3E1) Customdriveview::TCustomDriveView::CreateWnd
(00DB90FF) TCustomUnixDriveView::CreateWnd
(00DBC1F2) TUnixDriveView::CreateHandle
(001DF4B4) Vcl::Controls::TWinControl::HandleNeeded
(00551EB0) Customdriveview::TCustomDriveView::CMRecreateWnd
(00DBC76A) TCustomUnixDriveView::Dispatch
(001D5B11) Vcl::Controls::TControl::WndProc
(001DB7AF) Vcl::Controls::TWinControl::WndProc
(002AAF71) Vcl::Comctrls::TCustomTreeView::WndProc
(00DBC5C6) TUnixDriveView::WndProc
(001D5612) Vcl::Controls::TControl::Perform
(001DA8A3) Vcl::Controls::TWinControl::RecreateWnd
(002A98B3) Vcl::Comctrls::TCustomTreeView::CMSysColorChange
(0054EBD2) Customdriveview::TCustomDriveView::CMSysColorChange
(00DBC76A) TCustomUnixDriveView::Dispatch
(001D5B11) Vcl::Controls::TControl::WndProc
(001DB7AF) Vcl::Controls::TWinControl::WndProc
(002AAF71) Vcl::Comctrls::TCustomTreeView::WndProc
(00DBC5C6) TUnixDriveView::WndProc
(001D9B30) Vcl::Controls::TWinControl::Broadcast
(001DE4E6) Vcl::Controls::TWinControl::CMSysColorChange
(001D5B11) Vcl::Controls::TControl::WndProc
(001DB7AF) Vcl::Controls::TWinControl::WndProc
(001D9B30) Vcl::Controls::TWinControl::Broadcast
(001DE4E6) Vcl::Controls::TWinControl::CMSysColorChange
(001D5B11) Vcl::Controls::TControl::WndProc
(001DB7AF) Vcl::Controls::TWinControl::WndProc
(001D9B30) Vcl::Controls::TWinControl::Broadcast
(001DE4E6) Vcl::Controls::TWinControl::CMSysColorChange
(00034E71) TCustomScpExplorerForm::Dispatch
(001D5B11) Vcl::Controls::TControl::WndProc
(001DB7AF) Vcl::Controls::TWinControl::WndProc
(0024D808) Vcl::Forms::TCustomForm::WndProc
(00FE788C) DoFormWindowProc
(00FE4891) Vclcommon::C3005_0
(001D5612) Vcl::Controls::TControl::Perform
(001DC5DD) Vcl::Controls::TWinControl::WMSysColorChange
(00034E71) TCustomScpExplorerForm::Dispatch
(001D5B11) Vcl::Controls::TControl::WndProc
(001DB7AF) Vcl::Controls::TWinControl::WndProc
(0024D808) Vcl::Forms::TCustomForm::WndProc
(00FE788C) DoFormWindowProc
(00FE4891) Vclcommon::C3005_0
(001DAD00) Vcl::Controls::TWinControl::MainWndProc
(004B246C) System::Classes::_18201
(00043449) USER32.dll
(00023F87) USER32.dll
(00023B25) USER32.dll
(0002D16D) USER32.dll
(000731DB) ntdll.dll.KiUserCallbackDispatcher
(00028EFB) USER32.dll.PeekMessageW
(00259129) Vcl::Forms::TApplication::ProcessMessage
(00259287) Vcl::Forms::TApplication::HandleMessage
(0025963B) Vcl::Forms::TApplication::Run
(00129C14) Execute
(0000315D) wWinMain
(0112C06D) __wstartup
(00066B72) ntdll.dll.RtlGetAppContainerNamedObjectPath
(00066B3F) ntdll.dll.RtlGetAppContainerNamedObjectPath

I know how to reproduce the problem or the problem happens frequently enough. I wish to be contacted by the WinSCP team to help resolving the problem.

I was reconnecting a Remote Desktop

WinSCP 5.17.2

Error message:
Invalid access to memory.

Stack trace:
(002A4FDB) Vcl::Comctrls::TTreeNode::GetTreeView
(00087D7F) ntdll.dll
(00073221) ntdll.dll.KiUserExceptionDispatcher
(002A4FB8) Vcl::Comctrls::TTreeNode::GetHandle
(00DBA7B7) TCustomUnixDriveView::Change
(002AAC1C) Vcl::Comctrls::TCustomTreeView::CNNotify
(0055157D) Customdriveview::TCustomDriveView::CNNotify
(00DBC76A) TCustomUnixDriveView::Dispatch
(001D5B11) Vcl::Controls::TControl::WndProc
(001DB7AF) Vcl::Controls::TWinControl::WndProc
(002AAF71) Vcl::Comctrls::TCustomTreeView::WndProc
(00DBC5C6) TUnixDriveView::WndProc
(001D5612) Vcl::Controls::TControl::Perform
(001DB99C) Vcl::Controls::_17099
(001DC5A7) Vcl::Controls::TWinControl::WMNotify
(001D5B11) Vcl::Controls::TControl::WndProc
(001DB7AF) Vcl::Controls::TWinControl::WndProc
(001DAD00) Vcl::Controls::TWinControl::MainWndProc
(004B246C) System::Classes::_18201
(00043449) USER32.dll
(00023F87) USER32.dll
(00023B25) USER32.dll
(0002D16D) USER32.dll
(000731DB) ntdll.dll.KiUserCallbackDispatcher
(000233FE) USER32.dll.SendMessageW
(00059831) COMCTL32.DLL
(0001DB25) COMCTL32.DLL
(0001D9FA) COMCTL32.DLL
(00023508) COMCTL32.DLL
(00043449) USER32.dll
(00023F87) USER32.dll
(000234DA) USER32.dll.CallWindowProcW
(001DB922) Vcl::Controls::TWinControl::DefaultHandler
(00DBC76A) TCustomUnixDriveView::Dispatch
(001D5B11) Vcl::Controls::TControl::WndProc
(001DB7AF) Vcl::Controls::TWinControl::WndProc
(002AAF71) Vcl::Comctrls::TCustomTreeView::WndProc
(00DBC5C6) TUnixDriveView::WndProc
(001DAD00) Vcl::Controls::TWinControl::MainWndProc
(004B246C) System::Classes::_18201
(00043449) USER32.dll
(00023F87) USER32.dll
(00023B25) USER32.dll
(0002D16D) USER32.dll
(000731DB) ntdll.dll.KiUserCallbackDispatcher
(000233FE) USER32.dll.SendMessageW
(00182BEF) Winapi::Commctrl::TreeView_SelectItem
(002A5920) Vcl::Comctrls::TTreeNode::SetSelected
(002AA08F) Vcl::Comctrls::TCustomTreeView::SetSelected
(002A92BF) Vcl::Comctrls::TCustomTreeView::CreateWnd
(0054E3E1) Customdriveview::TCustomDriveView::CreateWnd
(00DB90FF) TCustomUnixDriveView::CreateWnd
(00DBC1F2) TUnixDriveView::CreateHandle
(001DF4B4) Vcl::Controls::TWinControl::HandleNeeded
(00551EB0) Customdriveview::TCustomDriveView::CMRecreateWnd
(00DBC76A) TCustomUnixDriveView::Dispatch
(001D5B11) Vcl::Controls::TControl::WndProc
(001DB7AF) Vcl::Controls::TWinControl::WndProc
(002AAF71) Vcl::Comctrls::TCustomTreeView::WndProc
(00DBC5C6) TUnixDriveView::WndProc
(001D5612) Vcl::Controls::TControl::Perform
(001DA8A3) Vcl::Controls::TWinControl::RecreateWnd
(002A98B3) Vcl::Comctrls::TCustomTreeView::CMSysColorChange
(0054EBD2) Customdriveview::TCustomDriveView::CMSysColorChange
(00DBC76A) TCustomUnixDriveView::Dispatch
(001D5B11) Vcl::Controls::TControl::WndProc
(001DB7AF) Vcl::Controls::TWinControl::WndProc
(002AAF71) Vcl::Comctrls::TCustomTreeView::WndProc
(00DBC5C6) TUnixDriveView::WndProc
(001D9B30) Vcl::Controls::TWinControl::Broadcast
(001DE4E6) Vcl::Controls::TWinControl::CMSysColorChange
(001D5B11) Vcl::Controls::TControl::WndProc
(001DB7AF) Vcl::Controls::TWinControl::WndProc
(001D9B30) Vcl::Controls::TWinControl::Broadcast
(001DE4E6) Vcl::Controls::TWinControl::CMSysColorChange
(001D5B11) Vcl::Controls::TControl::WndProc
(001DB7AF) Vcl::Controls::TWinControl::WndProc
(001D9B30) Vcl::Controls::TWinControl::Broadcast
(001DE4E6) Vcl::Controls::TWinControl::CMSysColorChange
(00034E71) TCustomScpExplorerForm::Dispatch
(001D5B11) Vcl::Controls::TControl::WndProc
(001DB7AF) Vcl::Controls::TWinControl::WndProc
(0024D808) Vcl::Forms::TCustomForm::WndProc
(00FE788C) DoFormWindowProc
(00FE4891) Vclcommon::C3005_0
(001D5612) Vcl::Controls::TControl::Perform
(001DC5DD) Vcl::Controls::TWinControl::WMSysColorChange
(00034E71) TCustomScpExplorerForm::Dispatch
(001D5B11) Vcl::Controls::TControl::WndProc
(001DB7AF) Vcl::Controls::TWinControl::WndProc
(0024D808) Vcl::Forms::TCustomForm::WndProc
(00FE788C) DoFormWindowProc
(00FE4891) Vclcommon::C3005_0
(001DAD00) Vcl::Controls::TWinControl::MainWndProc
(004B246C) System::Classes::_18201
(00043449) USER32.dll
(00023F87) USER32.dll
(00023B25) USER32.dll
(0002D16D) USER32.dll
(000731DB) ntdll.dll.KiUserCallbackDispatcher
(00028EFB) USER32.dll.PeekMessageW
(00259129) Vcl::Forms::TApplication::ProcessMessage
(00259287) Vcl::Forms::TApplication::HandleMessage
(0025963B) Vcl::Forms::TApplication::Run
(00129C14) Execute
(0000315D) wWinMain
(0112C06D) __wstartup
(00066B72) ntdll.dll.RtlGetAppContainerNamedObjectPath
(00066B3F) ntdll.dll.RtlGetAppContainerNamedObjectPath

I know how to reproduce the problem or the problem happens frequently enough. I wish to be contacted by the WinSCP team to help resolving the problem.

<Try to describe precise steps that lead to the problem (where do you click, what keys do you press, what do you see, etc.)>
<If relevant, consider attaching a session log file or a screenshot)>

WinSCP 5.17.2

Error message:
Invalid access to memory.

Stack trace:
(002AB173) Vcl::Comctrls::TTreeNode::GetTreeView
(00087D7F) ntdll.dll
(00073221) ntdll.dll.KiUserExceptionDispatcher
(002AF9AA) Vcl::Comctrls::TCustomTreeView::CNNotify
(0044AEB1) Customdriveview::TCustomDriveView::CNNotify
(00279915) Vcl::Controls::TWinControl::WndProc
(002AFC66) Vcl::Comctrls::TCustomTreeView::WndProc
(00279A7B) Vcl::Controls::_17076
(00279915) Vcl::Controls::TWinControl::WndProc
(00278F5C) Vcl::Controls::TWinControl::MainWndProc
(003A4578) System::Classes::_18201
(00043449) USER32.dll
(00023F87) USER32.dll
(00023B25) USER32.dll
(0002D16D) USER32.dll
(000731DB) ntdll.dll.KiUserCallbackDispatcher
(000233FE) USER32.dll.SendMessageW
(00059831) COMCTL32.DLL
(0001DB25) COMCTL32.DLL
(0001D9FA) COMCTL32.DLL
(00023508) COMCTL32.DLL
(00043449) USER32.dll
(00023F87) USER32.dll
(000234DA) USER32.dll.CallWindowProcW
(00279A26) Vcl::Controls::TWinControl::DefaultHandler
(00279915) Vcl::Controls::TWinControl::WndProc
(002AFC66) Vcl::Comctrls::TCustomTreeView::WndProc
(003A4578) System::Classes::_18201
(00043449) USER32.dll
(00023F87) USER32.dll
(00023B25) USER32.dll
(0002D16D) USER32.dll
(000731DB) ntdll.dll.KiUserCallbackDispatcher
(000233FE) USER32.dll.SendMessageW
(00361903) Winapi::Commctrl::TreeView_SelectItem
(00449E1D) Customdriveview::TCustomDriveView::CreateWnd
(00279915) Vcl::Controls::TWinControl::WndProc
(002AFC66) Vcl::Comctrls::TCustomTreeView::WndProc
(00278B66) Vcl::Controls::TWinControl::RecreateWnd
(00279915) Vcl::Controls::TWinControl::WndProc

The problem happens rarely. I cannot reproduce it.

<Try to describe precise steps that lead to the problem (where do you click, what keys do you press, what do you see, etc.)>
<If relevant, consider attaching a session log file or a screenshot)>

WinSCP 5.17.2

Error message:
Érvénytelen memóriaelérés

Veremkivonat:
(002AB173) Vcl::Comctrls::TTreeNode::GetTreeView
(00081D0F) ntdll.dll
(0006F88A) ntdll.dll.KiUserExceptionDispatcher
(002AF9AA) Vcl::Comctrls::TCustomTreeView::CNNotify
(0044AEB1) Customdriveview::TCustomDriveView::CNNotify
(00279915) Vcl::Controls::TWinControl::WndProc
(002AFC66) Vcl::Comctrls::TCustomTreeView::WndProc
(00279A7B) Vcl::Controls::_17076
(00279915) Vcl::Controls::TWinControl::WndProc
(00278F5C) Vcl::Controls::TWinControl::MainWndProc
(003A4578) System::Classes::_18201
(0002C2B1) USER32.dll
(0000D895) USER32.dll
(0000D4CB) USER32.dll
(00017B17) USER32.dll
(0006F864) ntdll.dll.KiUserCallbackDispatcher
(0000FC0B) USER32.dll.SendMessageW
(000638A8) COMCTL32.DLL
(0002279B) COMCTL32.DLL
(00022606) COMCTL32.DLL
(00020DB1) COMCTL32.DLL
(0002C2B1) USER32.dll
(0000D895) USER32.dll
(0000CF22) USER32.dll.CallWindowProcW
(00279A26) Vcl::Controls::TWinControl::DefaultHandler
(00279915) Vcl::Controls::TWinControl::WndProc
(002AFC66) Vcl::Comctrls::TCustomTreeView::WndProc
(003A4578) System::Classes::_18201
(0002C2B1) USER32.dll
(0000D895) USER32.dll
(0000D4CB) USER32.dll
(00017B17) USER32.dll
(0006F864) ntdll.dll.KiUserCallbackDispatcher
(0000FC0B) USER32.dll.SendMessageW
(00361903) Winapi::Commctrl::TreeView_SelectItem
(00449E1D) Customdriveview::TCustomDriveView::CreateWnd
(00279915) Vcl::Controls::TWinControl::WndProc
%

The problem happens rarely. I cannot reproduce it.

<Try to describe precise steps that lead to the problem (where do you click, what keys do you press, what do you see, etc.)>
<If relevant, consider attaching a session log file or a screenshot)>

WinSCP 5.17.1

Error message:
Invalid access to memory.

Stack trace:
(002AB173) Vcl::Comctrls::TTreeNode::GetTreeView
(00087D6F) ntdll.dll
(00073211) ntdll.dll.KiUserExceptionDispatcher
(002AF9AA) Vcl::Comctrls::TCustomTreeView::CNNotify
(0044AEB1) Customdriveview::TCustomDriveView::CNNotify
(00279915) Vcl::Controls::TWinControl::WndProc
(002AFC66) Vcl::Comctrls::TCustomTreeView::WndProc
(00279A7B) Vcl::Controls::_17076
(00279915) Vcl::Controls::TWinControl::WndProc
(00278F5C) Vcl::Controls::TWinControl::MainWndProc
(003A4578) System::Classes::_18201
(00043389) USER32.dll
(00023F87) USER32.dll
(00023B25) USER32.dll
(0002D0DD) USER32.dll
(000731CB) ntdll.dll.KiUserCallbackDispatcher
(000233FE) USER32.dll.SendMessageW
(00059491) COMCTL32.DLL
(0001DB15) COMCTL32.DLL
(0001D9EA) COMCTL32.DLL
(000234F8) COMCTL32.DLL
(00043389) USER32.dll
(00023F87) USER32.dll
(000234DA) USER32.dll.CallWindowProcW
(00279A26) Vcl::Controls::TWinControl::DefaultHandler
(00279915) Vcl::Controls::TWinControl::WndProc
(002AFC66) Vcl::Comctrls::TCustomTreeView::WndProc
(003A4578) System::Classes::_18201
(00043389) USER32.dll
(00023F87) USER32.dll
(00023B25) USER32.dll
(0002D0DD) USER32.dll
(000731CB) ntdll.dll.KiUserCallbackDispatcher
(000233FE) USER32.dll.SendMessageW
(00361903) Winapi::Commctrl::TreeView_SelectItem
(00449E1D) Customdriveview::TCustomDriveView::CreateWnd
(00279915) Vcl::Controls::TWinControl::WndProc
(002AFC66) Vcl::Comctrls::TCustomTreeView::WndProc
(00278B66) Vcl::Controls::TWinControl::RecreateWnd
(00279915) Vcl::Controls::TWinControl::WndProc

The problem happens rarely. I cannot reproduce it.

Logged back in to remote desktop and the error was there when I arrived.

WinSCP 5.17.2

Error message:
Invalid access to memory.

Stack trace:
(002AB173) Vcl::Comctrls::TTreeNode::GetTreeView
(00087D7F) ntdll.dll
(00073221) ntdll.dll.KiUserExceptionDispatcher
(002AF9AA) Vcl::Comctrls::TCustomTreeView::CNNotify
(0044AEB1) Customdriveview::TCustomDriveView::CNNotify
(00279915) Vcl::Controls::TWinControl::WndProc
(002AFC66) Vcl::Comctrls::TCustomTreeView::WndProc
(00279A7B) Vcl::Controls::_17076
(00279915) Vcl::Controls::TWinControl::WndProc
(00278F5C) Vcl::Controls::TWinControl::MainWndProc
(003A4578) System::Classes::_18201
(00043389) USER32.dll
(00023F87) USER32.dll
(00023B25) USER32.dll
(0002D0DD) USER32.dll
(000731DB) ntdll.dll.KiUserCallbackDispatcher
(000233FE) USER32.dll.SendMessageW
(00059831) COMCTL32.DLL
(0001DB25) COMCTL32.DLL
(0001D9FA) COMCTL32.DLL
(00023508) COMCTL32.DLL
(00043389) USER32.dll
(00023F87) USER32.dll
(000234DA) USER32.dll.CallWindowProcW
(00279A26) Vcl::Controls::TWinControl::DefaultHandler
(00279915) Vcl::Controls::TWinControl::WndProc
(002AFC66) Vcl::Comctrls::TCustomTreeView::WndProc
(003A4578) System::Classes::_18201
(00043389) USER32.dll
(00023F87) USER32.dll
(00023B25) USER32.dll
(0002D0DD) USER32.dll
(000731DB) ntdll.dll.KiUserCallbackDispatcher
(000233FE) USER32.dll.SendMessageW
(00361903) Winapi::Commctrl::TreeView_SelectItem
(00449E1D) Customdriveview::TCustomDriveView::CreateWnd
(00279915) Vcl::Controls::TWinControl::WndProc
(002AFC66) Vcl::Comctrls::TCustomTreeView::WndProc
(00278B66) Vcl::Controls::TWinControl::RecreateWnd
(00279915) Vcl::Controls::TWinControl::WndProc

The problem happens rarely. I cannot reproduce it.

<Try to describe precise steps that lead to the problem (where do you click, what keys do you press, what do you see, etc.)>
<If relevant, consider attaching a session log file or a screenshot)>

WinSCP 5.17.1

Error message:
Acceso a memoria no válido

Traza de la pila:
(002AB173) Vcl::Comctrls::TTreeNode::GetTreeView
(00087D7F) ntdll.dll
(00073221) ntdll.dll.KiUserExceptionDispatcher
(0044B639) Customdriveview::_16446
(0044B639) Customdriveview::_16446
(0044B639) Customdriveview::_16446
(0044B639) Customdriveview::_16446
(0044B6C8) Customdriveview::TCustomDriveView::IterateSubTree
(0045DDEE) Driveview::TDriveView::ValidateDirectoryEx
(0044B359) Customdriveview::TCustomDriveView::ValidateDirectory
(0025039F) Vcl::Extctrls::TTimer::Timer
(003A4578) System::Classes::_18201
(00043449) USER32.dll
(00023F87) USER32.dll
(000230D9) USER32.dll
(00022EBB) USER32.dll.DispatchMessageW

The problem happens rarely. I cannot reproduce it.

<Try to describe precise steps that lead to the problem (where do you click, what keys do you press, what do you see, etc.)>
<If relevant, consider attaching a session log file or a screenshot)>

WinSCP 5.17.2

Error message:
Invalid access to memory.

Stack trace:
(002AB173) Vcl::Comctrls::TTreeNode::GetTreeView
(0008403F) ntdll.dll
(00071941) ntdll.dll.KiUserExceptionDispatcher
(002AF9AA) Vcl::Comctrls::TCustomTreeView::CNNotify
(0044AEB1) Customdriveview::TCustomDriveView::CNNotify
(00279915) Vcl::Controls::TWinControl::WndProc
(002AFC66) Vcl::Comctrls::TCustomTreeView::WndProc
(00279A7B) Vcl::Controls::_17076
(00279915) Vcl::Controls::TWinControl::WndProc
(00278F5C) Vcl::Controls::TWinControl::MainWndProc
(003A4578) System::Classes::_18201
(00044E39) USER32.dll
(000359D7) USER32.dll
(00035575) USER32.dll
(000422BD) USER32.dll
(000718FB) ntdll.dll.KiUserCallbackDispatcher
(00034E4E) USER32.dll.SendMessageW
(00054EE1) COMCTL32.DLL
(0002493E) COMCTL32.DLL
(00024813) COMCTL32.DLL
(00022844) COMCTL32.DLL
(00044E39) USER32.dll
(000359D7) USER32.dll
(00034F2A) USER32.dll.CallWindowProcW
(00279A26) Vcl::Controls::TWinControl::DefaultHandler
(00279915) Vcl::Controls::TWinControl::WndProc
(002AFC66) Vcl::Comctrls::TCustomTreeView::WndProc
(003A4578) System::Classes::_18201
(00044E39) USER32.dll
(000359D7) USER32.dll
(00035575) USER32.dll
(000422BD) USER32.dll
(000718FB) ntdll.dll.KiUserCallbackDispatcher
(00034E4E) USER32.dll.SendMessageW
(00361903) Winapi::Commctrl::TreeView_SelectItem
(00449E1D) Customdriveview::TCustomDriveView::CreateWnd
(00279915) Vcl::Controls::TWinControl::WndProc
(002AFC66) Vcl::Comctrls::TCustomTreeView::WndProc
(00278B66) Vcl::Controls::TWinControl::RecreateWnd
(00279915) Vcl::Controls::TWinControl::WndProc

The problem happens rarely. I cannot reproduce it.

<Try to describe precise steps that lead to the problem (where do you click, what keys do you press, what do you see, etc.)>
<If relevant, consider attaching a session log file or a screenshot)>

WinSCP 5.17.2

Error message:
Invalid access to memory.

Stack trace:
(002AB173) Vcl::Comctrls::TTreeNode::GetTreeView
(00087D7F) ntdll.dll
(00073221) ntdll.dll.KiUserExceptionDispatcher
(002AF9AA) Vcl::Comctrls::TCustomTreeView::CNNotify
(0044AEB1) Customdriveview::TCustomDriveView::CNNotify
(00279915) Vcl::Controls::TWinControl::WndProc
(002AFC66) Vcl::Comctrls::TCustomTreeView::WndProc
(00279A7B) Vcl::Controls::_17076
(00279915) Vcl::Controls::TWinControl::WndProc
(00278F5C) Vcl::Controls::TWinControl::MainWndProc
(003A4578) System::Classes::_18201
(00043449) USER32.dll
(00023F87) USER32.dll
(00023B25) USER32.dll
(0002D16D) USER32.dll
(000731DB) ntdll.dll.KiUserCallbackDispatcher
(000233FE) USER32.dll.SendMessageW
(00059831) COMCTL32.dll
(0001DB25) COMCTL32.dll
(0001D9FA) COMCTL32.dll
(00023508) COMCTL32.dll
(00043449) USER32.dll
(00023F87) USER32.dll
(000234DA) USER32.dll.CallWindowProcW
(00279A26) Vcl::Controls::TWinControl::DefaultHandler
(00279915) Vcl::Controls::TWinControl::WndProc
(002AFC66) Vcl::Comctrls::TCustomTreeView::WndProc
(003A4578) System::Classes::_18201
(00043449) USER32.dll
(00023F87) USER32.dll
(00023B25) USER32.dll
(0002D16D) USER32.dll
(000731DB) ntdll.dll.KiUserCallbackDispatcher
(000233FE) USER32.dll.SendMessageW
(00361903) Winapi::Commctrl::TreeView_SelectItem
(00449E1D) Customdriveview::TCustomDriveView::CreateWnd
(00279915) Vcl::Controls::TWinControl::WndProc
(002AFC66) Vcl::Comctrls::TCustomTreeView::WndProc
(00278B66) Vcl::Controls::TWinControl::RecreateWnd
(00279915) Vcl::Controls::TWinControl::WndProc

The problem happens rarely. I cannot reproduce it.

<Try to describe precise steps that lead to the problem (where do you click, what keys do you press, what do you see, etc.)>
<If relevant, consider attaching a session log file or a screenshot)>

WinSCP 5.17.2

Error message:
Invalid access to memory.

Stack trace:
(002AB173) Vcl::Comctrls::TTreeNode::GetTreeView
(00087D7F) ntdll.dll
(00073221) ntdll.dll.KiUserExceptionDispatcher
(002AF9AA) Vcl::Comctrls::TCustomTreeView::CNNotify
(0044AEB1) Customdriveview::TCustomDriveView::CNNotify
(00279915) Vcl::Controls::TWinControl::WndProc
(002AFC66) Vcl::Comctrls::TCustomTreeView::WndProc
(00279A7B) Vcl::Controls::_17076
(00279915) Vcl::Controls::TWinControl::WndProc
(00278F5C) Vcl::Controls::TWinControl::MainWndProc
(003A4578) System::Classes::_18201
(00043449) USER32.dll
(00023F87) USER32.dll
(00023B25) USER32.dll
(0002D16D) USER32.dll
(000731DB) ntdll.dll.KiUserCallbackDispatcher
(000233FE) USER32.dll.SendMessageW
(00059831) COMCTL32.DLL
(0001DB25) COMCTL32.DLL
(0001D9FA) COMCTL32.DLL
(00023508) COMCTL32.DLL
(00043449) USER32.dll
(00023F87) USER32.dll
(000234DA) USER32.dll.CallWindowProcW
(00279A26) Vcl::Controls::TWinControl::DefaultHandler
(00279915) Vcl::Controls::TWinControl::WndProc
(002AFC66) Vcl::Comctrls::TCustomTreeView::WndProc
(003A4578) System::Classes::_18201
(00043449) USER32.dll
(00023F87) USER32.dll
(00023B25) USER32.dll
(0002D16D) USER32.dll
(000731DB) ntdll.dll.KiUserCallbackDispatcher
(000233FE) USER32.dll.SendMessageW
(00361903) Winapi::Commctrl::TreeView_SelectItem
(00449E1D) Customdriveview::TCustomDriveView::CreateWnd
(00279915) Vcl::Controls::TWinControl::WndProc
(002AFC66) Vcl::Comctrls::TCustomTreeView::WndProc
(00278B66) Vcl::Controls::TWinControl::RecreateWnd
(00279915) Vcl::Controls::TWinControl::WndProc

The problem happens rarely. I cannot reproduce it.

I was logged in to a remote server, left the connection active overnight, and woke up to this message.

WinSCP 5.17.1

Error message:
Invalid access to memory.

Stack trace:
(002AB173) Vcl::Comctrls::TTreeNode::GetTreeView
(0007E19F) ntdll.dll
(0006BD81) ntdll.dll.KiUserExceptionDispatcher
(002AF9AA) Vcl::Comctrls::TCustomTreeView::CNNotify
(0044AEB1) Customdriveview::TCustomDriveView::CNNotify
(00279915) Vcl::Controls::TWinControl::WndProc
(002AFC66) Vcl::Comctrls::TCustomTreeView::WndProc
(00279A7B) Vcl::Controls::_17076
(00279915) Vcl::Controls::TWinControl::WndProc
(00278F5C) Vcl::Controls::TWinControl::MainWndProc
(003A4578) System::Classes::_18201
(0003AE59) USER32.dll
(000373D5) USER32.dll
(00036F75) USER32.dll
(000396C7) USER32.dll
(0006BD3B) ntdll.dll.KiUserCallbackDispatcher
(0001AFA2) USER32.dll.SendMessageW
(0003947D) COMCTL32.dll
(000B83F5) COMCTL32.dll
(000B8024) COMCTL32.dll
(000B9AF9) COMCTL32.dll
(0003AE59) USER32.dll
(000373D5) USER32.dll
(00016E48) USER32.dll.CallWindowProcW
(00279A26) Vcl::Controls::TWinControl::DefaultHandler
(00279915) Vcl::Controls::TWinControl::WndProc
(002AFC66) Vcl::Comctrls::TCustomTreeView::WndProc
(003A4578) System::Classes::_18201
(0003AE59) USER32.dll
(000373D5) USER32.dll
(00036F75) USER32.dll
(000396C7) USER32.dll
(0006BD3B) ntdll.dll.KiUserCallbackDispatcher
(0001AFA2) USER32.dll.SendMessageW
(00361903) Winapi::Commctrl::TreeView_SelectItem
(00449E1D) Customdriveview::TCustomDriveView::CreateWnd
(00279915) Vcl::Controls::TWinControl::WndProc
(002AFC66) Vcl::Comctrls::TCustomTreeView::WndProc
(00278B66) Vcl::Controls::TWinControl::RecreateWnd
(00279915) Vcl::Controls::TWinControl::WndProc

The problem happens rarely. I cannot reproduce it.

<Try to describe precise steps that lead to the problem (where do you click, what keys do you press, what do you see, etc.)>
<If relevant, consider attaching a session log file or a screenshot)>

WinSCP 5.17.2

Error message:
Ошибка доступа к памяти.

Трассировка стека:
(002AB173) Vcl::Comctrls::TTreeNode::GetTreeView
(00087D7F) ntdll.dll
(00073221) ntdll.dll.KiUserExceptionDispatcher
(002AF9AA) Vcl::Comctrls::TCustomTreeView::CNNotify
(0044AEB1) Customdriveview::TCustomDriveView::CNNotify
(00279915) Vcl::Controls::TWinControl::WndProc
(002AFC66) Vcl::Comctrls::TCustomTreeView::WndProc
(00279A7B) Vcl::Controls::_17076
(00279915) Vcl::Controls::TWinControl::WndProc
(00278F5C) Vcl::Controls::TWinControl::MainWndProc
(003A4578) System::Classes::_18201
(00043449) USER32.dll
(00023F87) USER32.dll
(00023B25) USER32.dll
(0002D16D) USER32.dll
(000731DB) ntdll.dll.KiUserCallbackDispatcher
(000233FE) USER32.dll.SendMessageW
(00059831) COMCTL32.DLL
(0001DB25) COMCTL32.DLL
(0001D9FA) COMCTL32.DLL
(00023508) COMCTL32.DLL
(00043449) USER32.dll
(00023F87) USER32.dll
(000234DA) USER32.dll.CallWindowProcW
(00279A26) Vcl::Controls::TWinControl::DefaultHandler
(00279915) Vcl::Controls::TWinControl::WndProc
(002AFC66) Vcl::Comctrls::TCustomTreeView::WndProc
(003A4578) System::Classes::_18201
(00043449) USER32.dll
(00023F87) USER32.dll
(00023B25) USER32.dll
(0002D16D) USER32.dll
(000731DB) ntdll.dll.KiUserCallbackDispatcher
(000233FE) USER32.dll.SendMessageW
(00361903) Winapi::Commctrl::TreeView_SelectItem
(00449E1D) Customdriveview::TCustomDriveView::CreateWnd
(00279915) Vcl::Controls::TWinControl::WndProc
(002AFC66) Vcl::Comctrls::TCustomTreeView::WndProc
(00278B66) Vcl::Controls::TWinControl::RecreateWnd
(00279915) Vcl::Controls::TWinControl::WndProc

The problem happens rarely. I cannot reproduce it.

This issue is tracked here:
https://winscp.net/tracker/1829

I find this error whenever I leave WinSCP open for a long time (1-2 days) on my work computer and connect to my work computer from home via Windows Remote Desktop.

WinSCP 5.17.3

Error message:
Invalid access to memory.

Stack trace:
(002AB3DB) Vcl::Comctrls::TTreeNode::GetTreeView
(0007E19F) ntdll.dll
(0006BD91) ntdll.dll.KiUserExceptionDispatcher
(0044B909) Customdriveview::_16446
(0044B998) Customdriveview::TCustomDriveView::IterateSubTree
(0045E0BE) Driveview::TDriveView::ValidateDirectoryEx
(0044B629) Customdriveview::TCustomDriveView::ValidateDirectory
(00250607) Vcl::Extctrls::TTimer::Timer
(003A47E0) System::Classes::_18201
(0003A869) USER32.dll
(00036BB5) USER32.dll
(00036469) USER32.dll
(0003624B) USER32.dll.DispatchMessageW

I know how to reproduce the problem or the problem happens frequently enough. I wish to be contacted by the WinSCP team to help resolving the problem.

I wasn't in the room...I came back in, screen save had started, unlocked screen and found this..
<If relevant, consider attaching a session log file or a screenshot)>

WinSCP 5.17.3

Error message:
Invalid access to memory.

Stack trace:
(002AB3DB) Vcl::Comctrls::TTreeNode::GetTreeView
(00087D7F) ntdll.dll
(00073221) ntdll.dll.KiUserExceptionDispatcher
(0044B909) Customdriveview::_16446
(0044B909) Customdriveview::_16446
(0044B909) Customdriveview::_16446
(0044B998) Customdriveview::TCustomDriveView::IterateSubTree
(0045E0BE) Driveview::TDriveView::ValidateDirectoryEx
(0044B629) Customdriveview::TCustomDriveView::ValidateDirectory
(00250607) Vcl::Extctrls::TTimer::Timer
(003A47E0) System::Classes::_18201
(00043449) USER32.dll
(00023F87) USER32.dll
(000230D9) USER32.dll
(00022EBB) USER32.dll.DispatchMessageW

The problem happens rarely. I cannot reproduce it.

d.saxena@... wrote:

I find this error whenever I leave WinSCP open for a long time (1-2 days) on my work computer and connect to my work computer from home via Windows Remote Desktop.

WinSCP 5.17.3

Error message:
Invalid access to memory.

Stack trace:
(002AB3DB) Vcl::Comctrls::TTreeNode::GetTreeView
(0007E19F) ntdll.dll
(0006BD91) ntdll.dll.KiUserExceptionDispatcher
(0044B909) Customdriveview::_16446
(0044B998) Customdriveview::TCustomDriveView::IterateSubTree
(0045E0BE) Driveview::TDriveView::ValidateDirectoryEx
(0044B629) Customdriveview::TCustomDriveView::ValidateDirectory
(00250607) Vcl::Extctrls::TTimer::Timer
(003A47E0) System::Classes::_18201
(0003A869) USER32.dll
...

I know how to reproduce the problem or the problem happens frequently enough. I wish to be contacted by the WinSCP team to help resolving the problem.

Thanks for your report.
I have sent you an email with a debug version of WinSCP to the address you have used to register on this forum.

After the Update the Error occurs while doing nothing. The WinSCP Window is open and waiting for File-Transfer to a Linux-Server. Actually i am testing a small Python Script.

WinSCP 5.17.3

Error message:
Zugriffsverletzung - ungültiger Zugriff auf den Speicher.

Stack trace:
(002AB3DB) Vcl::Comctrls::TTreeNode::GetTreeView
(00087D7F) ntdll.dll
(00073221) ntdll.dll.KiUserExceptionDispatcher
(0045DFED) Driveview::TDriveView::ValidateDirectoryEx
(0044B629) Customdriveview::TCustomDriveView::ValidateDirectory
(00250607) Vcl::Extctrls::TTimer::Timer
(003A47E0) System::Classes::_18201
(00043449) USER32.dll
(00023F87) USER32.dll
(000230D9) USER32.dll
(00022EBB) USER32.dll.DispatchMessageW

The problem happens rarely. I cannot reproduce it.

<Try to describe precise steps that lead to the problem (where do you click, what keys do you press, what do you see, etc.)>
<If relevant, consider attaching a session log file or a screenshot)>

WinSCP 5.17.3

Error message:
Invalid access to memory.

Stack trace:
(002AB3DB) Vcl::Comctrls::TTreeNode::GetTreeView
(00087D7F) ntdll.dll
(00073221) ntdll.dll.KiUserExceptionDispatcher
(0044B998) Customdriveview::TCustomDriveView::IterateSubTree
(0045E0BE) Driveview::TDriveView::ValidateDirectoryEx
(0044B629) Customdriveview::TCustomDriveView::ValidateDirectory
(00250607) Vcl::Extctrls::TTimer::Timer
(003A47E0) System::Classes::_18201
(00043449) USER32.dll
(00023F87) USER32.dll
(000230D9) USER32.dll
(00022EBB) USER32.dll.DispatchMessageW

The problem happens rarely. I cannot reproduce it.

<Try to describe precise steps that lead to the problem (where do you click, what keys do you press, what do you see, etc.)>
<If relevant, consider attaching a session log file or a screenshot)>

WinSCP 5.17.3

Error message:
Invalid access to memory.

Stack trace:
(002AB3DB) Vcl::Comctrls::TTreeNode::GetTreeView
(00087D7F) ntdll.dll
(00073221) ntdll.dll.KiUserExceptionDispatcher
(0045C59B) Driveview::TDriveView::RefreshRootNodes
(0045A91F) Driveview::TDriveView::InternalWndProc
(003A47E0) System::Classes::_18201
(00043449) USER32.dll
(00023F87) USER32.dll
(000230D9) USER32.dll
(00022EBB) USER32.dll.DispatchMessageW

The problem happens rarely. I cannot reproduce it.

<Try to describe precise steps that lead to the problem (where do you click, what keys do you press, what do you see, etc.)>
<If relevant, consider attaching a session log file or a screenshot)>

WinSCP 5.17.3

Error message:
Invalid access to memory.

Stack trace:
(002AB3DB) Vcl::Comctrls::TTreeNode::GetTreeView
(0007E1AF) ntdll.dll
(0006BD91) ntdll.dll.KiUserExceptionDispatcher
(0044B909) Customdriveview::_16446
(0044B998) Customdriveview::TCustomDriveView::IterateSubTree
(0045E0BE) Driveview::TDriveView::ValidateDirectoryEx
(0044B629) Customdriveview::TCustomDriveView::ValidateDirectory
(00250607) Vcl::Extctrls::TTimer::Timer
(003A47E0) System::Classes::_18201
(0003AAF9) USER32.dll
(00036E75) USER32.dll
(00036729) USER32.dll
(0003650B) USER32.dll.DispatchMessageW

The problem happens rarely. I cannot reproduce it.

<Try to describe precise steps that lead to the problem (where do you click, what keys do you press, what do you see, etc.)>
<If relevant, consider attaching a session log file or a screenshot)>

WinSCP 5.17.3

Error message:
Invalid access to memory.

Stack trace:
(002AB3DB) Vcl::Comctrls::TTreeNode::GetTreeView
(0008403F) ntdll.dll
(00071941) ntdll.dll.KiUserExceptionDispatcher
(0044B909) Customdriveview::_16446
(0044B998) Customdriveview::TCustomDriveView::IterateSubTree
(0045E0BE) Driveview::TDriveView::ValidateDirectoryEx
(0044B629) Customdriveview::TCustomDriveView::ValidateDirectory
(00250607) Vcl::Extctrls::TTimer::Timer
(003A47E0) System::Classes::_18201
(00044E39) USER32.dll
(000359D7) USER32.dll
(00034B16) USER32.dll
(000348EB) USER32.dll.DispatchMessageW

This happened while I was not at my CPU, but WinSCP was running so I don't really know what happened. Sorry if it isn't helpful.

The problem happens rarely. I cannot reproduce it.

I think this happens some time between my remote desktop session disconnecting and me reconnecting to it, but I can't be sure. In any case, winscp is never in focus when this happens.

WinSCP 5.17.3

Error message:
Invalid access to memory.

Stack trace:
(002AB3DB) Vcl::Comctrls::TTreeNode::GetTreeView
(00087D7F) ntdll.dll
(00073221) ntdll.dll.KiUserExceptionDispatcher
(0044B909) Customdriveview::_16446
(0044B909) Customdriveview::_16446
(0044B998) Customdriveview::TCustomDriveView::IterateSubTree
(0045E0BE) Driveview::TDriveView::ValidateDirectoryEx
(0044B629) Customdriveview::TCustomDriveView::ValidateDirectory
(00250607) Vcl::Extctrls::TTimer::Timer
(003A47E0) System::Classes::_18201
(00043389) USER32.dll
(00023F87) USER32.dll
(000230D9) USER32.dll
(00022EBB) USER32.dll.DispatchMessageW

The problem happens rarely. I cannot reproduce it.

<Try to describe precise steps that lead to the problem (where do you click, what keys do you press, what do you see, etc.)>
<If relevant, consider attaching a session log file or a screenshot)>

WinSCP 5.17.3

Error message:
Acesso inválido à memória

Rastreamento de pilha:
(002AB3DB) Vcl::Comctrls::TTreeNode::GetTreeView
(0008421F) ntdll.dll
(00071B21) ntdll.dll.KiUserExceptionDispatcher
(0044B998) Customdriveview::TCustomDriveView::IterateSubTree
(0045E0BE) Driveview::TDriveView::ValidateDirectoryEx
(0044B629) Customdriveview::TCustomDriveView::ValidateDirectory
(00250607) Vcl::Extctrls::TTimer::Timer
(003A47E0) System::Classes::_18201
(00044CA9) USER32.dll
(000357B7) USER32.dll
(000348F6) USER32.dll
(000346CB) USER32.dll.DispatchMessageW

The problem happens rarely. I cannot reproduce it.

<Try to describe precise steps that lead to the problem (where do you click, what keys do you press, what do you see, etc.)>
<If relevant, consider attaching a session log file or a screenshot)>

WinSCP 5.17.3

Error message:
Nieprawidłowy dostęp do pamięci.

Stack trace:
(002AB3DB) Vcl::Comctrls::TTreeNode::GetTreeView
(00087E3F) ntdll.dll
(000732C1) ntdll.dll.KiUserExceptionDispatcher
(0044B909) Customdriveview::_16446
(0044B909) Customdriveview::_16446
(0044B909) Customdriveview::_16446
(0044B909) Customdriveview::_16446
(0044B909) Customdriveview::_16446
(0044B909) Customdriveview::_16446
(0044B909) Customdriveview::_16446
(0044B909) Customdriveview::_16446
(0044B998) Customdriveview::TCustomDriveView::IterateSubTree
(0045E0BE) Driveview::TDriveView::ValidateDirectoryEx
(0044B629) Customdriveview::TCustomDriveView::ValidateDirectory
(00250607) Vcl::Extctrls::TTimer::Timer
(003A47E0) System::Classes::_18201
(00043449) USER32.dll
(00023F87) USER32.dll
(000230D9) USER32.dll
(00022EBB) USER32.dll.DispatchMessageW

The problem happens rarely. I cannot reproduce it.

<Try to describe precise steps that lead to the problem (where do you click, what keys do you press, what do you see, etc.)>
<If relevant, consider attaching a session log file or a screenshot)>

WinSCP 5.17.5

Error message:
Invalid access to memory.

Stack trace:
(002AB6A3) Vcl::Comctrls::TTreeNode::GetTreeView
(00087E3F) ntdll.dll
(000732C1) ntdll.dll.KiUserExceptionDispatcher
(0044BBDD) Customdriveview::_16446
(0044BBDD) Customdriveview::_16446
(0044BBDD) Customdriveview::_16446
(0044BBDD) Customdriveview::_16446
(0044BC6C) Customdriveview::TCustomDriveView::IterateSubTree
(0045E3A2) Driveview::TDriveView::ValidateDirectoryEx
(0044B8FD) Customdriveview::TCustomDriveView::ValidateDirectory
(002508CF) Vcl::Extctrls::TTimer::Timer
(003A4AA8) System::Classes::_18201
(00043449) USER32.dll
(00023F87) USER32.dll
(000230D9) USER32.dll
(00022EBB) USER32.dll.DispatchMessageW

The problem happens rarely. I cannot reproduce it.

<Try to describe precise steps that lead to the problem (where do you click, what keys do you press, what do you see, etc.)>
<If relevant, consider attaching a session log file or a screenshot)>

WinSCP 5.17.3

Error message:
Invalid access to memory.

Stack trace:
(002AB3DB) Vcl::Comctrls::TTreeNode::GetTreeView
(0008421F) ntdll.dll
(00071B21) ntdll.dll.KiUserExceptionDispatcher
(0044B909) Customdriveview::_16446
(0044B909) Customdriveview::_16446
(0044B909) Customdriveview::_16446
(0044B909) Customdriveview::_16446
(0044B909) Customdriveview::_16446
(0044B909) Customdriveview::_16446
(0044B998) Customdriveview::TCustomDriveView::IterateSubTree
(0045E0BE) Driveview::TDriveView::ValidateDirectoryEx
(0044B629) Customdriveview::TCustomDriveView::ValidateDirectory
(00250607) Vcl::Extctrls::TTimer::Timer
(003A47E0) System::Classes::_18201
(00044CA9) USER32.dll
(000357B7) USER32.dll
(000348F6) USER32.dll
(000346CB) USER32.dll.DispatchMessageW

I know how to reproduce the problem or the problem happens frequently enough. I wish to be contacted by the WinSCP team to help resolving the problem.

Thanks for your report.
I have sent you an email with a debug version of WinSCP to the address you have used to register on this forum.

<Try to describe precise steps that lead to the problem (where do you click, what keys do you press, what do you see, etc.)>
<If relevant, consider attaching a session log file or a screenshot)>

WinSCP 5.17.4

Error message:
Invalid access to memory.

Stack trace:
(002AB653) Vcl::Comctrls::TTreeNode::GetTreeView
(0008403F) ntdll.dll
(00071941) ntdll.dll.KiUserExceptionDispatcher
(0044BC1C) Customdriveview::TCustomDriveView::IterateSubTree
(0045E352) Driveview::TDriveView::ValidateDirectoryEx
(0044B8AD) Customdriveview::TCustomDriveView::ValidateDirectory
(0025087F) Vcl::Extctrls::TTimer::Timer
(003A4A58) System::Classes::_18201
(00044E39) USER32.dll
(000359D7) USER32.dll
(00034B16) USER32.dll
(000348EB) USER32.dll.DispatchMessageW

The problem happens rarely. I cannot reproduce it.

<Try to describe precise steps that lead to the problem (where do you click, what keys do you press, what do you see, etc.)>
<If relevant, consider attaching a session log file or a screenshot)>

WinSCP 5.17.5

Error message:
Invalid access to memory.

Stack trace:
(002AB6A3) Vcl::Comctrls::TTreeNode::GetTreeView
(00087E3F) ntdll.dll
(000732C1) ntdll.dll.KiUserExceptionDispatcher
(0044BC6C) Customdriveview::TCustomDriveView::IterateSubTree
(0045E3A2) Driveview::TDriveView::ValidateDirectoryEx
(0044B8FD) Customdriveview::TCustomDriveView::ValidateDirectory
(0045C029) Driveview::TDriveView::Change
(002AFEDA) Vcl::Comctrls::TCustomTreeView::CNNotify
(0044B415) Customdriveview::TCustomDriveView::CNNotify
(00279E45) Vcl::Controls::TWinControl::WndProc
(002B0196) Vcl::Comctrls::TCustomTreeView::WndProc
(00279FAB) Vcl::Controls::_17076
(00279E45) Vcl::Controls::TWinControl::WndProc
(0027948C) Vcl::Controls::TWinControl::MainWndProc
(003A4AA8) System::Classes::_18201
(00043449) USER32.dll
(00023F87) USER32.dll
(00023B25) USER32.dll
(0002D16D) USER32.dll
(0007327B) ntdll.dll.KiUserCallbackDispatcher
(000233FE) USER32.dll.SendMessageW
(00059831) COMCTL32.DLL
(0001DB25) COMCTL32.DLL
(0001D9FA) COMCTL32.DLL
(00023508) COMCTL32.DLL
(00043449) USER32.dll
(00023F87) USER32.dll
(000234DA) USER32.dll.CallWindowProcW
(00279F56) Vcl::Controls::TWinControl::DefaultHandler
(00279E45) Vcl::Controls::TWinControl::WndProc
(002B0196) Vcl::Comctrls::TCustomTreeView::WndProc
(003A4AA8) System::Classes::_18201
(00043449) USER32.dll
(00023F87) USER32.dll
(00023B25) USER32.dll
(0002D16D) USER32.dll
(0007327B) ntdll.dll.KiUserCallbackDispatcher
(000233FE) USER32.dll.SendMessageW
(00361E33) Winapi::Commctrl::TreeView_SelectItem
(0044A375) Customdriveview::TCustomDriveView::CreateWnd
(00278ED6) Vcl::Controls::TWinControl::CreateHandle
(00275301) Vcl::Controls::TControl::WndProc
(00279E45) Vcl::Controls::TWinControl::WndProc
(002B0196) Vcl::Comctrls::TCustomTreeView::WndProc
(00279096) Vcl::Controls::TWinControl::RecreateWnd
(00279E45) Vcl::Controls::TWinControl::WndProc

The problem happens rarely. I cannot reproduce it.

I connected a second monitor while the PC was waking from sleep. After logging on, this error occurred.

WinSCP 5.17.5

Error message:
Invalid access to memory.

Stack trace:
(002AB6A3) Vcl::Comctrls::TTreeNode::GetTreeView
(0003EC9E) ntdll.dll.ZwWow64CallFunction64
(0003F42A) ntdll.dll.KiUserExceptionDispatcher
(0044BBDD) Customdriveview::_16446
(0044BBDD) Customdriveview::_16446
(0044BBDD) Customdriveview::_16446
(0044BC6C) Customdriveview::TCustomDriveView::IterateSubTree
(0045E3A2) Driveview::TDriveView::ValidateDirectoryEx
(0044B8FD) Customdriveview::TCustomDriveView::ValidateDirectory
(002508CF) Vcl::Extctrls::TTimer::Timer
(003A4AA8) System::Classes::_18201
(00007FFF) USER32.DLL.CallNextHookEx
(0000825C) USER32.DLL
(000097FA) USER32.DLL
(0000986B) USER32.DLL.DispatchMessageW

The problem happens rarely. I cannot reproduce it.

<Try to describe precise steps that lead to the problem (where do you click, what keys do you press, what do you see, etc.)>
<If relevant, consider attaching a session log file or a screenshot)>

WinSCP 5.17.5

Error message:
Invalid access to memory.

Stack trace:
(002AB6A3) Vcl::Comctrls::TTreeNode::GetTreeView
(0008262F) ntdll.dll
(0007019A) ntdll.dll.KiUserExceptionDispatcher
(0044BBDD) Customdriveview::_16446
(0044BBDD) Customdriveview::_16446
(0044BBDD) Customdriveview::_16446
(0044BBDD) Customdriveview::_16446
(0044BC6C) Customdriveview::TCustomDriveView::IterateSubTree
(0045E3A2) Driveview::TDriveView::ValidateDirectoryEx
(0044B8FD) Customdriveview::TCustomDriveView::ValidateDirectory
(002508CF) Vcl::Extctrls::TTimer::Timer
(003A4AA8) System::Classes::_18201
(0002C271) USER32.dll
(0000C305) USER32.dll
(0000BC4F) USER32.dll
(0000BA0B) USER32.dll.DispatchMessageW

The problem happens rarely. I cannot reproduce it.

<Try to describe precise steps that lead to the problem (where do you click, what keys do you press, what do you see, etc.)>
<If relevant, consider attaching a session log file or a screenshot)>

WinSCP 5.17.5

Error message:
メモリのアクセス違反

スタック トレース:
(002AB6A3) Vcl::Comctrls::TTreeNode::GetTreeView
(00087D7F) ntdll.dll
(00073221) ntdll.dll.KiUserExceptionDispatcher
(0045D572) Driveview::_16498
(0045D49C) Driveview::_16497
(0045D572) Driveview::_16498
(0045D49C) Driveview::_16497
(0045D572) Driveview::_16498
(0045D49C) Driveview::_16497
(0045D572) Driveview::_16498
(0045D77D) Driveview::TDriveView::FindNodeToPath
(0045F249) Driveview::TDriveView::FindPathNode
(0044BE06) Customdriveview::TCustomDriveView::SetDirectory
(0045F2F6) Driveview::TDriveView::SetDirectory
(0044F3C1) Dirview::TDirView::SetPath
(000170B4) TCustomScpExplorerForm::OpenBookmark
(00052509) TScpCommanderForm::OpenBookmark
(0002B28D) TCustomScpExplorerForm::DoBookmarkClick
(003A4AA8) System::Classes::_18201
(00043389) USER32.dll
(00023F87) USER32.dll
(000230D9) USER32.dll
(00022EBB) USER32.dll.DispatchMessageW

The problem happens rarely. I cannot reproduce it.

coming back from standby

WinSCP 5.17.5

Error message:
Accès mémoire invalide.

Trace de la pile :
(002AB6A3) Vcl::Comctrls::TTreeNode::GetTreeView
(00087E3F) ntdll.dll
(000732C1) ntdll.dll.KiUserExceptionDispatcher
(0044BBDD) Customdriveview::_16446
(0044BBDD) Customdriveview::_16446
(0044BC6C) Customdriveview::TCustomDriveView::IterateSubTree
(0045E3A2) Driveview::TDriveView::ValidateDirectoryEx
(0044B8FD) Customdriveview::TCustomDriveView::ValidateDirectory
(002508CF) Vcl::Extctrls::TTimer::Timer
(003A4AA8) System::Classes::_18201
(00043449) USER32.dll
(00023F87) USER32.dll
(000230D9) USER32.dll
(00022EBB) USER32.dll.DispatchMessageW

The problem happens rarely. I cannot reproduce it.

I'm not sure how this came about.
I was installing the latest microsoft powertoys on another desktop, which did trigger a restart of Windows Explorer. Perhaps that triggered this issue?

WinSCP 5.17.5

Error message:
Invalid access to memory.

Stack trace:
(002AB6A3) Vcl::Comctrls::TTreeNode::GetTreeView
(00087D7F) ntdll.dll
(00073221) ntdll.dll.KiUserExceptionDispatcher
(0044BC6C) Customdriveview::TCustomDriveView::IterateSubTree
(0045E3A2) Driveview::TDriveView::ValidateDirectoryEx
(0044B8FD) Customdriveview::TCustomDriveView::ValidateDirectory
(002508CF) Vcl::Extctrls::TTimer::Timer
(003A4AA8) System::Classes::_18201
(00043389) USER32.dll
(00023F87) USER32.dll
(000230D9) USER32.dll
(00022EBB) USER32.dll.DispatchMessageW

The problem happens rarely. I cannot reproduce it.

<Try to describe precise steps that lead to the problem (where do you click, what keys do you press, what do you see, etc.)>
<If relevant, consider attaching a session log file or a screenshot)>

WinSCP 5.17.5

Error message:
Ошибка доступа к памяти.

Трассировка стека:
(002AB6A3) Vcl::Comctrls::TTreeNode::GetTreeView
(0007E19F) ntdll.dll
(0006BD81) ntdll.dll.KiUserExceptionDispatcher
(0044BBDD) Customdriveview::_16446
(0044BBDD) Customdriveview::_16446
(0044BC6C) Customdriveview::TCustomDriveView::IterateSubTree
(0045E3A2) Driveview::TDriveView::ValidateDirectoryEx
(0044B8FD) Customdriveview::TCustomDriveView::ValidateDirectory
(002508CF) Vcl::Extctrls::TTimer::Timer
(003A4AA8) System::Classes::_18201
(0003AF19) USER32.dll
(000373E5) USER32.dll
(00036C99) USER32.dll
(00036A7B) USER32.dll.DispatchMessageW

The problem happens rarely. I cannot reproduce it.

<Try to describe precise steps that lead to the problem (where do you click, what keys do you press, what do you see, etc.)>
WinSCP sftp is just in the background, have not transferred files for hours.
<If relevant, consider attaching a session log file or a screenshot)>

WinSCP 5.17.5

Error message:
Invalid access to memory.

Stack trace:
(002AB6A3) Vcl::Comctrls::TTreeNode::GetTreeView
(0008262F) ntdll.dll
(0007019A) ntdll.dll.KiUserExceptionDispatcher
(0044BBDD) Customdriveview::_16446
(0044BBDD) Customdriveview::_16446
(0044BC6C) Customdriveview::TCustomDriveView::IterateSubTree
(0045E3A2) Driveview::TDriveView::ValidateDirectoryEx
(0044B8FD) Customdriveview::TCustomDriveView::ValidateDirectory
(002508CF) Vcl::Extctrls::TTimer::Timer
(003A4AA8) System::Classes::_18201
(0002C271) USER32.dll
(0000C305) USER32.dll
(0000BC4F) USER32.dll
(0000BA0B) USER32.dll.DispatchMessageW

The problem happens rarely. I cannot reproduce it.

<Try to describe precise steps that lead to the problem (where do you click, what keys do you press, what do you see, etc.)>
<If relevant, consider attaching a session log file or a screenshot)>

WinSCP 5.17.6

Error message:
Invalid access to memory.

Stack trace:
(002AB6C3) Vcl::Comctrls::TTreeNode::GetTreeView
(0008421F) ntdll.dll
(00071B21) ntdll.dll.KiUserExceptionDispatcher
(0044BC05) Customdriveview::_16446
(0044BC05) Customdriveview::_16446
(0044BC94) Customdriveview::TCustomDriveView::IterateSubTree
(0045E3CA) Driveview::TDriveView::ValidateDirectoryEx
(0044B925) Customdriveview::TCustomDriveView::ValidateDirectory
(002508EF) Vcl::Extctrls::TTimer::Timer
(003A4AC8) System::Classes::_18201
(00044CA9) USER32.dll
(000357B7) USER32.dll
(000348F6) USER32.dll
(000346CB) USER32.dll.DispatchMessageW

The problem happens rarely. I cannot reproduce it.

<Try to describe precise steps that lead to the problem (where do you click, what keys do you press, what do you see, etc.)>
<If relevant, consider attaching a session log file or a screenshot)>

WinSCP 5.17.5

Error message:
Invalid access to memory.

Stack trace:
(002AB6A3) Vcl::Comctrls::TTreeNode::GetTreeView
(0007E31F) ntdll.dll
(0006BEF1) ntdll.dll.KiUserExceptionDispatcher
(0044BBDD) Customdriveview::_16446
(0044BBDD) Customdriveview::_16446
(0044BBDD) Customdriveview::_16446
(0044BBDD) Customdriveview::_16446
(0044BBDD) Customdriveview::_16446
(0044BC6C) Customdriveview::TCustomDriveView::IterateSubTree
(0045E3A2) Driveview::TDriveView::ValidateDirectoryEx
(0044B8FD) Customdriveview::TCustomDriveView::ValidateDirectory
(002508CF) Vcl::Extctrls::TTimer::Timer
(003A4AA8) System::Classes::_18201
(0003A869) USER32.dll
(00036BB5) USER32.dll
(00036469) USER32.dll
(0003624B) USER32.dll.DispatchMessageW

The problem happens rarely. I cannot reproduce it.

<Try to describe precise steps that lead to the problem (where do you click, what keys do you press, what do you see, etc.)>
<If relevant, consider attaching a session log file or a screenshot)>

WinSCP 5.17.5

Error message:
메모리 접근이 잘못 되었습니다.

스택 추적:
(002AB6A3) Vcl::Comctrls::TTreeNode::GetTreeView
(00087E3F) ntdll.dll
(000732D1) ntdll.dll.KiUserExceptionDispatcher
(0044BBDD) Customdriveview::_16446
(0044BBDD) Customdriveview::_16446
(0044BC6C) Customdriveview::TCustomDriveView::IterateSubTree
(0045E3A2) Driveview::TDriveView::ValidateDirectoryEx
(0044B8FD) Customdriveview::TCustomDriveView::ValidateDirectory
(002508CF) Vcl::Extctrls::TTimer::Timer
(003A4AA8) System::Classes::_18201
(000434B9) USER32.dll
(00023FF7) USER32.dll
(00023149) USER32.dll
(00022F2B) USER32.dll.DispatchMessageW

The problem happens rarely. I cannot reproduce it.

Resumed Windows 10 system from hibernation.

WinSCP 5.17.6

Error message:
Invalid access to memory.

Stack trace:
(002AB6C3) Vcl::Comctrls::TTreeNode::GetTreeView
(00087E3F) ntdll.dll
(000732D1) ntdll.dll.KiUserExceptionDispatcher
(0044BC05) Customdriveview::_16446
(0044BC05) Customdriveview::_16446
(0044BC05) Customdriveview::_16446
(0044BC94) Customdriveview::TCustomDriveView::IterateSubTree
(0045E3CA) Driveview::TDriveView::ValidateDirectoryEx
(0044B925) Customdriveview::TCustomDriveView::ValidateDirectory
(002508EF) Vcl::Extctrls::TTimer::Timer
(003A4AC8) System::Classes::_18201
(000434B9) USER32.dll
(00023FF7) USER32.dll
(00023149) USER32.dll
(00022F2B) USER32.dll.DispatchMessageW

The problem happens rarely. I cannot reproduce it.

<Try to describe precise steps that lead to the problem (where do you click, what keys do you press, what do you see, etc.)>
<If relevant, consider attaching a session log file or a screenshot)>

WinSCP 5.17.3

Error message:
Invalid access to memory.

Stack trace:
(002AB3DB) Vcl::Comctrls::TTreeNode::GetTreeView
(00089CCF) ntdll.dll
(00070B81) ntdll.dll.KiUserExceptionDispatcher
(0044B909) Customdriveview::_16446
(0044B909) Customdriveview::_16446
(0044B909) Customdriveview::_16446
(0044B998) Customdriveview::TCustomDriveView::IterateSubTree
(0045E0BE) Driveview::TDriveView::ValidateDirectoryEx
(0044B629) Customdriveview::TCustomDriveView::ValidateDirectory
(00250607) Vcl::Extctrls::TTimer::Timer
(003A47E0) System::Classes::_18201
(0001D189) USER32.dll
(00027A24) USER32.dll
(0002A353) USER32.dll
(000181A7) USER32.dll
(00017CEB) USER32.dll.DispatchMessageW

The problem happens rarely. I cannot reproduce it.

<Try to describe precise steps that lead to the problem (where do you click, what keys do you press, what do you see, etc.)>
<If relevant, consider attaching a session log file or a screenshot)>

WinSCP 5.17.6

Error message:
Invalid access to memory.

Stack trace:
(002AB6C3) Vcl::Comctrls::TTreeNode::GetTreeView
(0008421F) ntdll.dll
(00071B21) ntdll.dll.KiUserExceptionDispatcher
(0044BC05) Customdriveview::_16446
(0044BC05) Customdriveview::_16446
(0044BC05) Customdriveview::_16446
(0044BC05) Customdriveview::_16446
(0044BC94) Customdriveview::TCustomDriveView::IterateSubTree
(0045E3CA) Driveview::TDriveView::ValidateDirectoryEx
(0044B925) Customdriveview::TCustomDriveView::ValidateDirectory
(002508EF) Vcl::Extctrls::TTimer::Timer
(003A4AC8) System::Classes::_18201
(00044CA9) USER32.dll
(000357B7) USER32.dll
(000348F6) USER32.dll
(000346CB) USER32.dll.DispatchMessageW

The problem happens rarely. I cannot reproduce it.

<Try to describe precise steps that lead to the problem (where do you click, what keys do you press, what do you see, etc.)>
<If relevant, consider attaching a session log file or a screenshot)>

WinSCP 5.17.6

Error message:
Virheellinen muistiviittaus.

Pinon jäljitys:
(002AB6C3) Vcl::Comctrls::TTreeNode::GetTreeView
(00087E3F) ntdll.dll
(000732D1) ntdll.dll.KiUserExceptionDispatcher
(0044BC94) Customdriveview::TCustomDriveView::IterateSubTree
(0045E3CA) Driveview::TDriveView::ValidateDirectoryEx
(0044B925) Customdriveview::TCustomDriveView::ValidateDirectory
(002508EF) Vcl::Extctrls::TTimer::Timer
(003A4AC8) System::Classes::_18201
(000434B9) USER32.dll
(00023FF7) USER32.dll
(00023149) USER32.dll
(00022F2B) USER32.dll.DispatchMessageW

The problem happens rarely. I cannot reproduce it.

Left it running in the background and this error message was on when I came back.

WinSCP 5.17.6

Error message:
Invalid access to memory.

Stack trace:
(002AB6C3) Vcl::Comctrls::TTreeNode::GetTreeView
(0008510F) ntdll.dll
(000725C1) ntdll.dll.KiUserExceptionDispatcher
(0044BC94) Customdriveview::TCustomDriveView::IterateSubTree
(0045E3CA) Driveview::TDriveView::ValidateDirectoryEx
(0044B925) Customdriveview::TCustomDriveView::ValidateDirectory
(0045C051) Driveview::TDriveView::Change
(002AFEFA) Vcl::Comctrls::TCustomTreeView::CNNotify
(0044B43D) Customdriveview::TCustomDriveView::CNNotify
(00279E65) Vcl::Controls::TWinControl::WndProc
(002B01B6) Vcl::Comctrls::TCustomTreeView::WndProc
(00279FCB) Vcl::Controls::_17076
(00279E65) Vcl::Controls::TWinControl::WndProc
(002794AC) Vcl::Controls::TWinControl::MainWndProc
(003A4AC8) System::Classes::_18201
(0003C9D9) USER32.dll
(000336F5) USER32.dll
(000332F5) USER32.dll
(000371ED) USER32.dll
(0007257B) ntdll.dll.KiUserCallbackDispatcher
(000316DA) USER32.dll.SendMessageW
(000680F1) COMCTL32.DLL
(000288A2) COMCTL32.DLL
(00028777) COMCTL32.DLL
(0003E4D8) COMCTL32.DLL
(0003C9D9) USER32.dll
(000336F5) USER32.dll
(00032DD2) USER32.dll
(00031536) USER32.dll.CallWindowProcW
(00279F76) Vcl::Controls::TWinControl::DefaultHandler
(00279E65) Vcl::Controls::TWinControl::WndProc
(002B01B6) Vcl::Comctrls::TCustomTreeView::WndProc
(003A4AC8) System::Classes::_18201
(0003C9D9) USER32.dll
(000336F5) USER32.dll
(000332F5) USER32.dll
(000371ED) USER32.dll
(0007257B) ntdll.dll.KiUserCallbackDispatcher
(000316DA) USER32.dll.SendMessageW
(00361E53) Winapi::Commctrl::TreeView_SelectItem
(0044A39D) Customdriveview::TCustomDriveView::CreateWnd
(00278EF6) Vcl::Controls::TWinControl::CreateHandle
(00275321) Vcl::Controls::TControl::WndProc
(00279E65) Vcl::Controls::TWinControl::WndProc
(002B01B6) Vcl::Comctrls::TCustomTreeView::WndProc
(002790B6) Vcl::Controls::TWinControl::RecreateWnd
(00279E65) Vcl::Controls::TWinControl::WndProc

The problem happens rarely. I cannot reproduce it.

<Try to describe precise steps that lead to the problem (where do you click, what keys do you press, what do you see, etc.)>
<If relevant, consider attaching a session log file or a screenshot)>

WinSCP 5.17.6

Error message:
Invalid access to memory.

Stack trace:
(002AB6C3) Vcl::Comctrls::TTreeNode::GetTreeView
(0007E19F) ntdll.dll
(0006BD81) ntdll.dll.KiUserExceptionDispatcher
(0044BC05) Customdriveview::_16446
(0044BC05) Customdriveview::_16446
(0044BC94) Customdriveview::TCustomDriveView::IterateSubTree
(0045E3CA) Driveview::TDriveView::ValidateDirectoryEx
(0044B925) Customdriveview::TCustomDriveView::ValidateDirectory
(002508EF) Vcl::Extctrls::TTimer::Timer
(003A4AC8) System::Classes::_18201
(0003AE59) USER32.dll
(000373D5) USER32.dll
(00036C89) USER32.dll
(00036A6B) USER32.dll.DispatchMessageW

The problem happens rarely. I cannot reproduce it.

<Try to describe precise steps that lead to the problem (where do you click, what keys do you press, what do you see, etc.)>
<If relevant, consider attaching a session log file or a screenshot)>

WinSCP 5.17.6

Error message:
Invalid access to memory.

Stack trace:
(002AB6C3) Vcl::Comctrls::TTreeNode::GetTreeView
(0007E19F) ntdll.dll
(0006BD81) ntdll.dll.KiUserExceptionDispatcher
(0044BC05) Customdriveview::_16446
(0044BC05) Customdriveview::_16446
(0044BC94) Customdriveview::TCustomDriveView::IterateSubTree
(0045E3CA) Driveview::TDriveView::ValidateDirectoryEx
(0044B925) Customdriveview::TCustomDriveView::ValidateDirectory
(002508EF) Vcl::Extctrls::TTimer::Timer
(003A4AC8) System::Classes::_18201
(0003AE59) USER32.dll
(000373D5) USER32.dll
(00036C89) USER32.dll
(00036A6B) USER32.dll.DispatchMessageW

The problem happens rarely. I cannot reproduce it.

<Try to describe precise steps that lead to the problem (where do you click, what keys do you press, what do you see, etc.)>
<If relevant, consider attaching a session log file or a screenshot)>

WinSCP 5.17.6

Error message:
Invalid access to memory.

Stack trace:
(002AB6C3) Vcl::Comctrls::TTreeNode::GetTreeView
(0007E19F) ntdll.dll
(0006BD81) ntdll.dll.KiUserExceptionDispatcher
(0044BC05) Customdriveview::_16446
(0044BC05) Customdriveview::_16446
(0044BC94) Customdriveview::TCustomDriveView::IterateSubTree
(0045E3CA) Driveview::TDriveView::ValidateDirectoryEx
(0044B925) Customdriveview::TCustomDriveView::ValidateDirectory
(002508EF) Vcl::Extctrls::TTimer::Timer
(003A4AC8) System::Classes::_18201
(0003AE59) USER32.dll
(000373D5) USER32.dll
(00036C89) USER32.dll
(00036A6B) USER32.dll.DispatchMessageW

The problem happens rarely. I cannot reproduce it.

<Try to describe precise steps that lead to the problem (where do you click, what keys do you press, what do you see, etc.)>
<If relevant, consider attaching a session log file or a screenshot)>

WinSCP 5.17.6

Error message:
Zugriffsverletzung - ungültiger Zugriff auf den Speicher.

Stack trace:
(002AB6C3) Vcl::Comctrls::TTreeNode::GetTreeView
(00087E3F) ntdll.dll
(000732D1) ntdll.dll.KiUserExceptionDispatcher
(0044BC05) Customdriveview::_16446
(0044BC94) Customdriveview::TCustomDriveView::IterateSubTree
(0045E3CA) Driveview::TDriveView::ValidateDirectoryEx
(0044B925) Customdriveview::TCustomDriveView::ValidateDirectory
(002508EF) Vcl::Extctrls::TTimer::Timer
(003A4AC8) System::Classes::_18201
(000434B9) USER32.dll
(00023FF7) USER32.dll
(00023149) USER32.dll
(00022F2B) USER32.dll.DispatchMessageW

The problem happens rarely. I cannot reproduce it.

<Try to describe precise steps that lead to the problem (where do you click, what keys do you press, what do you see, etc.)>
<If relevant, consider attaching a session log file or a screenshot)>

WinSCP 5.17.6

Error message:
Acesso inválido à memória

Rastreamento de pilha:
(002AB6C3) Vcl::Comctrls::TTreeNode::GetTreeView
(0008510F) ntdll.dll
(000725C1) ntdll.dll.KiUserExceptionDispatcher
(0044BC05) Customdriveview::_16446
(0044BC94) Customdriveview::TCustomDriveView::IterateSubTree
(0045E3CA) Driveview::TDriveView::ValidateDirectoryEx
(0044B925) Customdriveview::TCustomDriveView::ValidateDirectory
(0045C051) Driveview::TDriveView::Change
(002AFEFA) Vcl::Comctrls::TCustomTreeView::CNNotify
(0044B43D) Customdriveview::TCustomDriveView::CNNotify
(00279E65) Vcl::Controls::TWinControl::WndProc
(002B01B6) Vcl::Comctrls::TCustomTreeView::WndProc
(00279FCB) Vcl::Controls::_17076
(00279E65) Vcl::Controls::TWinControl::WndProc
(002794AC) Vcl::Controls::TWinControl::MainWndProc
(003A4AC8) System::Classes::_18201
(0003C9D9) USER32.dll
(000336F5) USER32.dll
(000332F5) USER32.dll
(000371ED) USER32.dll
(0007257B) ntdll.dll.KiUserCallbackDispatcher
(000316DA) USER32.dll.SendMessageW
(000680F1) COMCTL32.DLL
(000288A2) COMCTL32.DLL
(00028777) COMCTL32.DLL
(0003E4D8) COMCTL32.DLL
(0003C9D9) USER32.dll
(000336F5) USER32.dll
(00032DD2) USER32.dll
(00031536) USER32.dll.CallWindowProcW
(00279F76) Vcl::Controls::TWinControl::DefaultHandler
(00279E65) Vcl::Controls::TWinControl::WndProc
(002B01B6) Vcl::Comctrls::TCustomTreeView::WndProc
(003A4AC8) System::Classes::_18201
(0003C9D9) USER32.dll
(000336F5) USER32.dll
(000332F5) USER32.dll
(000371ED) USER32.dll
(0007257B) ntdll.dll.KiUserCallbackDispatcher
(000316DA) USER32.dll.SendMessageW
(00361E53) Winapi::Commctrl::TreeView_SelectItem
(0044A39D) Customdriveview::TCustomDriveView::CreateWnd
(00278EF6) Vcl::Controls::TWinControl::CreateHandle
(00275321) Vcl::Controls::TControl::WndProc
(00279E65) Vcl::Controls::TWinControl::WndProc
(002B01B6) Vcl::Comctrls::TCustomTreeView::WndProc
(002790B6) Vcl::Controls::TWinControl::RecreateWnd
(00279E65) Vcl::Controls::TWinControl::WndProc

I know how to reproduce the problem or the problem happens frequently enough. I wish to be contacted by the WinSCP team to help resolving the problem.

<Try to describe precise steps that lead to the problem (where do you click, what keys do you press, what do you see, etc.)>
<If relevant, consider attaching a session log file or a screenshot)>

WinSCP 5.17.6

Error message:
Invalid access to memory.

Stack trace:
(002AB6C3) Vcl::Comctrls::TTreeNode::GetTreeView
(0003EC9E) ntdll.dll.ZwWow64CallFunction64
(0003F42A) ntdll.dll.KiUserExceptionDispatcher
(0044BC05) Customdriveview::_16446
(0044BC05) Customdriveview::_16446
(0044BC05) Customdriveview::_16446
(0044BC94) Customdriveview::TCustomDriveView::IterateSubTree
(0045E3CA) Driveview::TDriveView::ValidateDirectoryEx
(0044B925) Customdriveview::TCustomDriveView::ValidateDirectory
(002508EF) Vcl::Extctrls::TTimer::Timer
(003A4AC8) System::Classes::_18201
(00007FFF) USER32.dll.CallNextHookEx
(0000825C) USER32.dll
(000097FA) USER32.dll
(0000986B) USER32.dll.DispatchMessageW

The problem happens rarely. I cannot reproduce it.

diter.suporte@... wrote:

WinSCP 5.17.6

Error message:
Acesso inválido à memória

Rastreamento de pilha:
(002AB6C3) Vcl::Comctrls::TTreeNode::GetTreeView
(0008510F) ntdll.dll
(000725C1) ntdll.dll.KiUserExceptionDispatcher
(0044BC05) Customdriveview::_16446
(0044BC94) Customdriveview::TCustomDriveView::IterateSubTree
(0045E3CA) Driveview::TDriveView::ValidateDirectoryEx
(0044B925) Customdriveview::TCustomDriveView::ValidateDirectory
(0045C051) Driveview::TDriveView::Change
(002AFEFA) Vcl::Comctrls::TCustomTreeView::CNNotify
(0044B43D) Customdriveview::TCustomDriveView::CNNotify
...

I know how to reproduce the problem or the problem happens frequently enough. I wish to be contacted by the WinSCP team to help resolving the problem.

Thanks for your report.
I have sent you an email with a debug version of WinSCP to the address you have used to register on this forum.

WinSCP was idle - I often keep 1 or 2 sessions open, and bring them to the foreground when I need them.

WinSCP 5.17.5

Error message:
Invalid access to memory.

Stack trace:
(002AB6A3)
(0007E31F) ntdll.dll
(0006BEF1) ntdll.dll.KiUserExceptionDispatcher
(0044BC6C)
(0045E3A2)
(0044B8FD)
(002508CF)
(003A4AA8)
(0003A869) USER32.dll
(00036BB5) USER32.dll
(00036469) USER32.dll
(0003624B) USER32.dll.DispatchMessageW

The problem happens rarely. I cannot reproduce it.

<Try to describe precise steps that lead to the problem (where do you click, what keys do you press, what do you see, etc.)>
<If relevant, consider attaching a session log file or a screenshot)>

WinSCP 5.17.6

Error message:
Invalid access to memory.

Stack trace:
(002AB6C3) Vcl::Comctrls::TTreeNode::GetTreeView
(0008421F) ntdll.dll
(00071B21) ntdll.dll.KiUserExceptionDispatcher
(0044BC05) Customdriveview::_16446
(0044BC05) Customdriveview::_16446
(0044BC94) Customdriveview::TCustomDriveView::IterateSubTree
(0045E3CA) Driveview::TDriveView::ValidateDirectoryEx
(0044B925) Customdriveview::TCustomDriveView::ValidateDirectory
(002508EF) Vcl::Extctrls::TTimer::Timer
(003A4AC8) System::Classes::_18201
(00044CA9) USER32.dll
(000357B7) USER32.dll
(000348F6) USER32.dll
(000346CB) USER32.dll.DispatchMessageW

The problem happens rarely. I cannot reproduce it.

<Try to describe precise steps that lead to the problem (where do you click, what keys do you press, what do you see, etc.)>
<If relevant, consider attaching a session log file or a screenshot)>

WinSCP 5.17.5

Error message:
Invalid access to memory.

Stack trace:
(002AB6A3) Vcl::Comctrls::TTreeNode::GetTreeView
(00087E3F) ntdll.dll
(000732D1) ntdll.dll.KiUserExceptionDispatcher
(0044BC6C) Customdriveview::TCustomDriveView::IterateSubTree
(0045E3A2) Driveview::TDriveView::ValidateDirectoryEx
(0044B8FD) Customdriveview::TCustomDriveView::ValidateDirectory
(002508CF) Vcl::Extctrls::TTimer::Timer
(003A4AA8) System::Classes::_18201
(000434B9) USER32.dll
(00023FF7) USER32.dll
(00023149) USER32.dll
(00022F2B) USER32.dll.DispatchMessageW

The problem happens rarely. I cannot reproduce it.

<Try to describe precise steps that lead to the problem (where do you click, what keys do you press, what do you see, etc.)>
<If relevant, consider attaching a session log file or a screenshot)>

WinSCP 5.17.6

Error message:
Invalid access to memory.

Stack trace:
(002AB6C3) Vcl::Comctrls::TTreeNode::GetTreeView
(00087E3F) ntdll.dll
(000732D1) ntdll.dll.KiUserExceptionDispatcher
(0044BC05) Customdriveview::_16446
(0044BC94) Customdriveview::TCustomDriveView::IterateSubTree
(0045E3CA) Driveview::TDriveView::ValidateDirectoryEx
(0044B925) Customdriveview::TCustomDriveView::ValidateDirectory
(0045C051) Driveview::TDriveView::Change
(002AFEFA) Vcl::Comctrls::TCustomTreeView::CNNotify
(0044B43D) Customdriveview::TCustomDriveView::CNNotify
(00279E65) Vcl::Controls::TWinControl::WndProc
(002B01B6) Vcl::Comctrls::TCustomTreeView::WndProc
(00279FCB) Vcl::Controls::_17076
(00279E65) Vcl::Controls::TWinControl::WndProc
(002794AC) Vcl::Controls::TWinControl::MainWndProc
(003A4AC8) System::Classes::_18201
(000434B9) USER32.dll
(00023FF7) USER32.dll
(00023B95) USER32.dll
(0002D1DD) USER32.dll
(0007328B) ntdll.dll.KiUserCallbackDispatcher
(0002346E) USER32.dll.SendMessageW
(00059AA1) COMCTL32.DLL
(0001DB05) COMCTL32.DLL
(0001D9DA) COMCTL32.DLL
(000234E8) COMCTL32.DLL
(000434B9) USER32.dll
(00023FF7) USER32.dll
(0002354A) USER32.dll.CallWindowProcW
(00279F76) Vcl::Controls::TWinControl::DefaultHandler
(00279E65) Vcl::Controls::TWinControl::WndProc
(002B01B6) Vcl::Comctrls::TCustomTreeView::WndProc
(003A4AC8) System::Classes::_18201
(000434B9) USER32.dll
(00023FF7) USER32.dll
(00023B95) USER32.dll
(0002D1DD) USER32.dll
(0007328B) ntdll.dll.KiUserCallbackDispatcher
(0002346E) USER32.dll.SendMessageW
(00361E53) Winapi::Commctrl::TreeView_SelectItem
(0044A39D) Customdriveview::TCustomDriveView::CreateWnd
(00278EF6) Vcl::Controls::TWinControl::CreateHandle
(00275321) Vcl::Controls::TControl::WndProc
(00279E65) Vcl::Controls::TWinControl::WndProc
(002B01B6) Vcl::Comctrls::TCustomTreeView::WndProc
(002790B6) Vcl::Controls::TWinControl::RecreateWnd
(00279E65) Vcl::Controls::TWinControl::WndProc

The problem happens rarely. I cannot reproduce it.

I had WinSCP open while I had locked my PC overnight. After I unlocked it, I got this error message. Do note that I was remoted into this pc via External Desktop and today I am physically at my PC.

WinSCP 5.17.6

Error message:
Invalid access to memory.

Stack trace:
(002AB6C3) Vcl::Comctrls::TTreeNode::GetTreeView
(00087E3F) ntdll.dll
(000732D1) ntdll.dll.KiUserExceptionDispatcher
(0044BC94) Customdriveview::TCustomDriveView::IterateSubTree
(0045E3CA) Driveview::TDriveView::ValidateDirectoryEx
(0044B925) Customdriveview::TCustomDriveView::ValidateDirectory
(0045C051) Driveview::TDriveView::Change
(002AFEFA) Vcl::Comctrls::TCustomTreeView::CNNotify
(0044B43D) Customdriveview::TCustomDriveView::CNNotify
(00279E65) Vcl::Controls::TWinControl::WndProc
(002B01B6) Vcl::Comctrls::TCustomTreeView::WndProc
(00279FCB) Vcl::Controls::_17076
(00279E65) Vcl::Controls::TWinControl::WndProc
(002794AC) Vcl::Controls::TWinControl::MainWndProc
(003A4AC8) System::Classes::_18201
(000434B9) USER32.dll
(00023FF7) USER32.dll
(00023B95) USER32.dll
(0002D1DD) USER32.dll
(0007328B) ntdll.dll.KiUserCallbackDispatcher
(0002346E) USER32.dll.SendMessageW
(00059AA1) COMCTL32.DLL
(0001DB05) COMCTL32.DLL
(0001D9DA) COMCTL32.DLL
(000234E8) COMCTL32.DLL
(000434B9) USER32.dll
(00023FF7) USER32.dll
(0002354A) USER32.dll.CallWindowProcW
(00279F76) Vcl::Controls::TWinControl::DefaultHandler
(00279E65) Vcl::Controls::TWinControl::WndProc
(002B01B6) Vcl::Comctrls::TCustomTreeView::WndProc
(003A4AC8) System::Classes::_18201
(000434B9) USER32.dll
(00023FF7) USER32.dll
(00023B95) USER32.dll
(0002D1DD) USER32.dll
(0007328B) ntdll.dll.KiUserCallbackDispatcher
(0002346E) USER32.dll.SendMessageW
(00361E53) Winapi::Commctrl::TreeView_SelectItem
(0044A39D) Customdriveview::TCustomDriveView::CreateWnd
(00278EF6) Vcl::Controls::TWinControl::CreateHandle
(00275321) Vcl::Controls::TControl::WndProc
(00279E65) Vcl::Controls::TWinControl::WndProc
(002B01B6) Vcl::Comctrls::TCustomTreeView::WndProc
(002790B6) Vcl::Controls::TWinControl::RecreateWnd
(00279E65) Vcl::Controls::TWinControl::WndProc

The problem happens rarely. I cannot reproduce it.

<Try to describe precise steps that lead to the problem (where do you click, what keys do you press, what do you see, etc.)>
<If relevant, consider attaching a session log file or a screenshot)>

WinSCP 5.17.6

Error message:
Invalid access to memory.

Stack trace:
(002AB6C3) Vcl::Comctrls::TTreeNode::GetTreeView
(00087E3F) ntdll.dll
(000732D1) ntdll.dll.KiUserExceptionDispatcher
(0044BC05) Customdriveview::_16446
(0044BC94) Customdriveview::TCustomDriveView::IterateSubTree
(0045E3CA) Driveview::TDriveView::ValidateDirectoryEx
(0044B925) Customdriveview::TCustomDriveView::ValidateDirectory
(002508EF) Vcl::Extctrls::TTimer::Timer
(003A4AC8) System::Classes::_18201
(000434B9) USER32.dll
(00023FF7) USER32.dll
(00023149) USER32.dll
(00022F2B) USER32.dll.DispatchMessageW

The problem happens rarely. I cannot reproduce it.

This happens when WinScp is left running in background over night and remote desktop connection to this machine is closed

WinSCP 5.17.6

Error message:
Virheellinen muistiviittaus.

Pinon jäljitys:
(002AB6C3) Vcl::Comctrls::TTreeNode::GetTreeView
(00087E3F) ntdll.dll
(000732D1) ntdll.dll.KiUserExceptionDispatcher
(0044BC05) Customdriveview::_16446
(0044BC05) Customdriveview::_16446
(0044BC05) Customdriveview::_16446
(0044BC94) Customdriveview::TCustomDriveView::IterateSubTree
(0045E3CA) Driveview::TDriveView::ValidateDirectoryEx
(0044B925) Customdriveview::TCustomDriveView::ValidateDirectory
(002508EF) Vcl::Extctrls::TTimer::Timer
(003A4AC8) System::Classes::_18201
(000434B9) USER32.dll
(00023FF7) USER32.dll
(00023149) USER32.dll
(00022F2B) USER32.dll.DispatchMessageW

The problem happens rarely. I cannot reproduce it.

<Try to describe precise steps that lead to the problem (where do you click, what keys do you press, what do you see, etc.)>
<If relevant, consider attaching a session log file or a screenshot)>

WinSCP 5.17.6

Error message:
Invalid access to memory.

Stack trace:
(002AB6C3) Vcl::Comctrls::TTreeNode::GetTreeView
(00087D7F) ntdll.dll
(00073221) ntdll.dll.KiUserExceptionDispatcher
(0044BC94) Customdriveview::TCustomDriveView::IterateSubTree
(0045E3CA) Driveview::TDriveView::ValidateDirectoryEx
(0044B925) Customdriveview::TCustomDriveView::ValidateDirectory
(00451380) Dirview::TDirView::Reload2
(00453988) Dirview::TDirView::TimerOnTimer
(003A4AC8) System::Classes::_18201
(00043389) USER32.dll
(00023F87) USER32.dll
(000230D9) USER32.dll
(00022EBB) USER32.dll.DispatchMessageW

The problem happens rarely. I cannot reproduce it.

<Try to describe precise steps that lead to the problem (where do you click, what keys do you press, what do you see, etc.)>
<If relevant, consider attaching a session log file or a screenshot)>

WinSCP 5.17.6

Error message:
Ошибка доступа к памяти.

Трассировка стека:
(002AB6C3) Vcl::Comctrls::TTreeNode::GetTreeView
(0008510F) ntdll.dll
(000725C1) ntdll.dll.KiUserExceptionDispatcher
(0044BC94) Customdriveview::TCustomDriveView::IterateSubTree
(0045E3CA) Driveview::TDriveView::ValidateDirectoryEx
(0044B925) Customdriveview::TCustomDriveView::ValidateDirectory
(002508EF) Vcl::Extctrls::TTimer::Timer
(003A4AC8) System::Classes::_18201
(0003C9D9) USER32.dll
(000336F5) USER32.dll
(00031A25) USER32.dll
(000317EB) USER32.dll.DispatchMessageW

The problem happens rarely. I cannot reproduce it.

<Try to describe precise steps that lead to the problem (where do you click, what keys do you press, what do you see, etc.)>
<If relevant, consider attaching a session log file or a screenshot)>

WinSCP 5.17.6

Error message:
メモリのアクセス違反

スタック トレース:
(002AB6C3) Vcl::Comctrls::TTreeNode::GetTreeView
(0008510F) ntdll.dll
(000725C1) ntdll.dll.KiUserExceptionDispatcher
(0044BC05) Customdriveview::_16446
(0044BC05) Customdriveview::_16446
(0044BC05) Customdriveview::_16446
(0044BC05) Customdriveview::_16446
(0044BC94) Customdriveview::TCustomDriveView::IterateSubTree
(0045E3CA) Driveview::TDriveView::ValidateDirectoryEx
(0044B925) Customdriveview::TCustomDriveView::ValidateDirectory
(002508EF) Vcl::Extctrls::TTimer::Timer
(003A4AC8) System::Classes::_18201
(0003C9C9) USER32.dll
(000336E5) USER32.dll
(00031A15) USER32.dll
(000317DB) USER32.dll.DispatchMessageW

The problem happens rarely. I cannot reproduce it.

<Try to describe precise steps that lead to the problem (where do you click, what keys do you press, what do you see, etc.)>
<If relevant, consider attaching a session log file or a screenshot)>

WinSCP 5.17.6

Error message:


Invalid access to memory.

Stack trace:
(002AB6C3) Vcl::Comctrls::TTreeNode::GetTreeView
(00087E3F) ntdll.dll
(000732D1) ntdll.dll.KiUserExceptionDispatcher
(0044BC05) Customdriveview::_16446
(0044BC05) Customdriveview::_16446
(0044BC05) Customdriveview::_16446
(0044BC05) Customdriveview::_16446
(0044BC05) Customdriveview::_16446
(0044BC05) Customdriveview::_16446
(0044BC05) Customdriveview::_16446
(0044BC94) Customdriveview::TCustomDriveView::IterateSubTree
(0045E3CA) Driveview::TDriveView::ValidateDirectoryEx
(0044B925) Customdriveview::TCustomDriveView::ValidateDirectory
(002508EF) Vcl::Extctrls::TTimer::Timer
(003A4AC8) System::Classes::_18201
(000434B9) USER32.dll
(00023FF7) USER32.dll
(00023149) USER32.dll
(00022F2B) USER32.dll.DispatchMessageW

The problem happens rarely. I cannot reproduce it.

First time i have ever seen this and i have been useing WINScp for many years .
i am viewing a file on the linux server that is 404 kilo bytes for 907 lines.

had just take a screen shot with sinpping tool when i noticed the error message .

WinSCP 5.17.6

Error message:
Invalid access to memory.

Stack trace:
(002AB6C3) Vcl::Comctrls::TTreeNode::GetTreeView
(0007E1AF) ntdll.dll
(0006BD91) ntdll.dll.KiUserExceptionDispatcher
(0044BC05) Customdriveview::_16446
(0044BC05) Customdriveview::_16446
(0044BC05) Customdriveview::_16446
(0044BC94) Customdriveview::TCustomDriveView::IterateSubTree
(0045E3CA) Driveview::TDriveView::ValidateDirectoryEx
(0044B925) Customdriveview::TCustomDriveView::ValidateDirectory
(002508EF) Vcl::Extctrls::TTimer::Timer
(003A4AC8) System::Classes::_18201
(0003AAF9) USER32.dll
(00036E75) USER32.dll
(00036729) USER32.dll
(0003650B) USER32.dll.DispatchMessageW

The problem happens rarely. I cannot reproduce it.

Left idling overnight and I found this when I returned to the machine the next day.

Work had been performed on the network in the meantime, including steps that would have broken DNS for a while, but I couldn't think of anything that would have caused a memory error.


WinSCP 5.17.6

Error message:
Invalid access to memory.

Stack trace:
(002AB6C3) Vcl::Comctrls::TTreeNode::GetTreeView
(00087E3F) ntdll.dll
(000732D1) ntdll.dll.KiUserExceptionDispatcher
(0044BC94) Customdriveview::TCustomDriveView::IterateSubTree
(0045E3CA) Driveview::TDriveView::ValidateDirectoryEx
(0044B925) Customdriveview::TCustomDriveView::ValidateDirectory
(0045C051) Driveview::TDriveView::Change
(002AFEFA) Vcl::Comctrls::TCustomTreeView::CNNotify
(0044B43D) Customdriveview::TCustomDriveView::CNNotify
(00279E65) Vcl::Controls::TWinControl::WndProc
(002B01B6) Vcl::Comctrls::TCustomTreeView::WndProc
(00279FCB) Vcl::Controls::_17076
(00279E65) Vcl::Controls::TWinControl::WndProc
(002794AC) Vcl::Controls::TWinControl::MainWndProc
(003A4AC8) System::Classes::_18201
(000434B9) USER32.dll
(00023FF7) USER32.dll
(00023B95) USER32.dll
(0002D1DD) USER32.dll
(0007328B) ntdll.dll.KiUserCallbackDispatcher
(0002346E) USER32.dll.SendMessageW
(00059AA1) COMCTL32.DLL
(0001DB15) COMCTL32.DLL
(0001D9EA) COMCTL32.DLL
(000234F8) COMCTL32.DLL
(000434B9) USER32.dll
(00023FF7) USER32.dll
(0002354A) USER32.dll.CallWindowProcW
(00279F76) Vcl::Controls::TWinControl::DefaultHandler
(00279E65) Vcl::Controls::TWinControl::WndProc
(002B01B6) Vcl::Comctrls::TCustomTreeView::WndProc
(003A4AC8) System::Classes::_18201
(000434B9) USER32.dll
(00023FF7) USER32.dll
(00023B95) USER32.dll
(0002D1DD) USER32.dll
(0007328B) ntdll.dll.KiUserCallbackDispatcher
(0002346E) USER32.dll.SendMessageW
(00361E53) Winapi::Commctrl::TreeView_SelectItem
(0044A39D) Customdriveview::TCustomDriveView::CreateWnd
(00278EF6) Vcl::Controls::TWinControl::CreateHandle
(00275321) Vcl::Controls::TControl::WndProc
(00279E65) Vcl::Controls::TWinControl::WndProc
(002B01B6) Vcl::Comctrls::TCustomTreeView::WndProc
(002790B6) Vcl::Controls::TWinControl::RecreateWnd
(00279E65) Vcl::Controls::TWinControl::WndProc

The problem happens rarely. I cannot reproduce it.

<Try to describe precise steps that lead to the problem (where do you click, what keys do you press, what do you see, etc.)>
<If relevant, consider attaching a session log file or a screenshot)>

WinSCP 5.17.7

Error message:
Invalid access to memory.

Stack trace:
(002AB7A3) Vcl::Comctrls::TTreeNode::GetTreeView
(00087E3F) ntdll.dll
(000732D1) ntdll.dll.KiUserExceptionDispatcher
(0044BD51) Customdriveview::_16446
(0044BD51) Customdriveview::_16446
(0044BD51) Customdriveview::_16446
(0044BDE0) Customdriveview::TCustomDriveView::IterateSubTree
(0045E52E) Driveview::TDriveView::ValidateDirectoryEx
(0044BA71) Customdriveview::TCustomDriveView::ValidateDirectory
(002509CF) Vcl::Extctrls::TTimer::Timer
(003A4BA8) System::Classes::_18201
(000434B9) USER32.dll
(00023FF7) USER32.dll
(00023149) USER32.dll
(00022F2B) USER32.dll.DispatchMessageW

I know how to reproduce the problem or the problem happens frequently enough. I wish to be contacted by the WinSCP team to help resolving the problem.

Thanks for your report.
I have sent you an email with a debug version of WinSCP to the address you have used to register on this forum.

<Try to describe precise steps that lead to the problem (where do you click, what keys do you press, what do you see, etc.)>
<If relevant, consider attaching a session log file or a screenshot)>

WinSCP 5.17.6

Error message:
Invalid access to memory.

Stack trace:
(002AB6C3) Vcl::Comctrls::TTreeNode::GetTreeView
(00087E3F) ntdll.dll
(000732D1) ntdll.dll.KiUserExceptionDispatcher
(0044BC05) Customdriveview::_16446
(0044BC05) Customdriveview::_16446
(0044BC94) Customdriveview::TCustomDriveView::IterateSubTree
(0045E3CA) Driveview::TDriveView::ValidateDirectoryEx
(0044B925) Customdriveview::TCustomDriveView::ValidateDirectory
(002508EF) Vcl::Extctrls::TTimer::Timer
(003A4AC8) System::Classes::_18201
(000434B9) USER32.dll
(00023FF7) USER32.dll
(00023149) USER32.dll
(00022F2B) USER32.dll.DispatchMessageW

The problem happens rarely. I cannot reproduce it.

No idea what triggered it. It happened overnight.

WinSCP 5.17.7

Error message:
Invalid access to memory.

Stack trace:
(002AB7A3) Vcl::Comctrls::TTreeNode::GetTreeView
(00087E3F) ntdll.dll
(000732D1) ntdll.dll.KiUserExceptionDispatcher
(0044BD51) Customdriveview::_16446
(0044BD51) Customdriveview::_16446
(0044BD51) Customdriveview::_16446
(0044BD51) Customdriveview::_16446
(0044BD51) Customdriveview::_16446
(0044BDE0) Customdriveview::TCustomDriveView::IterateSubTree
(0045E52E) Driveview::TDriveView::ValidateDirectoryEx
(0044BA71) Customdriveview::TCustomDriveView::ValidateDirectory
(002509CF) Vcl::Extctrls::TTimer::Timer
(003A4BA8) System::Classes::_18201
(000434B9) USER32.dll
(00023FF7) USER32.dll
(00023149) USER32.dll
(00022F2B) USER32.dll.DispatchMessageW

The problem happens rarely. I cannot reproduce it.

Came this morning and the error was there.

WinSCP 5.17.6

Error message:
Invalid access to memory.

Stack trace:
(002AB6C3) Vcl::Comctrls::TTreeNode::GetTreeView
(00087E3F) ntdll.dll
(000732D1) ntdll.dll.KiUserExceptionDispatcher
(0044BC05) Customdriveview::_16446
(0044BC05) Customdriveview::_16446
(0044BC05) Customdriveview::_16446
(0044BC94) Customdriveview::TCustomDriveView::IterateSubTree
(0045E3CA) Driveview::TDriveView::ValidateDirectoryEx
(0044B925) Customdriveview::TCustomDriveView::ValidateDirectory
(002508EF) Vcl::Extctrls::TTimer::Timer
(003A4AC8) System::Classes::_18201
(000435C9) USER32.dll
(000240D7) USER32.dll
(00023229) USER32.dll
(0002300B) USER32.dll.DispatchMessageW

The problem happens rarely. I cannot reproduce it.

<Try to describe precise steps that lead to the problem (where do you click, what keys do you press, what do you see, etc.)>
<If relevant, consider attaching a session log file or a screenshot)>

WinSCP 5.17.7

Error message:
Invalid access to memory.

Stack trace:
(002AB7A3) Vcl::Comctrls::TTreeNode::GetTreeView
(00087E3F) ntdll.dll
(000732D1) ntdll.dll.KiUserExceptionDispatcher
(0044BD51) Customdriveview::_16446
(0044BDE0) Customdriveview::TCustomDriveView::IterateSubTree
(0045E52E) Driveview::TDriveView::ValidateDirectoryEx
(0044BA71) Customdriveview::TCustomDriveView::ValidateDirectory
(002509CF) Vcl::Extctrls::TTimer::Timer
(003A4BA8) System::Classes::_18201
(000435C9) USER32.dll
(000240D7) USER32.dll
(00023229) USER32.dll
(0002300B) USER32.dll.DispatchMessageW

The problem happens rarely. I cannot reproduce it.

<Try to describe precise steps that lead to the problem (where do you click, what keys do you press, what do you see, etc.)>
<If relevant, consider attaching a session log file or a screenshot)>

WinSCP 5.17.6

Error message:
Invalid access to memory.

Stack trace:
(002AB6C3) Vcl::Comctrls::TTreeNode::GetTreeView
(00087E3F) ntdll.dll
(000732D1) ntdll.dll.KiUserExceptionDispatcher
(0044BC05) Customdriveview::_16446
(0044BC94) Customdriveview::TCustomDriveView::IterateSubTree
(0045E3CA) Driveview::TDriveView::ValidateDirectoryEx
(0044B925) Customdriveview::TCustomDriveView::ValidateDirectory
(002508EF) Vcl::Extctrls::TTimer::Timer
(003A4AC8) System::Classes::_18201
(000434B9) USER32.dll
(00023FF7) USER32.dll
(00023149) USER32.dll
(00022F2B) USER32.dll.DispatchMessageW

The problem happens rarely. I cannot reproduce it.

<Try to describe precise steps that lead to the problem (where do you click, what keys do you press, what do you see, etc.)>
<If relevant, consider attaching a session log file or a screenshot)>

WinSCP 5.17.7

Error message:
Invalid access to memory.

Stack trace:
(002AB7A3) Vcl::Comctrls::TTreeNode::GetTreeView
(0007E31F) ntdll.dll
(0006BEF1) ntdll.dll.KiUserExceptionDispatcher
(0044BDE0) Customdriveview::TCustomDriveView::IterateSubTree
(0045E52E) Driveview::TDriveView::ValidateDirectoryEx
(0044BA71) Customdriveview::TCustomDriveView::ValidateDirectory
(0045C1B5) Driveview::TDriveView::Change
(002AFFDA) Vcl::Comctrls::TCustomTreeView::CNNotify
(0044B589) Customdriveview::TCustomDriveView::CNNotify
(00279F45) Vcl::Controls::TWinControl::WndProc
(002B0296) Vcl::Comctrls::TCustomTreeView::WndProc
(0027A0AB) Vcl::Controls::_17076
(00279F45) Vcl::Controls::TWinControl::WndProc
(0027958C) Vcl::Controls::TWinControl::MainWndProc
(003A4BA8) System::Classes::_18201
(0003A869) USER32.dll
(00036BB5) USER32.dll
(00036755) USER32.dll
(00038EA7) USER32.dll
(0006BEAB) ntdll.dll.KiUserCallbackDispatcher
(0001AC62) USER32.dll.SendMessageW
(0003947D) COMCTL32.DLL
(000B83F5) COMCTL32.DLL
(000B8024) COMCTL32.DLL
(000B9AF9) COMCTL32.DLL
(0003A869) USER32.dll
(00036BB5) USER32.dll
(00016B08) USER32.dll.CallWindowProcW
(0027A056) Vcl::Controls::TWinControl::DefaultHandler
(00279F45) Vcl::Controls::TWinControl::WndProc
(002B0296) Vcl::Comctrls::TCustomTreeView::WndProc
(003A4BA8) System::Classes::_18201
(0003A869) USER32.dll
(00036BB5) USER32.dll
(00036755) USER32.dll
(00038EA7) USER32.dll
(0006BEAB) ntdll.dll.KiUserCallbackDispatcher
(0001AC62) USER32.dll.SendMessageW
(00361F33) Winapi::Commctrl::TreeView_SelectItem
(0044A4E9) Customdriveview::TCustomDriveView::CreateWnd
(00278FD6) Vcl::Controls::TWinControl::CreateHandle
(00275401) Vcl::Controls::TControl::WndProc
(00279F45) Vcl::Controls::TWinControl::WndProc
(002B0296) Vcl::Comctrls::TCustomTreeView::WndProc
(00279196) Vcl::Controls::TWinControl::RecreateWnd
(00279F45) Vcl::Controls::TWinControl::WndProc

The problem happens rarely. I cannot reproduce it.

Locked the screen, logged in from remote, found WinSCP in crashed state.
(very first use of version 5.17.7 after update today)

WinSCP 5.17.7

Error message:
Invalid access to memory.

Stack trace:
(002AB7A3) Vcl::Comctrls::TTreeNode::GetTreeView
(00089CCF) ntdll.dll
(00070B81) ntdll.dll.KiUserExceptionDispatcher
(0044BD51) Customdriveview::_16446
(0044BD51) Customdriveview::_16446
(0044BD51) Customdriveview::_16446
(0044BD51) Customdriveview::_16446
(0044BD51) Customdriveview::_16446
(0044BDE0) Customdriveview::TCustomDriveView::IterateSubTree
(0045E52E) Driveview::TDriveView::ValidateDirectoryEx
(0044BA71) Customdriveview::TCustomDriveView::ValidateDirectory
(002509CF) Vcl::Extctrls::TTimer::Timer
(003A4BA8) System::Classes::_18201
(0001D189) USER32.dll
(00027A24) USER32.dll
(0002A353) USER32.dll
(000181A7) USER32.dll
(00017CEB) USER32.dll.DispatchMessageW

The problem happens rarely. I cannot reproduce it.

<Try to describe precise steps that lead to the problem (where do you click, what keys do you press, what do you see, etc.)>
<If relevant, consider attaching a session log file or a screenshot)>

WinSCP 5.17.7

Error message:
Invalid access to memory.

Stack trace:
(002AB7A3) Vcl::Comctrls::TTreeNode::GetTreeView
(00087E3F) ntdll.dll
(000732D1) ntdll.dll.KiUserExceptionDispatcher
(0044BDE0) Customdriveview::TCustomDriveView::IterateSubTree
(0045E52E) Driveview::TDriveView::ValidateDirectoryEx
(0044BA71) Customdriveview::TCustomDriveView::ValidateDirectory
(002509CF) Vcl::Extctrls::TTimer::Timer
(003A4BA8) System::Classes::_18201
(000435C9) USER32.dll
(000240D7) USER32.dll
(00023229) USER32.dll
(0002300B) USER32.dll.DispatchMessageW

The problem happens rarely. I cannot reproduce it.

<Try to describe precise steps that lead to the problem (where do you click, what keys do you press, what do you see, etc.)>
<If relevant, consider attaching a session log file or a screenshot)>

WinSCP 5.17.7

Error message:
Invalid access to memory.

Stack trace:
(002AB7A3) Vcl::Comctrls::TTreeNode::GetTreeView
(00087E3F) ntdll.dll
(000732D1) ntdll.dll.KiUserExceptionDispatcher
(0044BD51) Customdriveview::_16446
(0044BD51) Customdriveview::_16446
(0044BDE0) Customdriveview::TCustomDriveView::IterateSubTree
(0045E52E) Driveview::TDriveView::ValidateDirectoryEx
(0044BA71) Customdriveview::TCustomDriveView::ValidateDirectory
(002509CF) Vcl::Extctrls::TTimer::Timer
(003A4BA8) System::Classes::_18201
(000435C9) USER32.dll
(000240D7) USER32.dll
(00023229) USER32.dll
(0002300B) USER32.dll.DispatchMessageW

The problem happens rarely. I cannot reproduce it.

<Try to describe precise steps that lead to the problem (where do you click, what keys do you press, what do you see, etc.)>
<If relevant, consider attaching a session log file or a screenshot)>

WinSCP 5.17.7

Error message:
Invalid access to memory.

Stack trace:
(002AB7A3) Vcl::Comctrls::TTreeNode::GetTreeView
(00087D6F) ntdll.dll
(00073211) ntdll.dll.KiUserExceptionDispatcher
(0044BDE0) Customdriveview::TCustomDriveView::IterateSubTree
(0045E52E) Driveview::TDriveView::ValidateDirectoryEx
(0044BA71) Customdriveview::TCustomDriveView::ValidateDirectory
(0045C1B5) Driveview::TDriveView::Change
(002AFFDA) Vcl::Comctrls::TCustomTreeView::CNNotify
(0044B589) Customdriveview::TCustomDriveView::CNNotify
(00279F45) Vcl::Controls::TWinControl::WndProc
(002B0296) Vcl::Comctrls::TCustomTreeView::WndProc
(0027A0AB) Vcl::Controls::_17076
(00279F45) Vcl::Controls::TWinControl::WndProc
(0027958C) Vcl::Controls::TWinControl::MainWndProc
(003A4BA8) System::Classes::_18201
(00043749) USER32.dll
(000250B7) USER32.dll
(00024C55) USER32.dll
(0002D62D) USER32.dll
(000731CB) ntdll.dll.KiUserCallbackDispatcher
(0002452E) USER32.dll.SendMessageW
(00059491) COMCTL32.DLL
(0001DB15) COMCTL32.DLL
(0001D9EA) COMCTL32.DLL
(000234F8) COMCTL32.DLL
(00043749) USER32.dll
(000250B7) USER32.dll
(0002460A) USER32.dll.CallWindowProcW
(0027A056) Vcl::Controls::TWinControl::DefaultHandler
(00279F45) Vcl::Controls::TWinControl::WndProc
(002B0296) Vcl::Comctrls::TCustomTreeView::WndProc
(003A4BA8) System::Classes::_18201
(00043749) USER32.dll
(000250B7) USER32.dll
(00024C55) USER32.dll
(0002D62D) USER32.dll
(000731CB) ntdll.dll.KiUserCallbackDispatcher
(0002452E) USER32.dll.SendMessageW
(00361F33) Winapi::Commctrl::TreeView_SelectItem
(0044A4E9) Customdriveview::TCustomDriveView::CreateWnd
(00278FD6) Vcl::Controls::TWinControl::CreateHandle
(00275401) Vcl::Controls::TControl::WndProc
(00279F45) Vcl::Controls::TWinControl::WndProc
(002B0296) Vcl::Comctrls::TCustomTreeView::WndProc
(00279196) Vcl::Controls::TWinControl::RecreateWnd
(00279F45) Vcl::Controls::TWinControl::WndProc

The problem happens rarely. I cannot reproduce it.

WinSCP was running in the background. I succesfully copied some files from an external computer to my Laptop earlier. All of these files are fully transfered.

WinSCP 5.17.7

Error message:
Unzulässiger Zugriff auf einen Speicherbereich.

Stapelverfolgung:
(002AB7A3) Vcl::Comctrls::TTreeNode::GetTreeView
(00087E3F) ntdll.dll
(000732D1) ntdll.dll.KiUserExceptionDispatcher
(0044BD51) Customdriveview::_16446
(0044BD51) Customdriveview::_16446
(0044BD51) Customdriveview::_16446
(0044BD51) Customdriveview::_16446
(0044BD51) Customdriveview::_16446
(0044BDE0) Customdriveview::TCustomDriveView::IterateSubTree
(0045E52E) Driveview::TDriveView::ValidateDirectoryEx
(0044BA71) Customdriveview::TCustomDriveView::ValidateDirectory
(002509CF) Vcl::Extctrls::TTimer::Timer
(003A4BA8) System::Classes::_18201
(000435C9) USER32.dll
(000240D7) USER32.dll
(00023229) USER32.dll
(0002300B) USER32.dll.DispatchMessageW

The problem happens rarely. I cannot reproduce it.

<Try to describe precise steps that lead to the problem (where do you click, what keys do you press, what do you see, etc.)>
<If relevant, consider attaching a session log file or a screenshot)>

WinSCP 5.17.7

Error message:
Accès mémoire invalide.

Trace de la pile :
(002AB7A3) Vcl::Comctrls::TTreeNode::GetTreeView
(000861AF) ntdll.dll
(000729F1) ntdll.dll.KiUserExceptionDispatcher
(0044BDE0) Customdriveview::TCustomDriveView::IterateSubTree
(0045E52E) Driveview::TDriveView::ValidateDirectoryEx
(0044BA71) Customdriveview::TCustomDriveView::ValidateDirectory
(0045C1B5) Driveview::TDriveView::Change
(002AFFDA) Vcl::Comctrls::TCustomTreeView::CNNotify
(0044B589) Customdriveview::TCustomDriveView::CNNotify
(00279F45) Vcl::Controls::TWinControl::WndProc
(002B0296) Vcl::Comctrls::TCustomTreeView::WndProc
(0027A0AB) Vcl::Controls::_17076
(00279F45) Vcl::Controls::TWinControl::WndProc
(0027958C) Vcl::Controls::TWinControl::MainWndProc
(003A4BA8) System::Classes::_18201
(0003CFD9) USER32.dll
(00034025) USER32.dll
(00033C25) USER32.dll
(000377ED) USER32.dll
(000729AB) ntdll.dll.KiUserCallbackDispatcher
(00031A3A) USER32.dll.SendMessageW
(00069321) COMCTL32.DLL
(00029022) COMCTL32.DLL
(00028EF7) COMCTL32.DLL
(0003F498) COMCTL32.DLL
(0003CFD9) USER32.dll
(00034025) USER32.dll
(00033702) USER32.dll
(00031896) USER32.dll.CallWindowProcW
(0027A056) Vcl::Controls::TWinControl::DefaultHandler
(00279F45) Vcl::Controls::TWinControl::WndProc
(002B0296) Vcl::Comctrls::TCustomTreeView::WndProc
(003A4BA8) System::Classes::_18201
(0003CFD9) USER32.dll
(00034025) USER32.dll
(00033C25) USER32.dll
(000377ED) USER32.dll
(000729AB) ntdll.dll.KiUserCallbackDispatcher
(00031A3A) USER32.dll.SendMessageW
(00361F33) Winapi::Commctrl::TreeView_SelectItem
(0044A4E9) Customdriveview::TCustomDriveView::CreateWnd
(00278FD6) Vcl::Controls::TWinControl::CreateHandle
(00275401) Vcl::Controls::TControl::WndProc
(00279F45) Vcl::Controls::TWinControl::WndProc
(002B0296) Vcl::Comctrls::TCustomTreeView::WndProc
(00279196) Vcl::Controls::TWinControl::RecreateWnd
(00279F45) Vcl::Controls::TWinControl::WndProc

The problem happens rarely. I cannot reproduce it.

This problem seems to occurr when the computer (Dell M4800) has been put into hibernation, then moved to a different location and then woken up (getting a new IP address).

<Try to describe precise steps that lead to the problem (where do you click, what keys do you press, what do you see, etc.)>
<If relevant, consider attaching a session log file or a screenshot)>

WinSCP 5.17.7

Error message:
Invalid access to memory.

Stack trace:
(002AB7A3) Vcl::Comctrls::TTreeNode::GetTreeView
(000861AF) ntdll.dll
(000729F1) ntdll.dll.KiUserExceptionDispatcher
(0044BDE0) Customdriveview::TCustomDriveView::IterateSubTree
(0045E52E) Driveview::TDriveView::ValidateDirectoryEx
(0044BA71) Customdriveview::TCustomDriveView::ValidateDirectory
(002509CF) Vcl::Extctrls::TTimer::Timer
(003A4BA8) System::Classes::_18201
(0003CFD9) USER32.dll
(00034025) USER32.dll
(00031D85) USER32.dll
(00031B4B) USER32.dll.DispatchMessageW

The problem happens rarely. I cannot reproduce it.

<Try to describe precise steps that lead to the problem (where do you click, what keys do you press, what do you see, etc.)>
<If relevant, consider attaching a session log file or a screenshot)>

WinSCP 5.17.7

Error message:
Ошибка доступа к памяти.

Трассировка стека:
(002AB7A3) Vcl::Comctrls::TTreeNode::GetTreeView
(00083FFF) ntdll.dll
(00071931) ntdll.dll.KiUserExceptionDispatcher
(0044BD51) Customdriveview::_16446
(0044BDE0) Customdriveview::TCustomDriveView::IterateSubTree
(0045E52E) Driveview::TDriveView::ValidateDirectoryEx
(0044BA71) Customdriveview::TCustomDriveView::ValidateDirectory
(002509CF) Vcl::Extctrls::TTimer::Timer
(003A4BA8) System::Classes::_18201
(00045359) USER32.dll
(00036297) USER32.dll
(000353D6) USER32.dll
(000351AB) USER32.dll.DispatchMessageW

The problem happens rarely. I cannot reproduce it.

<Try to describe precise steps that lead to the problem (where do you click, what keys do you press, what do you see, etc.)>
<If relevant, consider attaching a session log file or a screenshot)>

WinSCP 5.17.7

Error message:
Invalid access to memory.

Stack trace:
(002AB7A3) Vcl::Comctrls::TTreeNode::GetTreeView
(00087E3F) ntdll.dll
(000732D1) ntdll.dll.KiUserExceptionDispatcher
(0045CA0B) Driveview::TDriveView::RefreshRootNodes
(0045AD8F) Driveview::TDriveView::InternalWndProc
(003A4BA8) System::Classes::_18201
(000435C9) USER32.dll
(000240D7) USER32.dll
(00023229) USER32.dll
(0003A5AF) USER32.dll.DialogBoxIndirectParamAorW
(0003A41F) USER32.dll.DialogBoxIndirectParamAorW
(0003A33D) USER32.dll.DialogBoxIndirectParamAorW
(0003A2F6) USER32.dll.DialogBoxIndirectParamW
(0018AB57) COMCTL32.DLL
(000D6716) COMCTL32.DLL
(000D71F1) COMCTL32.DLL.TaskDialogIndirect
(00361FD2) Winapi::Commctrl::TaskDialogIndirect
(00260B35) Vcl::Dialogs::TCustomTaskDialog::DoExecute
(00260E3D) Vcl::Dialogs::TCustomTaskDialog::Execute
(00262736) Vcl::Dialogs::_16828
(002620C2) Vcl::Dialogs::MessageDlgPosHelp
(0045BE73) Driveview::TDriveView::CanChange
(002AFF72) Vcl::Comctrls::TCustomTreeView::CNNotify
(0044B589) Customdriveview::TCustomDriveView::CNNotify
(00279F45) Vcl::Controls::TWinControl::WndProc
(002B0296) Vcl::Comctrls::TCustomTreeView::WndProc
(0027A0AB) Vcl::Controls::_17076
(00279F45) Vcl::Controls::TWinControl::WndProc
(0027958C) Vcl::Controls::TWinControl::MainWndProc
(003A4BA8) System::Classes::_18201
(000435C9) USER32.dll
(000240D7) USER32.dll
(00023C75) USER32.dll
(0002D2CD) USER32.dll
(0007328B) ntdll.dll.KiUserCallbackDispatcher

The problem happens rarely. I cannot reproduce it.

WinSCP restored after Windows was hibernated. Upon restart, corporate network wasn't available, together with the remote servers.

WinSCP 5.17.7

Error message:
Accesso alla memoria non valido.

Stack trace:
(002AB7A3) Vcl::Comctrls::TTreeNode::GetTreeView
(00087E3F) ntdll.dll
(000732D1) ntdll.dll.KiUserExceptionDispatcher
(0044BD51) Customdriveview::_16446
(0044BD51) Customdriveview::_16446
(0044BD51) Customdriveview::_16446
(0044BD51) Customdriveview::_16446
(0044BD51) Customdriveview::_16446
(0044BDE0) Customdriveview::TCustomDriveView::IterateSubTree
(0045E52E) Driveview::TDriveView::ValidateDirectoryEx
(0044BA71) Customdriveview::TCustomDriveView::ValidateDirectory
(002509CF) Vcl::Extctrls::TTimer::Timer
(003A4BA8) System::Classes::_18201
(000434B9) USER32.dll
(00023FF7) USER32.dll
(00023149) USER32.dll
(00022F2B) USER32.dll.DispatchMessageW

The problem happens rarely. I cannot reproduce it.

Download had finished and WinSCP client was sitting idle. Locally the drive was a network share which it was downloading files to. Clean Windows 10 Ent N. v2004 Installed clean on 09/17/2020

WinSCP 5.17.7

Error message:
Invalid access to memory.

Stack trace:
(002AB7A3) Vcl::Comctrls::TTreeNode::GetTreeView
(000861AF) ntdll.dll
(000729F1) ntdll.dll.KiUserExceptionDispatcher
(0044BDE0) Customdriveview::TCustomDriveView::IterateSubTree
(0045E52E) Driveview::TDriveView::ValidateDirectoryEx
(0044BA71) Customdriveview::TCustomDriveView::ValidateDirectory
(0045C1B5) Driveview::TDriveView::Change
(002AFFDA) Vcl::Comctrls::TCustomTreeView::CNNotify
(0044B589) Customdriveview::TCustomDriveView::CNNotify
(00279F45) Vcl::Controls::TWinControl::WndProc
(002B0296) Vcl::Comctrls::TCustomTreeView::WndProc
(0027A0AB) Vcl::Controls::_17076
(00279F45) Vcl::Controls::TWinControl::WndProc
(0027958C) Vcl::Controls::TWinControl::MainWndProc
(003A4BA8) System::Classes::_18201
(0003CFD9) USER32.dll
(00034025) USER32.dll
(00033C25) USER32.dll
(000377ED) USER32.dll
(000729AB) ntdll.dll.KiUserCallbackDispatcher
(00031A3A) USER32.dll.SendMessageW
(0002B984) atcuf32.dll
(00003C3A)atcuf32.dll
(00029022) COMCTL32.DLL
(00028EF7) COMCTL32.DLL
(0003F498) COMCTL32.DLL
(0003CFD9) USER32.dll
(00034025) USER32.dll
(00033702) USER32.dll
(00031896) USER32.dll.CallWindowProcW
(0027A056) Vcl::Controls::TWinControl::DefaultHandler
(00279F45) Vcl::Controls::TWinControl::WndProc
(002B0296) Vcl::Comctrls::TCustomTreeView::WndProc
(003A4BA8) System::Classes::_18201
(0003CFD9) USER32.dll
(00034025) USER32.dll
(00033C25) USER32.dll
(000377ED) USER32.dll
(000729AB) ntdll.dll.KiUserCallbackDispatcher
(00031A3A) USER32.dll.SendMessageW
(0002B984) atcuf32.dll
(00003C3A)atcuf32.dll
(0044A4E9) Customdriveview::TCustomDriveView::CreateWnd
(00278FD6) Vcl::Controls::TWinControl::CreateHandle
(00275401) Vcl::Controls::TControl::WndProc
(00279F45) Vcl::Controls::TWinControl::WndProc
(002B0296) Vcl::Comctrls::TCustomTreeView::WndProc
(00279196) Vcl::Controls::TWinControl::RecreateWnd
(00279F45) Vcl::Controls::TWinControl::WndProc

The problem happens rarely. I cannot reproduce it.

<Try to describe precise steps that lead to the problem (where do you click, what keys do you press, what do you see, etc.)>
<If relevant, consider attaching a session log file or a screenshot)>

WinSCP 5.17.7

Error message:
Invalid access to memory.

Stack trace:
(002AB7A3) Vcl::Comctrls::TTreeNode::GetTreeView
(00087E3F) ntdll.dll
(000732D1) ntdll.dll.KiUserExceptionDispatcher
(0044BD51) Customdriveview::_16446
(0044BD51) Customdriveview::_16446
(0044BD51) Customdriveview::_16446
(0044BD51) Customdriveview::_16446
(0044BD51) Customdriveview::_16446
(0044BD51) Customdriveview::_16446
(0044BDE0) Customdriveview::TCustomDriveView::IterateSubTree
(0045E52E) Driveview::TDriveView::ValidateDirectoryEx
(0044BA71) Customdriveview::TCustomDriveView::ValidateDirectory
(002509CF) Vcl::Extctrls::TTimer::Timer
(003A4BA8) System::Classes::_18201
(000435C9) USER32.dll
(000240D7) USER32.dll
(00023229) USER32.dll
(0002300B) USER32.dll.DispatchMessageW

The problem happens rarely. I cannot reproduce it.

I left WindSCP running overnight, and the LH pane was displaying a shared network drive.

I suspect that host have rebooted overnight, so the drive would have gone missing briefly.


WinSCP 5.17.7

Error message:
Invalid access to memory.

Stack trace:
(002AB7A3) Vcl::Comctrls::TTreeNode::GetTreeView
(000861AF) ntdll.dll
(000729F1) ntdll.dll.KiUserExceptionDispatcher
(0044BDE0) Customdriveview::TCustomDriveView::IterateSubTree
(0045E52E) Driveview::TDriveView::ValidateDirectoryEx
(0044BA71) Customdriveview::TCustomDriveView::ValidateDirectory
(0045C1B5) Driveview::TDriveView::Change
(002AFFDA) Vcl::Comctrls::TCustomTreeView::CNNotify
(0044B589) Customdriveview::TCustomDriveView::CNNotify
(00279F45) Vcl::Controls::TWinControl::WndProc
(002B0296) Vcl::Comctrls::TCustomTreeView::WndProc
(0027A0AB) Vcl::Controls::_17076
(00279F45) Vcl::Controls::TWinControl::WndProc
(0027958C) Vcl::Controls::TWinControl::MainWndProc
(003A4BA8) System::Classes::_18201
(0003CFD9) USER32.dll
(00034025) USER32.dll
(00033C25) USER32.dll
(000377ED) USER32.dll
(000729AB) ntdll.dll.KiUserCallbackDispatcher
(00031A3A) USER32.dll.SendMessageW
(00069321) COMCTL32.DLL
(00029022) COMCTL32.DLL
(00028EF7) COMCTL32.DLL
(0003F498) COMCTL32.DLL
(0003CFD9) USER32.dll
(00034025) USER32.dll
(00033702) USER32.dll
(00031896) USER32.dll.CallWindowProcW
(0027A056) Vcl::Controls::TWinControl::DefaultHandler
(00279F45) Vcl::Controls::TWinControl::WndProc
(002B0296) Vcl::Comctrls::TCustomTreeView::WndProc
(003A4BA8) System::Classes::_18201
(0003CFD9) USER32.dll
(00034025) USER32.dll
(00033C25) USER32.dll
(000377ED) USER32.dll
(000729AB) ntdll.dll.KiUserCallbackDispatcher
(00031A3A) USER32.dll.SendMessageW
(00361F33) Winapi::Commctrl::TreeView_SelectItem
(0044A4E9) Customdriveview::TCustomDriveView::CreateWnd
(00278FD6) Vcl::Controls::TWinControl::CreateHandle
(00275401) Vcl::Controls::TControl::WndProc
(00279F45) Vcl::Controls::TWinControl::WndProc
(002B0296) Vcl::Comctrls::TCustomTreeView::WndProc
(00279196) Vcl::Controls::TWinControl::RecreateWnd
(00279F45) Vcl::Controls::TWinControl::WndProc

The problem happens rarely. I cannot reproduce it.

<Try to describe precise steps that lead to the problem (where do you click, what keys do you press, what do you see, etc.)>
<If relevant, consider attaching a session log file or a screenshot)>

WinSCP 5.17.7

Error message:
Invalid access to memory.

Stack trace:
(002AB7A3) Vcl::Comctrls::TTreeNode::GetTreeView
(00087E3F) ntdll.dll
(000732D1) ntdll.dll.KiUserExceptionDispatcher
(0044BD51) Customdriveview::_16446
(0044BD51) Customdriveview::_16446
(0044BD51) Customdriveview::_16446
(0044BD51) Customdriveview::_16446
(0044BD51) Customdriveview::_16446
(0044BD51) Customdriveview::_16446
(0044BDE0) Customdriveview::TCustomDriveView::IterateSubTree
(0045E52E) Driveview::TDriveView::ValidateDirectoryEx
(0044BA71) Customdriveview::TCustomDriveView::ValidateDirectory
(002509CF) Vcl::Extctrls::TTimer::Timer
(003A4BA8) System::Classes::_18201
(000435C9) USER32.dll
(000240D7) USER32.dll
(00023229) USER32.dll
(0002300B) USER32.dll.DispatchMessageW

The problem happens rarely. I cannot reproduce it.

Error poped up just after resuming PC from sleep. I cannot tell whether the session was disconnected or not when PC was put asleep. Issue seen for the first time, didn't happen so far under similar conditions.

WinSCP 5.17.7

Error message:
Invalid access to memory.

Stack trace:
(002AB7A3) Vcl::Comctrls::TTreeNode::GetTreeView
(00087D6F) ntdll.dll
(00073211) ntdll.dll.KiUserExceptionDispatcher
(0044BD51) Customdriveview::_16446
(0044BD51) Customdriveview::_16446
(0044BD51) Customdriveview::_16446
(0044BD51) Customdriveview::_16446
(0044BD51) Customdriveview::_16446
(0044BDE0) Customdriveview::TCustomDriveView::IterateSubTree
(0045E52E) Driveview::TDriveView::ValidateDirectoryEx
(0044BA71) Customdriveview::TCustomDriveView::ValidateDirectory
(002509CF) Vcl::Extctrls::TTimer::Timer
(003A4BA8) System::Classes::_18201
(00043749) USER32.dll
(000250B7) USER32.dll
(00024209) USER32.dll
(00023FCB) USER32.dll.DispatchMessageW

The problem happens rarely. I cannot reproduce it.

Computer was idle, not doing anything (NO Windows-sleep/hybernate mode activated).


WinSCP 5.17.7

Error message:
Invalid access to memory.

Stack trace:
(002AB7A3) Vcl::Comctrls::TTreeNode::GetTreeView
(000861AF) ntdll.dll
(000729F1) ntdll.dll.KiUserExceptionDispatcher
(0044BDE0) Customdriveview::TCustomDriveView::IterateSubTree
(0045E52E) Driveview::TDriveView::ValidateDirectoryEx
(0044BA71) Customdriveview::TCustomDriveView::ValidateDirectory
(0045C1B5) Driveview::TDriveView::Change
(002AFFDA) Vcl::Comctrls::TCustomTreeView::CNNotify
(0044B589) Customdriveview::TCustomDriveView::CNNotify
(00279F45) Vcl::Controls::TWinControl::WndProc
(002B0296) Vcl::Comctrls::TCustomTreeView::WndProc
(0027A0AB) Vcl::Controls::_17076
(00279F45) Vcl::Controls::TWinControl::WndProc
(0027958C) Vcl::Controls::TWinControl::MainWndProc
(003A4BA8) System::Classes::_18201
(0003CFD9) USER32.dll
(00034025) USER32.dll
(00033C25) USER32.dll
(000377ED) USER32.dll
(000729AB) ntdll.dll.KiUserCallbackDispatcher
(00031A3A) USER32.dll.SendMessageW
(00069321) COMCTL32.DLL
(00029022) COMCTL32.DLL
(00028EF7) COMCTL32.DLL
(0003F498) COMCTL32.DLL
(0003CFD9) USER32.dll
(00034025) USER32.dll
(00033702) USER32.dll
(00031896) USER32.dll.CallWindowProcW
(0027A056) Vcl::Controls::TWinControl::DefaultHandler
(00279F45) Vcl::Controls::TWinControl::WndProc
(002B0296) Vcl::Comctrls::TCustomTreeView::WndProc
(003A4BA8) System::Classes::_18201
(0003CFD9) USER32.dll
(00034025) USER32.dll
(00033C25) USER32.dll
(000377ED) USER32.dll
(000729AB) ntdll.dll.KiUserCallbackDispatcher
(00031A3A) USER32.dll.SendMessageW
(00361F33) Winapi::Commctrl::TreeView_SelectItem
(0044A4E9) Customdriveview::TCustomDriveView::CreateWnd
(00278FD6) Vcl::Controls::TWinControl::CreateHandle
(00275401) Vcl::Controls::TControl::WndProc
(00279F45) Vcl::Controls::TWinControl::WndProc
(002B0296) Vcl::Comctrls::TCustomTreeView::WndProc
(00279196) Vcl::Controls::TWinControl::RecreateWnd
(00279F45) Vcl::Controls::TWinControl::WndProc

The problem happens rarely. I cannot reproduce it.

<Try to describe precise steps that lead to the problem (where do you click, what keys do you press, what do you see, etc.)>
<If relevant, consider attaching a session log file or a screenshot)>

WinSCP 5.17.7

Error message:
Accesso alla memoria non valido.

Stack trace:
(002AB7A3) Vcl::Comctrls::TTreeNode::GetTreeView
(00087E3F) ntdll.dll
(000732D1) ntdll.dll.KiUserExceptionDispatcher
(0044BD51) Customdriveview::_16446
(0044BD51) Customdriveview::_16446
(0044BDE0) Customdriveview::TCustomDriveView::IterateSubTree
(0045E52E) Driveview::TDriveView::ValidateDirectoryEx
(0044BA71) Customdriveview::TCustomDriveView::ValidateDirectory
(002509CF) Vcl::Extctrls::TTimer::Timer
(003A4BA8) System::Classes::_18201
(000434B9) USER32.dll
(00023FF7) USER32.dll
(00023149) USER32.dll
(00022F2B) USER32.dll.DispatchMessageW

The problem happens rarely. I cannot reproduce it.

<Try to describe precise steps that lead to the problem (where do you click, what keys do you press, what do you see, etc.)>
<If relevant, consider attaching a session log file or a screenshot)>

No idea what happened, went away for a cup of tea and came back to this error.

WinSCP 5.17.7

Error message:
Invalid access to memory.

Stack trace:
(002AB7A3) Vcl::Comctrls::TTreeNode::GetTreeView
(00087E3F) ntdll.dll
(000732D1) ntdll.dll.KiUserExceptionDispatcher
(0044BD51) Customdriveview::_16446
(0044BD51) Customdriveview::_16446
(0044BD51) Customdriveview::_16446
(0044BDE0) Customdriveview::TCustomDriveView::IterateSubTree
(0045E52E) Driveview::TDriveView::ValidateDirectoryEx
(0044BA71) Customdriveview::TCustomDriveView::ValidateDirectory
(002509CF) Vcl::Extctrls::TTimer::Timer
(003A4BA8) System::Classes::_18201
(000435C9) USER32.dll
(000240D7) USER32.dll
(00023229) USER32.dll
(0002300B) USER32.dll.DispatchMessageW

The problem happens rarely. I cannot reproduce it.

<Try to describe precise steps that lead to the problem (where do you click, what keys do you press, what do you see, etc.)>
<If relevant, consider attaching a session log file or a screenshot)>

WinSCP 5.17.7

Error message:
Acesso inválido à memória

Rastreamento de pilha:
(002AB7A3) Vcl::Comctrls::TTreeNode::GetTreeView
(00087E3F) ntdll.dll
(000732D1) ntdll.dll.KiUserExceptionDispatcher
(0044BD51) Customdriveview::_16446
(0044BD51) Customdriveview::_16446
(0044BD51) Customdriveview::_16446
(0044BD51) Customdriveview::_16446
(0044BD51) Customdriveview::_16446
(0044BD51) Customdriveview::_16446
(0044BD51) Customdriveview::_16446
(0044BD51) Customdriveview::_16446
(0044BDE0) Customdriveview::TCustomDriveView::IterateSubTree
(0045E52E) Driveview::TDriveView::ValidateDirectoryEx
(0044BA71) Customdriveview::TCustomDriveView::ValidateDirectory
(002509CF) Vcl::Extctrls::TTimer::Timer
(003A4BA8) System::Classes::_18201
(000435C9) USER32.dll
(000240D7) USER32.dll
(00023229) USER32.dll
(0002300B) USER32.dll.DispatchMessageW

The problem happens rarely. I cannot reproduce it.

Computer was being accessed over RDP. Went into locked state and found this error on the screen the next morning. WinSCP has locked up a couple times in this scenario, but this is the first time I've seen the error message.

WinSCP 5.17.7

Error message:
Invalid access to memory.

Stack trace:
(002AB7A3) Vcl::Comctrls::TTreeNode::GetTreeView
(00087E3F) ntdll.dll
(000732D1) ntdll.dll.KiUserExceptionDispatcher
(0044BDE0) Customdriveview::TCustomDriveView::IterateSubTree
(0045E52E) Driveview::TDriveView::ValidateDirectoryEx
(0044BA71) Customdriveview::TCustomDriveView::ValidateDirectory
(002509CF) Vcl::Extctrls::TTimer::Timer
(003A4BA8) System::Classes::_18201
(000435C9) USER32.dll
(000240D7) USER32.dll
(00023229) USER32.dll
(0002300B) USER32.dll.DispatchMessageW

The problem happens rarely. I cannot reproduce it.

<Try to describe precise steps that lead to the problem (where do you click, what keys do you press, what do you see, etc.)>
<If relevant, consider attaching a session log file or a screenshot)>

WinSCP 5.17.7

Error message:
Invalid access to memory.

Stack trace:
(002AB7A3) Vcl::Comctrls::TTreeNode::GetTreeView
(00087E3F) ntdll.dll
(000732D1) ntdll.dll.KiUserExceptionDispatcher
(0044BD51) Customdriveview::_16446
(0044BD51) Customdriveview::_16446
(0044BD51) Customdriveview::_16446
(0044BD51) Customdriveview::_16446
(0044BDE0) Customdriveview::TCustomDriveView::IterateSubTree
(0045E52E) Driveview::TDriveView::ValidateDirectoryEx
(0044BA71) Customdriveview::TCustomDriveView::ValidateDirectory
(002509CF) Vcl::Extctrls::TTimer::Timer
(003A4BA8) System::Classes::_18201
(000435C9) USER32.dll
(000240D7) USER32.dll
(00023229) USER32.dll
(0002300B) USER32.dll.DispatchMessageW

The problem happens rarely. I cannot reproduce it.

<Try to describe precise steps that lead to the problem (where do you click, what keys do you press, what do you see, etc.)>
<If relevant, consider attaching a session log file or a screenshot)>

WinSCP 5.17.7

Error message:
Invalid access to memory.

Stack trace:
(002AB7A3) Vcl::Comctrls::TTreeNode::GetTreeView
(00087E3F) ntdll.dll
(000732D1) ntdll.dll.KiUserExceptionDispatcher
(0044BD51) Customdriveview::_16446
(0044BD51) Customdriveview::_16446
(0044BD51) Customdriveview::_16446
(0044BDE0) Customdriveview::TCustomDriveView::IterateSubTree
(0045E52E) Driveview::TDriveView::ValidateDirectoryEx
(0044BA71) Customdriveview::TCustomDriveView::ValidateDirectory
(002509CF) Vcl::Extctrls::TTimer::Timer
(003A4BA8) System::Classes::_18201
(00043519) USER32.dll
(00024047) USER32.dll
(00023199) USER32.dll
(00022F7B) USER32.dll.DispatchMessageW

The problem happens rarely. I cannot reproduce it.

<Try to describe precise steps that lead to the problem (where do you click, what keys do you press, what do you see, etc.)>
<If relevant, consider attaching a session log file or a screenshot)>

WinSCP 5.17.8

Error message:
Acesso inválido à memória

Rastreamento de pilha:
(002AC4BF) Vcl::Comctrls::TTreeNode::GetTreeView
(000861AF) ntdll.dll
(00072B31) ntdll.dll.KiUserExceptionDispatcher
(0044CA6D) Customdriveview::_16446
(0044CA6D) Customdriveview::_16446
(0044CA6D) Customdriveview::_16446
(0044CA6D) Customdriveview::_16446
(0044CA6D) Customdriveview::_16446
(0044CA6D) Customdriveview::_16446
(0044CAFC) Customdriveview::TCustomDriveView::IterateSubTree
(0045F24A) Driveview::TDriveView::ValidateDirectoryEx
(0044C78D) Customdriveview::TCustomDriveView::ValidateDirectory
(002516EB) Vcl::Extctrls::TTimer::Timer
(003A58C4) System::Classes::_18201
(0003DD09) USER32.dll
(00034C95) USER32.dll
(00032A05) USER32.dll
(000327CB) USER32.dll.DispatchMessageW

The problem happens rarely. I cannot reproduce it.

<Try to describe precise steps that lead to the problem (where do you click, what keys do you press, what do you see, etc.)>
<If relevant, consider attaching a session log file or a screenshot)>

WinSCP 5.17.7

Error message:
メモリのアクセス違反

スタック トレース:
(002AB7A3) Vcl::Comctrls::TTreeNode::GetTreeView
(00087E3F) ntdll.dll
(000732D1) ntdll.dll.KiUserExceptionDispatcher
(0045D6FE) Driveview::_16498
(0045D628) Driveview::_16497
(0045D72D) Driveview::_16498
(0045D628) Driveview::_16497
(0045D6FE) Driveview::_16498
(0045D628) Driveview::_16497
(0045D72D) Driveview::_16498
(0045D909) Driveview::TDriveView::FindNodeToPath
(0045F3D5) Driveview::TDriveView::FindPathNode
(0044BF7A) Customdriveview::TCustomDriveView::SetDirectory
(0045F482) Driveview::TDriveView::SetDirectory
(0044F551) Dirview::TDirView::SetPath
(000170B4) TCustomScpExplorerForm::OpenBookmark
(000525F1) TScpCommanderForm::OpenBookmark
(0002B2CD) TCustomScpExplorerForm::DoBookmarkClick
(003A4BA8) System::Classes::_18201
(000435C9) USER32.dll
(000240D7) USER32.dll
(00023229) USER32.dll
(0002300B) USER32.dll.DispatchMessageW

The problem happens rarely. I cannot reproduce it.

I was opening a browser window when this showed up. Checked task manager which reported Memory at 55%. This could possibly an issue with my computer as I get periodic unresponsiveness.

Let me know if you need anything further.

Marty
PS. Love the product!

WinSCP 5.17.8

Error message:
Invalid access to memory.

Stack trace:
(002AC4BF) Vcl::Comctrls::TTreeNode::GetTreeView
(000861AF) ntdll.dll
(00072B31) ntdll.dll.KiUserExceptionDispatcher
(0044CA6D) Customdriveview::_16446
(0044CA6D) Customdriveview::_16446
(0044CAFC) Customdriveview::TCustomDriveView::IterateSubTree
(0045F24A) Driveview::TDriveView::ValidateDirectoryEx
(0044C78D) Customdriveview::TCustomDriveView::ValidateDirectory
(002516EB) Vcl::Extctrls::TTimer::Timer
(003A58C4) System::Classes::_18201
(0003DD09) USER32.dll
(00034C95) USER32.dll
(00032A05) USER32.dll
(000327CB) USER32.dll.DispatchMessageW

The problem happens rarely. I cannot reproduce it.

<Try to describe precise steps that lead to the problem (where do you click, what keys do you press, what do you see, etc.)>
<If relevant, consider attaching a session log file or a screenshot)>

WinSCP 5.17.6

Error message:
Invalid access to memory.

Stack trace:
(002AB6C3)
(0008422F) ntdll.dll
(00071B31) ntdll.dll.KiUserExceptionDispatcher
(0044BC05)
(0044BC05)
(0044BC94)
(0045E3CA)
(0044B925)
(002508EF)
(003A4AC8)
(00044CA9) USER32.dll
(000357B7) USER32.dll
(000348F6) USER32.dll
(000346CB) USER32.dll.DispatchMessageW

The problem happens rarely. I cannot reproduce it.

<Try to describe precise steps that lead to the problem (where do you click, what keys do you press, what do you see, etc.)>
<If relevant, consider attaching a session log file or a screenshot)>

WinSCP 5.17.8

Error message:
Unzulässiger Zugriff auf einen Speicherbereich.

Stapelverfolgung:
(002AC4BF) Vcl::Comctrls::TTreeNode::GetTreeView
(00087D7F) ntdll.dll
(00073221) ntdll.dll.KiUserExceptionDispatcher
(0044CA6D) Customdriveview::_16446
(0044CAFC) Customdriveview::TCustomDriveView::IterateSubTree
(0045F24A) Driveview::TDriveView::ValidateDirectoryEx
(0044C78D) Customdriveview::TCustomDriveView::ValidateDirectory
(002516EB) Vcl::Extctrls::TTimer::Timer
(003A58C4) System::Classes::_18201
(00043389) USER32.dll
(00023F87) USER32.dll
(000230D9) USER32.dll
(00022EBB) USER32.dll.DispatchMessageW

The problem happens rarely. I cannot reproduce it.