<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 5.19.2

Error message:
Invalid access to memory.

Stack trace:
(002B1AB3) Vcl::Comctrls::TTreeNode::GetTreeView
(0008223F) ntdll.dll
(0006FDBA) ntdll.dll.KiUserExceptionDispatcher
(0046EA95) Customdriveview::_16446
(0046EA95) Customdriveview::_16446
(0046EA95) Customdriveview::_16446
(0046EB24) Customdriveview::TCustomDriveView::IterateSubTree
(00481082) Driveview::TDriveView::ValidateDirectoryEx
(0046E7B5) Customdriveview::TCustomDriveView::ValidateDirectory
(00256CDF) Vcl::Extctrls::TTimer::Timer
(003C79D8) System::Classes::_18201
(0002C2D1) 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 5.19.2

Error message:
Invalid access to memory.

Stack trace:
(002B1AB3) Vcl::Comctrls::TTreeNode::GetTreeView
(0009571F) ntdll.dll
(00076161) ntdll.dll.KiUserExceptionDispatcher
(0046EA95) Customdriveview::_16446
(0046EA95) Customdriveview::_16446
(0046EA95) Customdriveview::_16446
(0046EB24) Customdriveview::TCustomDriveView::IterateSubTree
(00481082) Driveview::TDriveView::ValidateDirectoryEx
(0046E7B5) Customdriveview::TCustomDriveView::ValidateDirectory
(00256CDF) Vcl::Extctrls::TTimer::Timer
(003C79D8) System::Classes::_18201
(00031991) USER32.dll
(00022C07) USER32.dll
(00021510) USER32.dll
(0002106B) 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 5.19.2

Error message:
Unzulässiger Zugriff auf einen Speicherbereich.

Stapelverfolgung:
(002B1AB3) Vcl::Comctrls::TTreeNode::GetTreeView
(000878AF) ntdll.dll
(00073EE1) ntdll.dll.KiUserExceptionDispatcher
(0046EA95) Customdriveview::_16446
(0046EA95) Customdriveview::_16446
(0046EB24) Customdriveview::TCustomDriveView::IterateSubTree
(00481082) Driveview::TDriveView::ValidateDirectoryEx
(0046E7B5) Customdriveview::TCustomDriveView::ValidateDirectory
(00256CDF) Vcl::Extctrls::TTimer::Timer
(003C79D8) System::Classes::_18201
(00042399) USER32.dll
(00039335) USER32.dll
(00037095) USER32.dll
(00036E5B) USER32.dll.DispatchMessageW

The problem happens rarely. I cannot reproduce it.

Winscp left connected to a raspberry pi session on local network overnight. I Refreshed the remote file list and then refocused on other windows. When I returned to WinSCP, error dialogue box was seen.
Edition Windows 11 Pro
Version 21H2
Installed on ‎30/‎12/‎2021
OS build 22000.434
Experience Windows Feature Experience Pack 1000.22000.434.0

WinSCP 5.19.5

Error message:
Invalid access to memory.

Stack trace:
(002B1C3F) Vcl::Comctrls::TTreeNode::GetTreeView
(000975BF) ntdll.dll
(00075CA1) ntdll.dll.KiUserExceptionDispatcher
(0046EC21) Customdriveview::_16446
(0046EC21) Customdriveview::_16446
(0046ECB0) Customdriveview::TCustomDriveView::IterateSubTree
(0048120E) Driveview::TDriveView::ValidateDirectoryEx
(0046E941) Customdriveview::TCustomDriveView::ValidateDirectory
(00256E6B) Vcl::Extctrls::TTimer::Timer
(003C7B64) System::Classes::_18201
(00046DD0) USER32.dll
(00026275) USER32.dll
(00024BA3) USER32.dll
(000246DB) USER32.dll.DispatchMessageW

The problem happens rarely. I cannot reproduce it.

Normal usage, nothing special. Message showed up during inactivity.

WinSCP 5.19.5

Error message:
Invalid access to memory.

Stack trace:
(002B1C3F) Vcl::Comctrls::TTreeNode::GetTreeView
(000878AF) ntdll.dll
(00073EE1) ntdll.dll.KiUserExceptionDispatcher
(0046EC21) Customdriveview::_16446
(0046EC21) Customdriveview::_16446
(0046EC21) Customdriveview::_16446
(0046ECB0) Customdriveview::TCustomDriveView::IterateSubTree
(0048120E) Driveview::TDriveView::ValidateDirectoryEx
(0046E941) Customdriveview::TCustomDriveView::ValidateDirectory
(00256E6B) Vcl::Extctrls::TTimer::Timer
(003C7B64) System::Classes::_18201
(00042399) USER32.dll
(00039335) USER32.dll
(00037095) USER32.dll
(00036E5B) 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 5.19.5

Error message:
Invalid access to memory.

Stack trace:
(002B1C3F) Vcl::Comctrls::TTreeNode::GetTreeView
(000878AF) ntdll.dll
(00073EE1) ntdll.dll.KiUserExceptionDispatcher
(0046EC21) Customdriveview::_16446
(0046EC21) Customdriveview::_16446
(0046EC21) Customdriveview::_16446
(0046EC21) Customdriveview::_16446
(0046ECB0) Customdriveview::TCustomDriveView::IterateSubTree
(0048120E) Driveview::TDriveView::ValidateDirectoryEx
(0046E941) Customdriveview::TCustomDriveView::ValidateDirectory
(00256E6B) Vcl::Extctrls::TTimer::Timer
(003C7B64) System::Classes::_18201
(0000B27E) VdmInj32.dll
(0000B91D) VdmInj32.dll
(00039335) USER32.dll
(00037095) USER32.dll
(00036E5B) 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 5.19.2

Error message:
Invalid access to memory.

Stack trace:
(002B1AB3) Vcl::Comctrls::TTreeNode::GetTreeView
(0008544F) ntdll.dll
(00072A01) ntdll.dll.KiUserExceptionDispatcher
(0046EA95) Customdriveview::_16446
(0046EA95) Customdriveview::_16446
(0046EA95) Customdriveview::_16446
(0046EB24) Customdriveview::TCustomDriveView::IterateSubTree
(00481082) Driveview::TDriveView::ValidateDirectoryEx
(0046E7B5) Customdriveview::TCustomDriveView::ValidateDirectory
(00256CDF) Vcl::Extctrls::TTimer::Timer
(003C79D8) System::Classes::_18201
(00044CB9) USER32.dll
(000357D7) USER32.dll
(00034916) USER32.dll
(000346EB) USER32.dll.DispatchMessageW

The problem happens rarely. I cannot reproduce it.

Problems started today..trying to select files from local directory to upload to computecanada cluster and the directory listing kept moving..could not select a range of files because of the movement. Restarted computer and got that error message. I will try re-installing winscp

<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 5.19.5

Error message:
Invalid access to memory.

Stack trace:
(002B1C3F) Vcl::Comctrls::TTreeNode::GetTreeView
(000878AF) ntdll.dll
(00073EE1) ntdll.dll.KiUserExceptionDispatcher
(002B2298) Vcl::Comctrls::TTreeNode::Expand
(002B6476) Vcl::Comctrls::TCustomTreeView::CNNotify
(0046E459) Customdriveview::TCustomDriveView::CNNotify
(002803E1) Vcl::Controls::TWinControl::WndProc
(002B6732) Vcl::Comctrls::TCustomTreeView::WndProc
(00280547) Vcl::Controls::_17076
(002803E1) Vcl::Controls::TWinControl::WndProc
(0027FA28) Vcl::Controls::TWinControl::MainWndProc
(003C7B64) System::Classes::_18201
(00042399) USER32.dll
(00039335) USER32.dll
(00038F25) USER32.dll
(0003CAFD) USER32.dll
(00073E9B) ntdll.dll.KiUserCallbackDispatcher
(00036D4A) USER32.dll.SendMessageW
(00068881) COMCTL32.DLL
(00028892) COMCTL32.DLL
(00028767) COMCTL32.DLL
(0003EC58) COMCTL32.DLL
(00042399) USER32.dll
(00039335) USER32.dll
(00038A02) USER32.dll
(00036BA6) USER32.dll.CallWindowProcW
(002804F2) Vcl::Controls::TWinControl::DefaultHandler
(002803E1) Vcl::Controls::TWinControl::WndProc
(002B6732) Vcl::Comctrls::TCustomTreeView::WndProc
(003C7B64) System::Classes::_18201
(00042399) USER32.dll
(00039335) USER32.dll
(00038A02) USER32.dll
(00036BA6) USER32.dll.CallWindowProcW
(0049E76B) Dragdrop::TDragDrop::WndMethod
(003C7B64) System::Classes::_18201
(00042399) USER32.dll
(00039335) USER32.dll
(00038F25) USER32.dll
(0003CAFD) USER32.dll
(00073E9B) ntdll.dll.KiUserCallbackDispatcher
(00036D4A) USER32.dll.SendMessageW
(0038503B) Winapi::Commctrl::TreeView_SelectItem
(00481D4E) Driveview::TDriveView::SetDirectory
(00472506) Dirview::TDirView::SetPath
(0005164C) TScpCommanderForm::LocalDefaultDirectory
(00051330) TScpCommanderForm::StartingDisconnected
(00028A53) TCustomScpExplorerForm::CMShowingChanged
(000288E3) TCustomScpExplorerForm::Dispatch
(002803E1) Vcl::Controls::TWinControl::WndProc
(0023A8A8) Vcl::Forms::TCustomForm::WndProc
(00E7D748) Vclcommon::C2990_0

(002B1C3F) Vcl::Comctrls::TTreeNode::GetTreeView
(000878AF) ntdll.dll
(00073EE1) ntdll.dll.KiUserExceptionDispatcher
(002B2298) Vcl::Comctrls::TTreeNode::Expand
(002B6476) Vcl::Comctrls::TCustomTreeView::CNNotify
(0046E459) Customdriveview::TCustomDriveView::CNNotify
(002803E1) Vcl::Controls::TWinControl::WndProc
(002B6732) Vcl::Comctrls::TCustomTreeView::WndProc
(00280547) Vcl::Controls::_17076
(002803E1) Vcl::Controls::TWinControl::WndProc
(0027FA28) Vcl::Controls::TWinControl::MainWndProc
(003C7B64) System::Classes::_18201
(00042399) USER32.dll
(00039335) USER32.dll
(00038F25) USER32.dll
(0003CAFD) USER32.dll
(00073E9B) ntdll.dll.KiUserCallbackDispatcher
(00036D4A) USER32.dll.SendMessageW
(00068881) COMCTL32.DLL
(00028892) COMCTL32.DLL
(00028767) COMCTL32.DLL
(0003EC58) COMCTL32.DLL
(00042399) USER32.dll
(00039335) USER32.dll
(00038A02) USER32.dll

The problem happens rarely. I cannot reproduce it.

App was idle for 4-6 hours following 500GB+ background transfer. Left it in background and it crashed after about 15 min of surfing the web in Firefox. The only other activity before the crash was opening a single This PC explorer window to check HD capacities.

<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 5.20

Error message:
Invalid access to memory.

Stack trace:
(002B112B) Vcl::Comctrls::TTreeNode::GetTreeView
(000878AF) ntdll.dll
(00073EE1) ntdll.dll.KiUserExceptionDispatcher
(0046E5C1) Customdriveview::_16446
(0046E5C1) Customdriveview::_16446
(0046E5C1) Customdriveview::_16446
(0046E650) Customdriveview::TCustomDriveView::IterateSubTree
(00480BAE) Driveview::TDriveView::ValidateDirectoryEx
(0046E2E1) Customdriveview::TCustomDriveView::ValidateDirectory
(00256357) Vcl::Extctrls::TTimer::Timer
(003C7050) System::Classes::_18201
(00042399) USER32.dll
(00039335) USER32.dll
(00037095) USER32.dll
(00036E5B) 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 5.19.4

Error message:
Invalid access to memory.

Stack trace:
(002B1B73) Vcl::Comctrls::TTreeNode::GetTreeView
(0008544F) ntdll.dll
(00072A01) ntdll.dll.KiUserExceptionDispatcher
(0046EB55) Customdriveview::_16446
(0046EBE4) Customdriveview::TCustomDriveView::IterateSubTree
(00481142) Driveview::TDriveView::ValidateDirectoryEx
(0046E875) Customdriveview::TCustomDriveView::ValidateDirectory
(00256D9F) Vcl::Extctrls::TTimer::Timer
(003C7A98) System::Classes::_18201
(00044CB9) USER32.dll
(000357D7) USER32.dll
(00034916) USER32.dll
(000346EB) USER32.dll.DispatchMessageW

The problem happens rarely. I cannot reproduce it.

jim.saiya@... wrote:

Same as last error.

Here is the error:
I leave WinSCP running connected to one or more servers when I shut my laptop. Currently there were two servers connected. Last night, I was using my computer as a laptop, which has different screen dimensions than my desktop monitor. This morning when I woke the computer with it connected to the monitor, the error occurred. I don't think I even clicked on the app. Other than that, nothing unusual.

WinSCP 5.19.5

Error message:
Invalid access to memory.

Stack trace:
(002B1C3F) Vcl::Comctrls::TTreeNode::GetTreeView
(000878AF) ntdll.dll
(00073EE1) ntdll.dll.KiUserExceptionDispatcher
(0046EC21) Customdriveview::_16446
(0046EC21) Customdriveview::_16446
(0046EC21) Customdriveview::_16446
(0046EC21) Customdriveview::_16446
(0046EC21) Customdriveview::_16446
(0046EC21) Customdriveview::_16446
(0046EC21) Customdriveview::_16446
(0046EC21) Customdriveview::_16446
(0046EC21) Customdriveview::_16446
(0046EC21) Customdriveview::_16446
(0046EC21) Customdriveview::_16446
(0046EC21) Customdriveview::_16446
(0046EC21) Customdriveview::_16446
(0046ECB0) Customdriveview::TCustomDriveView::IterateSubTree
(0048120E) Driveview::TDriveView::ValidateDirectoryEx
(0046E941) Customdriveview::TCustomDriveView::ValidateDirectory
(00256E6B) Vcl::Extctrls::TTimer::Timer
(003C7B64) System::Classes::_18201
(00042399) USER32.dll
(00039335) USER32.dll
(00037095) USER32.dll
(00036E5B) USER32.dll.DispatchMessageW

The problem happens rarely. I cannot reproduce it.

Same as last error.

WinSCP 5.19.5

Error message:
Invalid access to memory.

Stack trace:
(002B1C3F) Vcl::Comctrls::TTreeNode::GetTreeView
(000878AF) ntdll.dll
(00073EE1) ntdll.dll.KiUserExceptionDispatcher
(0046EC21) Customdriveview::_16446
(0046EC21) Customdriveview::_16446
(0046EC21) Customdriveview::_16446
(0046EC21) Customdriveview::_16446
(0046EC21) Customdriveview::_16446
(0046EC21) Customdriveview::_16446
(0046EC21) Customdriveview::_16446
(0046EC21) Customdriveview::_16446
(0046EC21) Customdriveview::_16446
(0046EC21) Customdriveview::_16446
(0046EC21) Customdriveview::_16446
(0046EC21) Customdriveview::_16446
(0046EC21) Customdriveview::_16446
(0046ECB0) Customdriveview::TCustomDriveView::IterateSubTree
(0048120E) Driveview::TDriveView::ValidateDirectoryEx
(0046E941) Customdriveview::TCustomDriveView::ValidateDirectory
(00256E6B) Vcl::Extctrls::TTimer::Timer
(003C7B64) System::Classes::_18201
(00042399) USER32.dll
(00039335) USER32.dll
(00037095) USER32.dll
(00036E5B) 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 5.19.2

Error message:
Invalid access to memory.

Stack trace:
(002B1AB3) Vcl::Comctrls::TTreeNode::GetTreeView
(000878AF) ntdll.dll
(00073EE1) ntdll.dll.KiUserExceptionDispatcher
(0046EA95) Customdriveview::_16446
(0046EA95) Customdriveview::_16446
(0046EB24) Customdriveview::TCustomDriveView::IterateSubTree
(00481082) Driveview::TDriveView::ValidateDirectoryEx
(0046E7B5) Customdriveview::TCustomDriveView::ValidateDirectory
(00256CDF) Vcl::Extctrls::TTimer::Timer
(003C79D8) System::Classes::_18201
(00042399) USER32.dll
(00039335) USER32.dll
(00037095) USER32.dll
(00036E5B) 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 5.19.4

Error message:
Acceso a memoria no válido

Traza de la pila:
(002B1B73) Vcl::Comctrls::TTreeNode::GetTreeView
(000975BF) ntdll.dll
(00075CA1) ntdll.dll.KiUserExceptionDispatcher
(0046EB55) Customdriveview::_16446
(0046EB55) Customdriveview::_16446
(0046EB55) Customdriveview::_16446
(0046EB55) Customdriveview::_16446
(0046EB55) Customdriveview::_16446
(0046EB55) Customdriveview::_16446
(0046EBE4) Customdriveview::TCustomDriveView::IterateSubTree
(00481142) Driveview::TDriveView::ValidateDirectoryEx
(0046E875) Customdriveview::TCustomDriveView::ValidateDirectory
(00256D9F) Vcl::Extctrls::TTimer::Timer
(003C7A98) System::Classes::_18201
(00046DD0) USER32.dll
(00026275) USER32.dll
(00024BA3) USER32.dll
(000246DB) USER32.dll.DispatchMessageW

The problem happens rarely. I cannot reproduce it.

I left it running after uploading a file somewhere, then came back and saw the error...

<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 5.19.2

Error message:
Invalid access to memory.

Stack trace:
(002B1AB3) Vcl::Comctrls::TTreeNode::GetTreeView
(000878AF) ntdll.dll
(00073EE1) ntdll.dll.KiUserExceptionDispatcher
(0046EA95) Customdriveview::_16446
(0046EA95) Customdriveview::_16446
(0046EB24) Customdriveview::TCustomDriveView::IterateSubTree
(00481082) Driveview::TDriveView::ValidateDirectoryEx
(0046E7B5) Customdriveview::TCustomDriveView::ValidateDirectory
(00256CDF) Vcl::Extctrls::TTimer::Timer
(003C79D8) System::Classes::_18201
(00042489) USER32.dll
(00039425) USER32.dll
(00037195) USER32.dll
(00036F5B) USER32.dll.DispatchMessageW

The problem happens rarely. I cannot reproduce it.

@j.muis: 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.

the app has been online for a long time without me using it. When I finally wanted to upload something, this message was there. it happens the first time<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 5.19.5

Error message:
Unzulässiger Zugriff auf einen Speicherbereich.

Stapelverfolgung:
(002B1C3F) Vcl::Comctrls::TTreeNode::GetTreeView
(000975BF) ntdll.dll
(00075CA1) ntdll.dll.KiUserExceptionDispatcher
(0046EC21) Customdriveview::_16446
(0046ECB0) Customdriveview::TCustomDriveView::IterateSubTree
(0048120E) Driveview::TDriveView::ValidateDirectoryEx
(0046E941) Customdriveview::TCustomDriveView::ValidateDirectory
(00256E6B) Vcl::Extctrls::TTimer::Timer
(003C7B64) System::Classes::_18201
(00046DD0) USER32.dll
(00026275) USER32.dll
(00024BA3) USER32.dll
(000246DB) USER32.dll.DispatchMessageW

The problem happens rarely. I cannot reproduce it.

WinSCP crashed while in the background (Win 11), No active operations were running. The crash appeared after Windows got back from sleeping mode.
<If relevant, consider attaching a session log file or a screenshot)>

WinSCP 5.19.5

Error message:
Invalid access to memory.

Stack trace:
(002B1C3F) Vcl::Comctrls::TTreeNode::GetTreeView
(000975BF) ntdll.dll
(00075CA1) ntdll.dll.KiUserExceptionDispatcher
(0046EC21) Customdriveview::_16446
(0046EC21) Customdriveview::_16446
(0046EC21) Customdriveview::_16446
(0046EC21) Customdriveview::_16446
(0046EC21) Customdriveview::_16446
(0046EC21) Customdriveview::_16446
(0046EC21) Customdriveview::_16446
(0046ECB0) Customdriveview::TCustomDriveView::IterateSubTree
(0048120E) Driveview::TDriveView::ValidateDirectoryEx
(0046E941) Customdriveview::TCustomDriveView::ValidateDirectory
(00256E6B) Vcl::Extctrls::TTimer::Timer
(003C7B64) System::Classes::_18201
(00046DD0) USER32.dll
(00026275) USER32.dll
(00024BA3) USER32.dll
(000246DB) 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 5.19.5

Error message:
Ogiltig åtkomst till minnet.

Stackspår:
(002B1C3F) Vcl::Comctrls::TTreeNode::GetTreeView
(000878AF) ntdll.dll
(00073EE1) ntdll.dll.KiUserExceptionDispatcher
(0046EC21) Customdriveview::_16446
(0046EC21) Customdriveview::_16446
(0046EC21) Customdriveview::_16446
(0046ECB0) Customdriveview::TCustomDriveView::IterateSubTree
(0048120E) Driveview::TDriveView::ValidateDirectoryEx
(0046E941) Customdriveview::TCustomDriveView::ValidateDirectory
(00256E6B) Vcl::Extctrls::TTimer::Timer
(003C7B64) System::Classes::_18201
(00042489) USER32.dll
(00039425) USER32.dll
(00037195) USER32.dll
(00036F5B) USER32.dll.DispatchMessageW

The problem happens rarely. I cannot reproduce it.

Received various invalid access errors lately. All seem to be related when the app hasn't been used for some and time and/or after the pc has been in sleep mode.

WinSCP 5.19.4

Error message:
Invalid access to memory.

Stack trace:
(002B1B73) Vcl::Comctrls::TTreeNode::GetTreeView
(000975BF) ntdll.dll
(00075CA1) ntdll.dll.KiUserExceptionDispatcher
(0046EBE4) Customdriveview::TCustomDriveView::IterateSubTree
(00481142) Driveview::TDriveView::ValidateDirectoryEx
(0046E875) Customdriveview::TCustomDriveView::ValidateDirectory
(00256D9F) Vcl::Extctrls::TTimer::Timer
(003C7A98) System::Classes::_18201
(00046DD0) USER32.dll
(00026275) USER32.dll
(00024BA3) USER32.dll
(000246DB) 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.

Started a new SFTP session with prefilled username / password

WinSCP 5.19.4

Error message:
Invalid access to memory.

Stack trace:
(002B1B73) Vcl::Comctrls::TTreeNode::GetTreeView
(000975BF) ntdll.dll
(00075CA1) ntdll.dll.KiUserExceptionDispatcher
(0046EBE4) Customdriveview::TCustomDriveView::IterateSubTree
(00481142) Driveview::TDriveView::ValidateDirectoryEx
(0046E875) Customdriveview::TCustomDriveView::ValidateDirectory
(00256D9F) Vcl::Extctrls::TTimer::Timer
(003C7A98) System::Classes::_18201
(00046DD0) USER32.dll
(00026275) USER32.dll
(00024BA3) USER32.dll
(000246DB) USER32.dll.DispatchMessageW

The problem happens rarely. I cannot reproduce it.

Worked with it the nicht before, woke up and the message was there.

WinSCP 5.19.2

Error message:
Unzulässiger Zugriff auf einen Speicherbereich.

Stapelverfolgung:
(002B1AB3) Vcl::Comctrls::TTreeNode::GetTreeView
(000878AF) ntdll.dll
(00073EE1) ntdll.dll.KiUserExceptionDispatcher
(0046EA95) Customdriveview::_16446
(0046EA95) Customdriveview::_16446
(0046EA95) Customdriveview::_16446
(0046EB24) Customdriveview::TCustomDriveView::IterateSubTree
(00481082) Driveview::TDriveView::ValidateDirectoryEx
(0046E7B5) Customdriveview::TCustomDriveView::ValidateDirectory
(00256CDF) Vcl::Extctrls::TTimer::Timer
(003C79D8) System::Classes::_18201
(000421D9) USER32.dll
(00039175) USER32.dll
(00036EE5) USER32.dll
(00036CAB) 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 5.19.4

Error message:
Unzulässiger Zugriff auf einen Speicherbereich.

Stapelverfolgung:
(002B1B73) Vcl::Comctrls::TTreeNode::GetTreeView
(000878AF) ntdll.dll
(00073EE1) ntdll.dll.KiUserExceptionDispatcher
(0046EB55) Customdriveview::_16446
(0046EBE4) Customdriveview::TCustomDriveView::IterateSubTree
(00481142) Driveview::TDriveView::ValidateDirectoryEx
(0046E875) Customdriveview::TCustomDriveView::ValidateDirectory
(00256D9F) Vcl::Extctrls::TTimer::Timer
(003C7A98) System::Classes::_18201
(000421D9) USER32.dll
(00039175) USER32.dll
(00036EE5) USER32.dll
(00036CAB) USER32.dll.DispatchMessageW

The problem happens rarely. I cannot reproduce it.

I worked with WinSCP last evening and left my laptop with lid down. Today morning, when I logged in, I saw this error popped up.
<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 5.17.10

Error message:
Invalid access to memory.

Stack trace:
(002AC573) Vcl::Comctrls::TTreeNode::GetTreeView
(000878AF) ntdll.dll
(00073EE1) ntdll.dll.KiUserExceptionDispatcher
(0044CBB0) Customdriveview::TCustomDriveView::IterateSubTree
(0045F2CE) Driveview::TDriveView::ValidateDirectoryEx
(0044C841) Customdriveview::TCustomDriveView::ValidateDirectory
(0025179F) Vcl::Extctrls::TTimer::Timer
(003A5978) System::Classes::_18201
(000421D9) USER32.dll
(00039175) USER32.dll
(00036EE5) USER32.dll
(00036CAB) USER32.dll.DispatchMessageW

The problem happens rarely. I cannot reproduce it.

OS: Windows 11
I waked (not started) my computer in the morning. WinSCP was running. Started day before and was disconnected.

WinSCP 5.19.4

Error message:
Invalid access to memory.

Stack trace:
(002B1B73) Vcl::Comctrls::TTreeNode::GetTreeView
(000975BF) ntdll.dll
(00075CA1) ntdll.dll.KiUserExceptionDispatcher
(0046EB55) Customdriveview::_16446
(0046EB55) Customdriveview::_16446
(0046EB55) Customdriveview::_16446
(0046EBE4) Customdriveview::TCustomDriveView::IterateSubTree
(00481142) Driveview::TDriveView::ValidateDirectoryEx
(0046E875) Customdriveview::TCustomDriveView::ValidateDirectory
(00256D9F) Vcl::Extctrls::TTimer::Timer
(003C7A98) System::Classes::_18201
(00046DD0) USER32.dll
(00026275) USER32.dll
(00024BA3) USER32.dll
(000246DB) 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 5.19.4

Error message:
Unzulässiger Zugriff auf einen Speicherbereich.

Stapelverfolgung:
(002B1B73) Vcl::Comctrls::TTreeNode::GetTreeView
(000878AF) ntdll.dll
(00073EE1) ntdll.dll.KiUserExceptionDispatcher
(0046EB55) Customdriveview::_16446
(0046EBE4) Customdriveview::TCustomDriveView::IterateSubTree
(00481142) Driveview::TDriveView::ValidateDirectoryEx
(0046E875) Customdriveview::TCustomDriveView::ValidateDirectory
(00256D9F) Vcl::Extctrls::TTimer::Timer
(003C7A98) System::Classes::_18201
(000421D9) USER32.dll
(00039175) USER32.dll
(00036EE5) USER32.dll
(00036CAB) 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 5.19.4

Error message:
Invalid access to memory.

Stack trace:
(002B1B73) Vcl::Comctrls::TTreeNode::GetTreeView
(0008788F) ntdll.dll
(00073EC1) ntdll.dll.KiUserExceptionDispatcher
(0046EB55) Customdriveview::_16446
(0046EBE4) Customdriveview::TCustomDriveView::IterateSubTree
(00481142) Driveview::TDriveView::ValidateDirectoryEx
(0046E875) Customdriveview::TCustomDriveView::ValidateDirectory
(00256D9F) Vcl::Extctrls::TTimer::Timer
(003C7A98) System::Classes::_18201
(0003DEB9) USER32.dll
(00034E75) USER32.dll
(00032BE5) USER32.dll
(000329AB) 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 5.19.4

Error message:
Invalid access to memory.

Stack trace:
(002B1B73) Vcl::Comctrls::TTreeNode::GetTreeView
(000878AF) ntdll.dll
(00073EE1) ntdll.dll.KiUserExceptionDispatcher
(0046EB55) Customdriveview::_16446
(0046EB55) Customdriveview::_16446
(0046EB55) Customdriveview::_16446
(0046EB55) Customdriveview::_16446
(0046EB55) Customdriveview::_16446
(0046EBE4) Customdriveview::TCustomDriveView::IterateSubTree
(00481142) Driveview::TDriveView::ValidateDirectoryEx
(0046E875) Customdriveview::TCustomDriveView::ValidateDirectory
(00256D9F) Vcl::Extctrls::TTimer::Timer
(003C7A98) System::Classes::_18201
(000421D9) USER32.dll
(00039175) USER32.dll
(00036EE5) USER32.dll
(00036CAB) 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 5.19.4

Error message:
Unzulässiger Zugriff auf einen Speicherbereich.

Stapelverfolgung:
(002B1B73) Vcl::Comctrls::TTreeNode::GetTreeView
(000878AF) ntdll.dll
(00073EE1) ntdll.dll.KiUserExceptionDispatcher
(0046EB55) Customdriveview::_16446
(0046EB55) Customdriveview::_16446
(0046EB55) Customdriveview::_16446
(0046EBE4) Customdriveview::TCustomDriveView::IterateSubTree
(00481142) Driveview::TDriveView::ValidateDirectoryEx
(0046E875) Customdriveview::TCustomDriveView::ValidateDirectory
(00256D9F) Vcl::Extctrls::TTimer::Timer
(003C7A98) System::Classes::_18201
(000421D9) USER32.dll
(00039175) USER32.dll
(00036EE5) USER32.dll
(00036CAB) 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 5.19.4

Error message:
Virheellinen muistiviittaus.

Pinon jäljitys:
(002B1B73) Vcl::Comctrls::TTreeNode::GetTreeView
(000878AF) ntdll.dll
(00073EE1) ntdll.dll.KiUserExceptionDispatcher
(0046EB55) Customdriveview::_16446
(0046EBE4) Customdriveview::TCustomDriveView::IterateSubTree
(00481142) Driveview::TDriveView::ValidateDirectoryEx
(0046E875) Customdriveview::TCustomDriveView::ValidateDirectory
(00256D9F) Vcl::Extctrls::TTimer::Timer
(003C7A98) System::Classes::_18201
(000421D9) USER32.dll
(00039175) USER32.dll
(00036EE5) USER32.dll
(00036CAB) 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 5.19.4

Error message:
Invalid access to memory.

Stack trace:
(002B1B73) Vcl::Comctrls::TTreeNode::GetTreeView
(000878AF) ntdll.dll
(00073EE1) ntdll.dll.KiUserExceptionDispatcher
(0046EB55) Customdriveview::_16446
(0046EB55) Customdriveview::_16446
(0046EB55) Customdriveview::_16446
(0046EBE4) Customdriveview::TCustomDriveView::IterateSubTree
(00481142) Driveview::TDriveView::ValidateDirectoryEx
(0046E875) Customdriveview::TCustomDriveView::ValidateDirectory
(00256D9F) Vcl::Extctrls::TTimer::Timer
(003C7A98) System::Classes::_18201
(000421D9) USER32.dll
(00039175) USER32.dll
(00036EE5) USER32.dll
(00036CAB) 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 5.19.4

Error message:
Invalid access to memory.

Stack trace:
(002B1B73) Vcl::Comctrls::TTreeNode::GetTreeView
(00088F2F) ntdll.dll
(000743C1) ntdll.dll.KiUserExceptionDispatcher
(0046EB55) Customdriveview::_16446
(0046EB55) Customdriveview::_16446
(0046EB55) Customdriveview::_16446
(0046EB55) Customdriveview::_16446
(0046EBE4) Customdriveview::TCustomDriveView::IterateSubTree
(00481142) Driveview::TDriveView::ValidateDirectoryEx
(0046E875) Customdriveview::TCustomDriveView::ValidateDirectory
(00256D9F) Vcl::Extctrls::TTimer::Timer
(003C7A98) System::Classes::_18201
(000437A9) USER32.dll
(000242A7) USER32.dll
(000233F9) USER32.dll
(000231DB) USER32.dll.DispatchMessageW
(000212B2)QIPCAP.dll

The problem happens rarely. I cannot reproduce it.

Thanks for your reports.
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 5.19.4

Error message:
Invalid access to memory.

Stack trace:
(002B1B73) Vcl::Comctrls::TTreeNode::GetTreeView
(0008788F) ntdll.dll
(00073EC1) ntdll.dll.KiUserExceptionDispatcher
(0046EB55) Customdriveview::_16446
(0046EB55) Customdriveview::_16446
(0046EB55) Customdriveview::_16446
(0046EBE4) Customdriveview::TCustomDriveView::IterateSubTree
(00481142) Driveview::TDriveView::ValidateDirectoryEx
(0046E875) Customdriveview::TCustomDriveView::ValidateDirectory
(00256D9F) Vcl::Extctrls::TTimer::Timer
(003C7A98) System::Classes::_18201
(0003DDE9) USER32.dll
(00034DA5) USER32.dll
(00032B15) USER32.dll
(000328DB) 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.

<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 5.19.4

Error message:
Invalid access to memory.

Stack trace:
(002B1B73) Vcl::Comctrls::TTreeNode::GetTreeView
(0008788F) ntdll.dll
(00073EC1) ntdll.dll.KiUserExceptionDispatcher
(0046EB55) Customdriveview::_16446
(0046EB55) Customdriveview::_16446
(0046EB55) Customdriveview::_16446
(0046EBE4) Customdriveview::TCustomDriveView::IterateSubTree
(00481142) Driveview::TDriveView::ValidateDirectoryEx
(0046E875) Customdriveview::TCustomDriveView::ValidateDirectory
(00256D9F) Vcl::Extctrls::TTimer::Timer
(003C7A98) System::Classes::_18201
(0003DDE9) USER32.dll
(00034DA5) USER32.dll
(00032B15) USER32.dll
(000328DB) 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 5.17.10

Error message:
Invalid access to memory.

Stack trace:
(002AC573) Vcl::Comctrls::TTreeNode::GetTreeView
(000878AF) ntdll.dll
(00073EE1) ntdll.dll.KiUserExceptionDispatcher
(0044CB21) Customdriveview::_16446
(0044CB21) Customdriveview::_16446
(0044CB21) Customdriveview::_16446
(0044CB21) Customdriveview::_16446
(0044CB21) Customdriveview::_16446
(0044CB21) Customdriveview::_16446
(0044CBB0) Customdriveview::TCustomDriveView::IterateSubTree
(0045F2CE) Driveview::TDriveView::ValidateDirectoryEx
(0044C841) Customdriveview::TCustomDriveView::ValidateDirectory
(0025179F) Vcl::Extctrls::TTimer::Timer
(003A5978) System::Classes::_18201
(000421D9) USER32.dll
(00039175) USER32.dll
(00036EE5) USER32.dll
(00036CAB) 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 5.19.2

Error message:
Invalid access to memory.

Stack trace:
(002B1AB3) Vcl::Comctrls::TTreeNode::GetTreeView
(00088F9F) ntdll.dll
(000741F1) ntdll.dll.KiUserExceptionDispatcher
(0046EA95) Customdriveview::_16446
(0046EA95) Customdriveview::_16446
(0046EB24) Customdriveview::TCustomDriveView::IterateSubTree
(00481082) Driveview::TDriveView::ValidateDirectoryEx
(0046E7B5) Customdriveview::TCustomDriveView::ValidateDirectory
(00256CDF) Vcl::Extctrls::TTimer::Timer
(003C79D8) System::Classes::_18201
(00043719) USER32.dll
(00024257) USER32.dll
(000233A9) USER32.dll
(0002318B) 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.

<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 5.19.2

Error message:
Ошибка доступа к памяти.

Трассировка стека:
(002B1AB3) Vcl::Comctrls::TTreeNode::GetTreeView
(000878AF) ntdll.dll
(00073EE1) ntdll.dll.KiUserExceptionDispatcher
(0046EA95) Customdriveview::_16446
(0046EB24) Customdriveview::TCustomDriveView::IterateSubTree
(00481082) Driveview::TDriveView::ValidateDirectoryEx
(0046E7B5) Customdriveview::TCustomDriveView::ValidateDirectory
(00256CDF) Vcl::Extctrls::TTimer::Timer
(003C79D8) System::Classes::_18201
(000426D9) USER32.dll
(00039665) USER32.dll
(000373D5) USER32.dll
(0003719B) 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 5.19.4

Error message:
Invalid access to memory.

Stack trace:
(002B1B73) Vcl::Comctrls::TTreeNode::GetTreeView
(00088F9F) ntdll.dll
(000741F1) ntdll.dll.KiUserExceptionDispatcher
(0046EB55) Customdriveview::_16446
(0046EB55) Customdriveview::_16446
(0046EBE4) Customdriveview::TCustomDriveView::IterateSubTree
(00481142) Driveview::TDriveView::ValidateDirectoryEx
(0046E875) Customdriveview::TCustomDriveView::ValidateDirectory
(0047EDED) Driveview::TDriveView::Change
(002B63AA) Vcl::Comctrls::TCustomTreeView::CNNotify
(0046E38D) Customdriveview::TCustomDriveView::CNNotify
(00280315) Vcl::Controls::TWinControl::WndProc
(002B6666) Vcl::Comctrls::TCustomTreeView::WndProc
(0028047B) Vcl::Controls::_17076
(00280315) Vcl::Controls::TWinControl::WndProc
(0027F95C) Vcl::Controls::TWinControl::MainWndProc
(003C7A98) System::Classes::_18201
(00043719) USER32.dll
(00024257) USER32.dll
(00023DF5) USER32.dll
(0002D44D) USER32.dll
(000741AB) ntdll.dll.KiUserCallbackDispatcher
(000236CE) USER32.dll.SendMessageW
(0005A141) COMCTL32.dll
(0001DB25) COMCTL32.dll
(0001D9FA) COMCTL32.dll
(00023508) COMCTL32.dll
(00043719) USER32.dll
(00024257) USER32.dll
(000237AA) USER32.dll.CallWindowProcW
(00280426) Vcl::Controls::TWinControl::DefaultHandler
(00280315) Vcl::Controls::TWinControl::WndProc
(002B6666) Vcl::Comctrls::TCustomTreeView::WndProc
(003C7A98) System::Classes::_18201
(00043719) USER32.dll
(00024257) USER32.dll
(00023DF5) USER32.dll
(0002D44D) USER32.dll
(000741AB) ntdll.dll.KiUserCallbackDispatcher
(000236CE) USER32.dll.SendMessageW
(00384F6F) Winapi::Commctrl::TreeView_SelectItem
(0046D2ED) Customdriveview::TCustomDriveView::CreateWnd
(0027F3A6) Vcl::Controls::TWinControl::CreateHandle
(0027B7D1) Vcl::Controls::TControl::WndProc
(00280315) Vcl::Controls::TWinControl::WndProc
(002B6666) Vcl::Comctrls::TCustomTreeView::WndProc
(0027F566) Vcl::Controls::TWinControl::RecreateWnd
(00280315) 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 5.19.4

Error message:
メモリのアクセス違反

スタック トレース:
(002B1B73) Vcl::Comctrls::TTreeNode::GetTreeView
(000878AF) ntdll.dll
(00073EE1) ntdll.dll.KiUserExceptionDispatcher
(0046EBE4) Customdriveview::TCustomDriveView::IterateSubTree
(00481142) Driveview::TDriveView::ValidateDirectoryEx
(0046E875) Customdriveview::TCustomDriveView::ValidateDirectory
(00256D9F) Vcl::Extctrls::TTimer::Timer
(003C7A98) System::Classes::_18201
(00042489) USER32.dll
(00039425) USER32.dll
(00037195) USER32.dll
(00036F5B) USER32.dll.DispatchMessageW

The problem happens rarely. I cannot reproduce it.

Downloaded some files, then put laptop into hibernation mode.
Upon restarting, I got this error message.

WinSCP 5.19.3

Error message:
Unzulässiger Zugriff auf einen Speicherbereich.

Stapelverfolgung:
(002B1B73) Vcl::Comctrls::TTreeNode::GetTreeView
(000878AF) ntdll.dll
(00073EE1) ntdll.dll.KiUserExceptionDispatcher
(0046EB55) Customdriveview::_16446
(0046EB55) Customdriveview::_16446
(0046EB55) Customdriveview::_16446
(0046EB55) Customdriveview::_16446
(0046EB55) Customdriveview::_16446
(0046EB55) Customdriveview::_16446
(0046EBE4) Customdriveview::TCustomDriveView::IterateSubTree
(00481142) Driveview::TDriveView::ValidateDirectoryEx
(0046E875) Customdriveview::TCustomDriveView::ValidateDirectory
(00256D9F) Vcl::Extctrls::TTimer::Timer
(003C7A98) System::Classes::_18201
(00042489) USER32.dll
(00039425) USER32.dll
(00037195) USER32.dll
(00036F5B) USER32.dll.DispatchMessageW

The problem happens rarely. I cannot reproduce it.

Precise steps that lead to the problem (where do you click, what keys do you press, what do you see, etc.

Downloaded some files, and then idled for a long time (2-4 hours). This is the most I could remember.


WinSCP 5.19.2

Error message:
Invalid access to memory.

Stack trace:
(002B1AB3) Vcl::Comctrls::TTreeNode::GetTreeView
(0003EC2E) ntdll.dll.ZwWow64CallFunction64
(0003F3AA) ntdll.dll.KiUserExceptionDispatcher
(0046EA95) Customdriveview::_16446
(0046EA95) Customdriveview::_16446
(0046EB24) Customdriveview::TCustomDriveView::IterateSubTree
(00481082) Driveview::TDriveView::ValidateDirectoryEx
(0046E7B5) Customdriveview::TCustomDriveView::ValidateDirectory
(00256CDF) Vcl::Extctrls::TTimer::Timer
(003C79D8) 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 5.19.4

Error message:
Unzulässiger Zugriff auf einen Speicherbereich.

Stapelverfolgung:
(002B1B73) Vcl::Comctrls::TTreeNode::GetTreeView
(000878AF) ntdll.dll
(00073EE1) ntdll.dll.KiUserExceptionDispatcher
(0046EB55) Customdriveview::_16446
(0046EB55) Customdriveview::_16446
(0046EB55) Customdriveview::_16446
(0046EBE4) Customdriveview::TCustomDriveView::IterateSubTree
(00481142) Driveview::TDriveView::ValidateDirectoryEx
(0046E875) Customdriveview::TCustomDriveView::ValidateDirectory
(00256D9F) Vcl::Extctrls::TTimer::Timer
(003C7A98) System::Classes::_18201
(000421D9) USER32.dll
(00039175) USER32.dll
(00036EE5) USER32.dll
(00036CAB) 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 5.19.3

Error message:
Invalid access to memory.

Stack trace:
(002B1B73) Vcl::Comctrls::TTreeNode::GetTreeView
(000878AF) ntdll.dll
(00073EE1) ntdll.dll.KiUserExceptionDispatcher
(0046EBE4) Customdriveview::TCustomDriveView::IterateSubTree
(00481142) Driveview::TDriveView::ValidateDirectoryEx
(0046E875) Customdriveview::TCustomDriveView::ValidateDirectory
(00256D9F) Vcl::Extctrls::TTimer::Timer
(003C7A98) System::Classes::_18201
(000426D9) USER32.dll
(00039665) USER32.dll
(000373D5) USER32.dll
(0003719B) 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.)>

Leaving the program open and idle, eventually the program crashes.

<If relevant, consider attaching a session log file or a screenshot)>

WinSCP 5.19.4

Error message:
Invalid access to memory.

Stack trace:
(002B1B73) Vcl::Comctrls::TTreeNode::GetTreeView
(000878AF) ntdll.dll
(00073EE1) ntdll.dll.KiUserExceptionDispatcher
(0046EB55) Customdriveview::_16446
(0046EB55) Customdriveview::_16446
(0046EBE4) Customdriveview::TCustomDriveView::IterateSubTree
(00481142) Driveview::TDriveView::ValidateDirectoryEx
(0046E875) Customdriveview::TCustomDriveView::ValidateDirectory
(00256D9F) Vcl::Extctrls::TTimer::Timer
(003C7A98) System::Classes::_18201
(000426D9) USER32.dll
(00039665) USER32.dll
(000373D5) USER32.dll
(0003719B) 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 5.19.2

Error message:
Ошибка доступа к памяти.

Трассировка стека:
(002B1AB3) Vcl::Comctrls::TTreeNode::GetTreeView
(000878AF) ntdll.dll
(00073EE1) ntdll.dll.KiUserExceptionDispatcher
(0046EA95) Customdriveview::_16446
(0046EA95) Customdriveview::_16446
(0046EA95) Customdriveview::_16446
(0046EB24) Customdriveview::TCustomDriveView::IterateSubTree
(00481082) Driveview::TDriveView::ValidateDirectoryEx
(0046E7B5) Customdriveview::TCustomDriveView::ValidateDirectory
(00256CDF) Vcl::Extctrls::TTimer::Timer
(003C79D8) System::Classes::_18201
(000426D9) USER32.dll
(00039665) USER32.dll
(000373D5) USER32.dll
(0003719B) USER32.dll.DispatchMessageW

The problem happens rarely. I cannot reproduce it.

Hi,
the error happened when the program window was open in the background in a remote desktop session.
Unfortunately I did not notice when it exactly happened. When I took the application window in the foreground again I saw the error mmessage.
Kind regards
Detlev

WinSCP 5.19

Error message:
Unzulässiger Zugriff auf einen Speicherbereich.

Stapelverfolgung:
(002B1913) Vcl::Comctrls::TTreeNode::GetTreeView
(000878AF) ntdll.dll
(00073EE1) ntdll.dll.KiUserExceptionDispatcher
(0046E8F5) Customdriveview::_16446
(0046E8F5) Customdriveview::_16446
(0046E984) Customdriveview::TCustomDriveView::IterateSubTree
(00480EDA) Driveview::TDriveView::ValidateDirectoryEx
(0046E615) Customdriveview::TCustomDriveView::ValidateDirectory
(00256B3F) Vcl::Extctrls::TTimer::Timer
(003C7838) System::Classes::_18201
(00042489) USER32.dll
(00039425) USER32.dll
(00037195) USER32.dll
(00036F5B) 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 5.19.3

Error message:
Invalid access to memory.

Stack trace:
(002B1B73) Vcl::Comctrls::TTreeNode::GetTreeView
(000878AF) ntdll.dll
(00073EE1) ntdll.dll.KiUserExceptionDispatcher
(0046EB55) Customdriveview::_16446
(0046EBE4) Customdriveview::TCustomDriveView::IterateSubTree
(00481142) Driveview::TDriveView::ValidateDirectoryEx
(0046E875) Customdriveview::TCustomDriveView::ValidateDirectory
(00256D9F) Vcl::Extctrls::TTimer::Timer
(003C7A98) System::Classes::_18201
(00042489) USER32.dll
(00039425) USER32.dll
(00037195) USER32.dll
(00036F5B) USER32.dll.DispatchMessageW

The problem happens rarely. I cannot reproduce it.

This has only happened once and I expect it to be a fairly uncommon corner case.
I have not attempted to reproduce the problem. Session logging is not configured.
Not entirely sure when in the steps the error happened.
1. WinSCP left connected to a site within a corporate VPN.
2. Computer goes to sleep for several hours.
3. On wake the computer is disconnected from the corporate VPN.
4. Computer is reconnected to corporate VPN.
4. When accessing the open WinSCP window, the error message is displayed.

Hope this helps!

WinSCP 5.19.3

Error message:
Invalid access to memory.

Stack trace:
(002B1B73) Vcl::Comctrls::TTreeNode::GetTreeView
(00088F2F) ntdll.dll
(000743C1) ntdll.dll.KiUserExceptionDispatcher
(0046EB55) Customdriveview::_16446
(0046EB55) Customdriveview::_16446
(0046EBE4) Customdriveview::TCustomDriveView::IterateSubTree
(00481142) Driveview::TDriveView::ValidateDirectoryEx
(0046E875) Customdriveview::TCustomDriveView::ValidateDirectory
(00256D9F) Vcl::Extctrls::TTimer::Timer
(003C7A98) System::Classes::_18201
(000437A9) USER32.dll
(000242A7) USER32.dll
(000233F9) USER32.dll
(000231DB) 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 5.19.3

Error message:
Invalid access to memory.

Stack trace:
(002B1B73) Vcl::Comctrls::TTreeNode::GetTreeView
(00085B2F) ntdll.dll
(00073A61) ntdll.dll.KiUserExceptionDispatcher
(0047F643) Driveview::TDriveView::RefreshRootNodes
(0047DA0B) Driveview::TDriveView::InternalWndProc
(003C7A98) System::Classes::_18201
(00032119) USER32.dll
(0002475E) USER32.dll
(000240ED) USER32.dll
(00023EBB) 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 5.17.10

Error message:
Invalid access to memory.

Stack trace:
(002AC573) Vcl::Comctrls::TTreeNode::GetTreeView
(00088F9F) ntdll.dll
(000741F1) ntdll.dll.KiUserExceptionDispatcher
(0044CB21) Customdriveview::_16446
(0044CB21) Customdriveview::_16446
(0044CBB0) Customdriveview::TCustomDriveView::IterateSubTree
(0045F2CE) Driveview::TDriveView::ValidateDirectoryEx
(0044C841) Customdriveview::TCustomDriveView::ValidateDirectory
(0025179F) Vcl::Extctrls::TTimer::Timer
(003A5978) System::Classes::_18201
(000437A9) USER32.dll
(000242A7) USER32.dll
(000233F9) USER32.dll
(000231DB) 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 5.19.2

Error message:
Invalid access to memory.

Stack trace:
(002B1AB3) Vcl::Comctrls::TTreeNode::GetTreeView
(0008544F) ntdll.dll
(00072A01) ntdll.dll.KiUserExceptionDispatcher
(0046EA95) Customdriveview::_16446
(0046EA95) Customdriveview::_16446
(0046EA95) Customdriveview::_16446
(0046EA95) Customdriveview::_16446
(0046EA95) Customdriveview::_16446
(0046EA95) Customdriveview::_16446
(0046EA95) Customdriveview::_16446
(0046EA95) Customdriveview::_16446
(0046EB24) Customdriveview::TCustomDriveView::IterateSubTree
(00481082) Driveview::TDriveView::ValidateDirectoryEx
(0046E7B5) Customdriveview::TCustomDriveView::ValidateDirectory
(00256CDF) Vcl::Extctrls::TTimer::Timer
(003C79D8) System::Classes::_18201
(00044D09) USER32.dll
(00035807) USER32.dll
(00034946) USER32.dll
(0003471B) USER32.dll.DispatchMessageW

The problem happens rarely. I cannot reproduce it.

WinSCP runs over night w/o activities
after login today morning I saw the error msg
<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 5.19.2

Error message:
Invalid access to memory.

Stack trace:
(002B1AB3) Vcl::Comctrls::TTreeNode::GetTreeView
(000878AF) ntdll.dll
(00073EE1) ntdll.dll.KiUserExceptionDispatcher
(0046EA95) Customdriveview::_16446
(0046EA95) Customdriveview::_16446
(0046EA95) Customdriveview::_16446
(0046EB24) Customdriveview::TCustomDriveView::IterateSubTree
(00481082) Driveview::TDriveView::ValidateDirectoryEx
(0046E7B5) Customdriveview::TCustomDriveView::ValidateDirectory
(00256CDF) Vcl::Extctrls::TTimer::Timer
(003C79D8) System::Classes::_18201
(000426D9) USER32.dll
(00039665) USER32.dll
(000373D5) USER32.dll
(0003719B) 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 5.19.3

Error message:
Invalid access to memory.

Stack trace:
(002B1B73) Vcl::Comctrls::TTreeNode::GetTreeView
(000878AF) ntdll.dll
(00073EE1) ntdll.dll.KiUserExceptionDispatcher
(0046EBE4) Customdriveview::TCustomDriveView::IterateSubTree
(00481142) Driveview::TDriveView::ValidateDirectoryEx
(0046E875) Customdriveview::TCustomDriveView::ValidateDirectory
(0047EDED) Driveview::TDriveView::Change
(002B63AA) Vcl::Comctrls::TCustomTreeView::CNNotify
(0046E38D) Customdriveview::TCustomDriveView::CNNotify
(00280315) Vcl::Controls::TWinControl::WndProc
(002B6666) Vcl::Comctrls::TCustomTreeView::WndProc
(0028047B) Vcl::Controls::_17076
(00280315) Vcl::Controls::TWinControl::WndProc
(0027F95C) Vcl::Controls::TWinControl::MainWndProc
(003C7A98) System::Classes::_18201
(00042489) USER32.dll
(00039425) USER32.dll
(00039025) USER32.dll
(0003CBED) USER32.dll
(00073E9B) ntdll.dll.KiUserCallbackDispatcher
(00036E4A) USER32.dll.SendMessageW
(00068881) COMCTL32.DLL
(00028892) COMCTL32.DLL
(00028767) COMCTL32.DLL
(0003EC58) COMCTL32.DLL
(00042489) USER32.dll
(00039425) USER32.dll
(00038B02) USER32.dll
(00036CA6) USER32.dll.CallWindowProcW
(00280426) Vcl::Controls::TWinControl::DefaultHandler
(00280315) Vcl::Controls::TWinControl::WndProc
(002B6666) Vcl::Comctrls::TCustomTreeView::WndProc
(003C7A98) System::Classes::_18201
(00042489) USER32.dll
(00039425) USER32.dll
(00039025) USER32.dll
(0003CBED) USER32.dll
(00073E9B) ntdll.dll.KiUserCallbackDispatcher
(00036E4A) USER32.dll.SendMessageW
(00384F6F) Winapi::Commctrl::TreeView_SelectItem
(0046D2ED) Customdriveview::TCustomDriveView::CreateWnd
(0027F3A6) Vcl::Controls::TWinControl::CreateHandle
(0027B7D1) Vcl::Controls::TControl::WndProc
(00280315) Vcl::Controls::TWinControl::WndProc
(002B6666) Vcl::Comctrls::TCustomTreeView::WndProc
(0027F566) Vcl::Controls::TWinControl::RecreateWnd
(00280315) Vcl::Controls::TWinControl::WndProc

The problem happens rarely. I cannot reproduce it.

@ideiajusta: 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 5.19.2

Error message:
Acesso à memória inválido.

Stack trace:
(002B1AB3) Vcl::Comctrls::TTreeNode::GetTreeView
(000878AF) ntdll.dll
(00073EE1) ntdll.dll.KiUserExceptionDispatcher
(0046EA95) Customdriveview::_16446
(0046EB24) Customdriveview::TCustomDriveView::IterateSubTree
(00481082) Driveview::TDriveView::ValidateDirectoryEx
(0046E7B5) Customdriveview::TCustomDriveView::ValidateDirectory
(00256CDF) Vcl::Extctrls::TTimer::Timer
(003C79D8) System::Classes::_18201
(000426D9) USER32.dll
(00039665) USER32.dll
(000373D5) USER32.dll
(0003719B) 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 left WinSCP running for a few days, RDPed in, used the computer for a while, then found WinSCP while Alt-Tabbing through my Windows. I have two tabs open, not including New Session. I have a workaround (restart WinSCP) so I'm only reporting because the software asked me to.

WinSCP 5.17.10

Error message:
Invalid access to memory.

Stack trace:
(002AC573) Vcl::Comctrls::TTreeNode::GetTreeView
(0008788F) ntdll.dll
(00073EC1) ntdll.dll.KiUserExceptionDispatcher
(0044CBB0) Customdriveview::TCustomDriveView::IterateSubTree
(0045F2CE) Driveview::TDriveView::ValidateDirectoryEx
(0044C841) Customdriveview::TCustomDriveView::ValidateDirectory
(0025179F) Vcl::Extctrls::TTimer::Timer
(003A5978) System::Classes::_18201
(0003DEB9) USER32.dll
(00034E75) USER32.dll
(00032BE5) USER32.dll
(000329AB) 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 5.19.2

Error message:
Invalid access to memory.

Stack trace:
(002B1AB3) Vcl::Comctrls::TTreeNode::GetTreeView
(000878AF) ntdll.dll
(00073EE1) ntdll.dll.KiUserExceptionDispatcher
(0046EA95) Customdriveview::_16446
(0046EA95) Customdriveview::_16446
(0046EB24) Customdriveview::TCustomDriveView::IterateSubTree
(00481082) Driveview::TDriveView::ValidateDirectoryEx
(0046E7B5) Customdriveview::TCustomDriveView::ValidateDirectory
(00256CDF) Vcl::Extctrls::TTimer::Timer
(003C79D8) System::Classes::_18201
(000426D9) USER32.dll
(00039665) USER32.dll
(000373D5) USER32.dll
(0003719B) 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 5.19.2

Error message:
Invalid access to memory.

Stack trace:
(002B1AB3) Vcl::Comctrls::TTreeNode::GetTreeView
(00088F2F) ntdll.dll
(000743C1) ntdll.dll.KiUserExceptionDispatcher
(0046EB24) Customdriveview::TCustomDriveView::IterateSubTree
(00481082) Driveview::TDriveView::ValidateDirectoryEx
(0046E7B5) Customdriveview::TCustomDriveView::ValidateDirectory
(00256CDF) Vcl::Extctrls::TTimer::Timer
(003C79D8) System::Classes::_18201
(000437A9) USER32.dll
(000242A7) USER32.dll
(000233F9) USER32.dll
(000231DB) 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 5.19.2

Error message:
Invalid access to memory.

Stack trace:
(002B1AB3) Vcl::Comctrls::TTreeNode::GetTreeView
(0008788F) ntdll.dll
(00073EC1) ntdll.dll.KiUserExceptionDispatcher
(0046EA95) Customdriveview::_16446
(0046EA95) Customdriveview::_16446
(0046EB24) Customdriveview::TCustomDriveView::IterateSubTree
(00481082) Driveview::TDriveView::ValidateDirectoryEx
(0046E7B5) Customdriveview::TCustomDriveView::ValidateDirectory
(00256CDF) Vcl::Extctrls::TTimer::Timer
(003C79D8) System::Classes::_18201
(0003DEB9) USER32.dll
(00034E75) USER32.dll
(00032BE5) USER32.dll
(000329AB) 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 5.19.2

Error message:
Unzulässiger Zugriff auf einen Speicherbereich.

Stapelverfolgung:
(002B1AB3) Vcl::Comctrls::TTreeNode::GetTreeView
(0008341F) ntdll.dll
(000711F1) ntdll.dll.KiUserExceptionDispatcher
(0046EA95) Customdriveview::_16446
(0046EA95) Customdriveview::_16446
(0046EA95) Customdriveview::_16446
(0046EB24) Customdriveview::TCustomDriveView::IterateSubTree
(00481082) Driveview::TDriveView::ValidateDirectoryEx
(0046E7B5) Customdriveview::TCustomDriveView::ValidateDirectory
(00256CDF) Vcl::Extctrls::TTimer::Timer
(003C79D8) System::Classes::_18201
(00045269) USER32.dll
(000361B7) USER32.dll
(000352E6) USER32.dll
(000350BB) 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 5.19.2

Error message:
Invalid access to memory.

Stack trace:
(002B1AB3) Vcl::Comctrls::TTreeNode::GetTreeView
(000878AF) ntdll.dll
(00073EE1) ntdll.dll.KiUserExceptionDispatcher
(0046EA95) Customdriveview::_16446
(0046EA95) Customdriveview::_16446
(0046EB24) Customdriveview::TCustomDriveView::IterateSubTree
(00481082) Driveview::TDriveView::ValidateDirectoryEx
(0046E7B5) Customdriveview::TCustomDriveView::ValidateDirectory
(00256CDF) Vcl::Extctrls::TTimer::Timer
(003C79D8) System::Classes::_18201
(000426D9) USER32.dll
(00039665) USER32.dll
(000373D5) USER32.dll
(0003719B) 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 5.17.10

Error message:
Ошибка доступа к памяти.

Трассировка стека:
(002AC573) Vcl::Comctrls::TTreeNode::GetTreeView
(0008223F) ntdll.dll
(0006FDBA) ntdll.dll.KiUserExceptionDispatcher
(0044CBB0) Customdriveview::TCustomDriveView::IterateSubTree
(0045F2CE) Driveview::TDriveView::ValidateDirectoryEx
(0044C841) Customdriveview::TCustomDriveView::ValidateDirectory
(0025179F) Vcl::Extctrls::TTimer::Timer
(003A5978) System::Classes::_18201
(0002C2D1) 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 5.17.10

Error message:
Ошибка доступа к памяти.

Трассировка стека:
(002AC573) Vcl::Comctrls::TTreeNode::GetTreeView
(0008776F) ntdll.dll
(00073E91) ntdll.dll.KiUserExceptionDispatcher
(0044CB21) Customdriveview::_16446
(0044CB21) Customdriveview::_16446
(0044CB21) Customdriveview::_16446
(0044CBB0) Customdriveview::TCustomDriveView::IterateSubTree
(0045F2CE) Driveview::TDriveView::ValidateDirectoryEx
(0044C841) Customdriveview::TCustomDriveView::ValidateDirectory
(0025179F) Vcl::Extctrls::TTimer::Timer
(003A5978) System::Classes::_18201
(0003DEB9) USER32.dll
(00034E75) USER32.dll
(00032BE5) USER32.dll
(000329AB) 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 5.19.1

Error message:
Invalid access to memory.

Stack trace:
(002B1AA7) Vcl::Comctrls::TTreeNode::GetTreeView
(00088F9F) ntdll.dll
(000741F1) ntdll.dll.KiUserExceptionDispatcher
(0046EB18) Customdriveview::TCustomDriveView::IterateSubTree
(0048106E) Driveview::TDriveView::ValidateDirectoryEx
(0046E7A9) Customdriveview::TCustomDriveView::ValidateDirectory
(0047ED19) Driveview::TDriveView::Change
(002B62DE) Vcl::Comctrls::TCustomTreeView::CNNotify
(0046E2C1) Customdriveview::TCustomDriveView::CNNotify
(00280249) Vcl::Controls::TWinControl::WndProc
(002B659A) Vcl::Comctrls::TCustomTreeView::WndProc
(002803AF) Vcl::Controls::_17076
(00280249) Vcl::Controls::TWinControl::WndProc
(0027F890) Vcl::Controls::TWinControl::MainWndProc
(003C79CC) System::Classes::_18201
(00043719) USER32.dll
(00024257) USER32.dll
(00023DF5) USER32.dll
(0002D44D) USER32.dll
(000741AB) ntdll.dll.KiUserCallbackDispatcher
(000236CE) USER32.dll.SendMessageW
(0005A141) COMCTL32.DLL
(0001DB25) COMCTL32.DLL
(0001D9FA) COMCTL32.DLL
(00023508) COMCTL32.DLL
(00043719) USER32.dll
(00024257) USER32.dll
(000237AA) USER32.dll.CallWindowProcW
(0028035A) Vcl::Controls::TWinControl::DefaultHandler
(00280249) Vcl::Controls::TWinControl::WndProc
(002B659A) Vcl::Comctrls::TCustomTreeView::WndProc
(003C79CC) System::Classes::_18201
(00043719) USER32.dll
(00024257) USER32.dll
(00023DF5) USER32.dll
(0002D44D) USER32.dll
(000741AB) ntdll.dll.KiUserCallbackDispatcher
(000236CE) USER32.dll.SendMessageW
(00384EA3) Winapi::Commctrl::TreeView_SelectItem
(0046D221) Customdriveview::TCustomDriveView::CreateWnd
(0027F2DA) Vcl::Controls::TWinControl::CreateHandle
(0027B705) Vcl::Controls::TControl::WndProc
(00280249) Vcl::Controls::TWinControl::WndProc
(002B659A) Vcl::Comctrls::TCustomTreeView::WndProc
(0027F49A) Vcl::Controls::TWinControl::RecreateWnd
(00280249) Vcl::Controls::TWinControl::WndProc

The problem happens rarely. I cannot reproduce it.

Directly after awake from hibernate mode. WinSCP was not connected to a server.

WinSCP 5.19.2

Error message:
Invalid access to memory.

Stack trace:
(002B1AB3) Vcl::Comctrls::TTreeNode::GetTreeView
(000878AF) ntdll.dll
(00073EE1) ntdll.dll.KiUserExceptionDispatcher
(0046EA95) Customdriveview::_16446
(0046EA95) Customdriveview::_16446
(0046EB24) Customdriveview::TCustomDriveView::IterateSubTree
(00481082) Driveview::TDriveView::ValidateDirectoryEx
(0046E7B5) Customdriveview::TCustomDriveView::ValidateDirectory
(00256CDF) Vcl::Extctrls::TTimer::Timer
(003C79D8) System::Classes::_18201
(000426D9) USER32.dll
(00039665) USER32.dll
(000373D5) USER32.dll
(0003719B) USER32.dll.DispatchMessageW

The problem happens rarely. I cannot reproduce it.

Just brought the computer back from sleep and it showed that.

WinSCP 5.19.1

Error message:
Invalid access to memory.

Stack trace:
(002B1AA7) Vcl::Comctrls::TTreeNode::GetTreeView
(0008542F) ntdll.dll
(000729E1) ntdll.dll.KiUserExceptionDispatcher
(0046EA89) Customdriveview::_16446
(0046EA89) Customdriveview::_16446
(0046EA89) Customdriveview::_16446
(0046EA89) Customdriveview::_16446
(0046EA89) Customdriveview::_16446
(0046EA89) Customdriveview::_16446
(0046EB18) Customdriveview::TCustomDriveView::IterateSubTree
(0048106E) Driveview::TDriveView::ValidateDirectoryEx
(0046E7A9) Customdriveview::TCustomDriveView::ValidateDirectory
(00256CD3) Vcl::Extctrls::TTimer::Timer
(003C79CC) 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 5.19.2

Error message:
Invalid access to memory.

Stack trace:
(002B1AB3) Vcl::Comctrls::TTreeNode::GetTreeView
(0008788F) ntdll.dll
(00073EC1) ntdll.dll.KiUserExceptionDispatcher
(0046EA95) Customdriveview::_16446
(0046EA95) Customdriveview::_16446
(0046EB24) Customdriveview::TCustomDriveView::IterateSubTree
(00481082) Driveview::TDriveView::ValidateDirectoryEx
(0046E7B5) Customdriveview::TCustomDriveView::ValidateDirectory
(00256CDF) Vcl::Extctrls::TTimer::Timer
(003C79D8) System::Classes::_18201
(0003DDE9) USER32.dll
(00034DA5) USER32.dll
(00032B15) USER32.dll
(000328DB) 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 5.19.2

Error message:
Invalid access to memory.

Stack trace:
(002B1AB3) Vcl::Comctrls::TTreeNode::GetTreeView
(0008788F) ntdll.dll
(00073EC1) ntdll.dll.KiUserExceptionDispatcher
(0046EA95) Customdriveview::_16446
(0046EA95) Customdriveview::_16446
(0046EB24) Customdriveview::TCustomDriveView::IterateSubTree
(00481082) Driveview::TDriveView::ValidateDirectoryEx
(0046E7B5) Customdriveview::TCustomDriveView::ValidateDirectory
(00256CDF) Vcl::Extctrls::TTimer::Timer
(003C79D8) System::Classes::_18201
(0003DDE9) USER32.dll
(00034DA5) USER32.dll
(00032B15) USER32.dll
(000328DB) 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 5.17.9

Error message:
Ошибка доступа к памяти.

Трассировка стека:
(002AC54F) Vcl::Comctrls::TTreeNode::GetTreeView
(0008788F) ntdll.dll
(00073EC1) ntdll.dll.KiUserExceptionDispatcher
(0044CAFD) Customdriveview::_16446
(0044CAFD) Customdriveview::_16446
(0044CAFD) Customdriveview::_16446
(0044CB8C) Customdriveview::TCustomDriveView::IterateSubTree
(0045F2AA) Driveview::TDriveView::ValidateDirectoryEx
(0044C81D) Customdriveview::TCustomDriveView::ValidateDirectory
(0025177B) Vcl::Extctrls::TTimer::Timer
(003A5954) System::Classes::_18201
(0003DEB9) USER32.dll
(00034E75) USER32.dll
(00032BE5) USER32.dll
(000329AB) USER32.dll.DispatchMessageW

The problem happens rarely. I cannot reproduce it.

I was trying to reconnect to my AWS ubuntu machine after moving my laptop from one internet connection to another. This usually works smoothly and in fact did so this time too. So really, I didn't experience any problem - I just got the error message.

WinSCP 5.19.2

Error message:
Invalid access to memory.

Stack trace:
(002B1AB3) Vcl::Comctrls::TTreeNode::GetTreeView
(0008788F) ntdll.dll
(00073EC1) ntdll.dll.KiUserExceptionDispatcher
(0046EA95) Customdriveview::_16446
(0046EA95) Customdriveview::_16446
(0046EA95) Customdriveview::_16446
(0046EB24) Customdriveview::TCustomDriveView::IterateSubTree
(00481082) Driveview::TDriveView::ValidateDirectoryEx
(0046E7B5) Customdriveview::TCustomDriveView::ValidateDirectory
(00256CDF) Vcl::Extctrls::TTimer::Timer
(003C79D8) System::Classes::_18201
(0003DDE9) USER32.dll
(00034DA5) USER32.dll
(00032B15) USER32.dll
(000328DB) USER32.dll.DispatchMessageW

The problem happens rarely. I cannot reproduce it.

Moin. I have Windows 10 on Dell Inspiron 5580.
the error message came after wakeup from hibernation.
Best Ben

WinSCP 5.19.2

Error message:
Unzulässiger Zugriff auf einen Speicherbereich.

Stapelverfolgung:
(002B1AB3) Vcl::Comctrls::TTreeNode::GetTreeView
(0008788F) ntdll.dll
(00073EC1) ntdll.dll.KiUserExceptionDispatcher
(0046EA95) Customdriveview::_16446
(0046EA95) Customdriveview::_16446
(0046EA95) Customdriveview::_16446
(0046EA95) Customdriveview::_16446
(0046EB24) Customdriveview::TCustomDriveView::IterateSubTree
(00481082) Driveview::TDriveView::ValidateDirectoryEx
(0046E7B5) Customdriveview::TCustomDriveView::ValidateDirectory
(00256CDF) Vcl::Extctrls::TTimer::Timer
(003C79D8) System::Classes::_18201
(0003DDE9) USER32.dll
(00034DA5) USER32.dll
(00032B15) USER32.dll
(000328DB) 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 5.19.2

Error message:
Ошибка доступа к памяти.

Трассировка стека:
(002B1AB3) Vcl::Comctrls::TTreeNode::GetTreeView
(0008788F) ntdll.dll
(00073EC1) ntdll.dll.KiUserExceptionDispatcher
(0046EB24) Customdriveview::TCustomDriveView::IterateSubTree
(00481082) Driveview::TDriveView::ValidateDirectoryEx
(0046E7B5) Customdriveview::TCustomDriveView::ValidateDirectory
(00256CDF) Vcl::Extctrls::TTimer::Timer
(003C79D8) System::Classes::_18201
(0003DEB9) USER32.dll
(00034E75) USER32.dll
(00032BE5) USER32.dll
(000329AB) 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 5.17.10

Error message:
Invalid access to memory.

Stack trace:
(002AC573) Vcl::Comctrls::TTreeNode::GetTreeView
(0008788F) ntdll.dll
(00073EC1) ntdll.dll.KiUserExceptionDispatcher
(0044CB21) Customdriveview::_16446
(0044CB21) Customdriveview::_16446
(0044CBB0) Customdriveview::TCustomDriveView::IterateSubTree
(0045F2CE) Driveview::TDriveView::ValidateDirectoryEx
(0044C841) Customdriveview::TCustomDriveView::ValidateDirectory
(0025179F) Vcl::Extctrls::TTimer::Timer
(003A5978) System::Classes::_18201
(0003DEB9) USER32.dll
(00034E75) USER32.dll
(00032BE5) USER32.dll
(000329AB) USER32.dll.DispatchMessageW

The problem happens rarely. I cannot reproduce it.

WinSCP 5.19.2

Error message:
Invalid access to memory.

Stack trace:
(002B1AB3) Vcl::Comctrls::TTreeNode::GetTreeView
(0008788F) ntdll.dll
(00073EC1) ntdll.dll.KiUserExceptionDispatcher
(0046EA95) Customdriveview::_16446
(0046EA95) Customdriveview::_16446
(0046EA95) Customdriveview::_16446
(0046EB24) Customdriveview::TCustomDriveView::IterateSubTree
(00481082) Driveview::TDriveView::ValidateDirectoryEx
(0046E7B5) Customdriveview::TCustomDriveView::ValidateDirectory
(00256CDF) Vcl::Extctrls::TTimer::Timer
(003C79D8) System::Classes::_18201
(0003DEB9) USER32.dll
(00034E75) USER32.dll
(00032BE5) USER32.dll
(000329AB) 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 5.19

Error message:
Acceso a memoria no válido

Traza de la pila:
(002B1913) Vcl::Comctrls::TTreeNode::GetTreeView
(0008788F) ntdll.dll
(00073EC1) ntdll.dll.KiUserExceptionDispatcher
(0046E8F5) Customdriveview::_16446
(0046E8F5) Customdriveview::_16446
(0046E8F5) Customdriveview::_16446
(0046E984) Customdriveview::TCustomDriveView::IterateSubTree
(00480EDA) Driveview::TDriveView::ValidateDirectoryEx
(0046E615) Customdriveview::TCustomDriveView::ValidateDirectory
(00256B3F) Vcl::Extctrls::TTimer::Timer
(003C7838) System::Classes::_18201
(0003DEB9) USER32.dll
(00034E75) USER32.dll
(00032BE5) USER32.dll
(000329AB) 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 5.19.2

Error message:
Invalid access to memory.

Stack trace:
(002B1AB3) Vcl::Comctrls::TTreeNode::GetTreeView
(00087D7F) ntdll.dll
(00073221) ntdll.dll.KiUserExceptionDispatcher
(0046EB24) Customdriveview::TCustomDriveView::IterateSubTree
(00481082) Driveview::TDriveView::ValidateDirectoryEx
(0046E7B5) Customdriveview::TCustomDriveView::ValidateDirectory
(00256CDF) Vcl::Extctrls::TTimer::Timer
(003C79D8) System::Classes::_18201
(00043389) USER32.dll
(00023F87) USER32.dll
(000230D9) USER32.dll
(00022EBB) USER32.dll.DispatchMessageW
(0001C802)QIPCAP.dll

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 5.19.2

Error message:
Unzulässiger Zugriff auf einen Speicherbereich.

Stapelverfolgung:
(002B1AB3) Vcl::Comctrls::TTreeNode::GetTreeView
(00089BEF) ntdll.dll
(00070AB1) ntdll.dll.KiUserExceptionDispatcher
(0047F583) Driveview::TDriveView::RefreshRootNodes
(0047D94B) Driveview::TDriveView::InternalWndProc
(003C79D8) System::Classes::_18201
(0001D0B9) USER32.dll
(00027844) USER32.dll
(0002A140) USER32.dll
(000180D7) USER32.dll
(00017C1B) USER32.dll.DispatchMessageW

The problem happens rarely. I cannot reproduce it.

the computer was waking up from sleep mode.

WinSCP 5.17.10

Error message:
Invalid access to memory.

Stack trace:
(002AC573) Vcl::Comctrls::TTreeNode::GetTreeView
(0008788F) ntdll.dll
(00073EC1) ntdll.dll.KiUserExceptionDispatcher
(0045D7AB) Driveview::TDriveView::RefreshRootNodes
(0045BB2F) Driveview::TDriveView::InternalWndProc
(003A5978) System::Classes::_18201
(0003DEB9) USER32.dll
(00034E75) USER32.dll
(00032BE5) USER32.dll
(000329AB) 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 5.19.1

Error message:
Invalid access to memory.

Stack trace:
(002B1AA7)
(00088F2F) ntdll.dll
(000743C1) ntdll.dll.KiUserExceptionDispatcher
(0046EA89)
(0046EA89)
(0046EA89)
(0046EB18)
(0048106E)
(0046E7A9)
(00256CD3)
(003C79CC)
(000437A9) USER32.dll
(000242A7) USER32.dll
(000233F9) USER32.dll
(000231DB) 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 5.19

Error message:
Invalid access to memory.

Stack trace:
(002B1913) Vcl::Comctrls::TTreeNode::GetTreeView
(000878AF) ntdll.dll
(00073EE1) ntdll.dll.KiUserExceptionDispatcher
(0046E8F5) Customdriveview::_16446
(0046E8F5) Customdriveview::_16446
(0046E984) Customdriveview::TCustomDriveView::IterateSubTree
(00480EDA) Driveview::TDriveView::ValidateDirectoryEx
(0046E615) Customdriveview::TCustomDriveView::ValidateDirectory
(00256B3F) Vcl::Extctrls::TTimer::Timer
(003C7838) System::Classes::_18201
(0003DEB9) USER32.dll
(00034E75) USER32.dll
(00032BE5) USER32.dll
(000329AB) 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 5.17.9

Error message:
Invalid access to memory.

Stack trace:
(002AC54F) Vcl::Comctrls::TTreeNode::GetTreeView
(0008788F) ntdll.dll
(00073EC1) ntdll.dll.KiUserExceptionDispatcher
(0044CAFD) Customdriveview::_16446
(0044CAFD) Customdriveview::_16446
(0044CB8C) Customdriveview::TCustomDriveView::IterateSubTree
(0045F2AA) Driveview::TDriveView::ValidateDirectoryEx
(0044C81D) Customdriveview::TCustomDriveView::ValidateDirectory
(0025177B) Vcl::Extctrls::TTimer::Timer
(003A5954) System::Classes::_18201
(0003DEB9) USER32.dll
(00034E75) USER32.dll
(00032BE5) USER32.dll
(000329AB) 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 5.19.1

Error message:
Ошибка доступа к памяти.

Трассировка стека:
(002B1AA7) Vcl::Comctrls::TTreeNode::GetTreeView
(000878AF) ntdll.dll
(00073EE1) ntdll.dll.KiUserExceptionDispatcher
(0046EA89) Customdriveview::_16446
(0046EA89) Customdriveview::_16446
(0046EA89) Customdriveview::_16446
(0046EB18) Customdriveview::TCustomDriveView::IterateSubTree
(0048106E) Driveview::TDriveView::ValidateDirectoryEx
(0046E7A9) Customdriveview::TCustomDriveView::ValidateDirectory
(00256CD3) Vcl::Extctrls::TTimer::Timer
(003C79CC) System::Classes::_18201
(0003DEB9) USER32.dll
(00034E75) USER32.dll
(00032BE5) USER32.dll
(000329AB) 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 5.19.1

Error message:
Ошибка доступа к памяти.

Трассировка стека:
(002B1AA7) Vcl::Comctrls::TTreeNode::GetTreeView
(000878AF) ntdll.dll
(00073EE1) ntdll.dll.KiUserExceptionDispatcher
(0046EA89) Customdriveview::_16446
(0046EA89) Customdriveview::_16446
(0046EA89) Customdriveview::_16446
(0046EB18) Customdriveview::TCustomDriveView::IterateSubTree
(0048106E) Driveview::TDriveView::ValidateDirectoryEx
(0046E7A9) Customdriveview::TCustomDriveView::ValidateDirectory
(00256CD3) Vcl::Extctrls::TTimer::Timer
(003C79CC) System::Classes::_18201
(0003DEB9) USER32.dll
(00034E75) USER32.dll
(00032BE5) USER32.dll
(000329AB) 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 5.19.1

Error message:
Invalid access to memory.

Stack trace:
(002B1AA7) Vcl::Comctrls::TTreeNode::GetTreeView
(0008788F) ntdll.dll
(00073EC1) ntdll.dll.KiUserExceptionDispatcher
(0046EA89) Customdriveview::_16446
(0046EB18) Customdriveview::TCustomDriveView::IterateSubTree
(0048106E) Driveview::TDriveView::ValidateDirectoryEx
(0046E7A9) Customdriveview::TCustomDriveView::ValidateDirectory
(00256CD3) Vcl::Extctrls::TTimer::Timer
(003C79CC) System::Classes::_18201
(0003DEB9) USER32.dll
(00034E75) USER32.dll
(00032BE5) USER32.dll
(000329AB) 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 5.19.1

Error message:
Invalid access to memory.

Stack trace:
(002B1AA7) Vcl::Comctrls::TTreeNode::GetTreeView
(0008788F) ntdll.dll
(00073EC1) ntdll.dll.KiUserExceptionDispatcher
(0046EA89) Customdriveview::_16446
(0046EA89) Customdriveview::_16446
(0046EB18) Customdriveview::TCustomDriveView::IterateSubTree
(0048106E) Driveview::TDriveView::ValidateDirectoryEx
(0046E7A9) Customdriveview::TCustomDriveView::ValidateDirectory
(00256CD3) Vcl::Extctrls::TTimer::Timer
(003C79CC) System::Classes::_18201
(0003DEB9) USER32.dll
(00034E75) USER32.dll
(00032BE5) USER32.dll
(000329AB) 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.)>
I cannot think of what could cause it. Two WebDAV sessions were open. The only suspicious thing for me could be the listing of folders: more than 16000. But the listing was already loaded and I left the app idle for some time. It behaved stable while I was working with these big folders before that.
<If relevant, consider attaching a session log file or a screenshot)>
OS info: win 10 enterprise, 64 bit, 20H2, 19042.1083, Windows Feature Experience Pack 120.2212.3530.0

WinSCP 5.17.10

Error message:
Invalid access to memory.

Stack trace:
(002AC573) Vcl::Comctrls::TTreeNode::GetTreeView
(0008788F) ntdll.dll
(00073EC1) ntdll.dll.KiUserExceptionDispatcher
(0044CB21) Customdriveview::_16446
(0044CB21) Customdriveview::_16446
(0044CB21) Customdriveview::_16446
(0044CBB0) Customdriveview::TCustomDriveView::IterateSubTree
(0045F2CE) Driveview::TDriveView::ValidateDirectoryEx
(0044C841) Customdriveview::TCustomDriveView::ValidateDirectory
(0025179F) Vcl::Extctrls::TTimer::Timer
(003A5978) System::Classes::_18201
(0003DEB9) USER32.dll
(00034E75) USER32.dll
(00032BE5) USER32.dll
(000329AB) USER32.dll.DispatchMessageW

The problem happens rarely. I cannot reproduce it.

I have no idea how this happened. I just saw the error message when I tried to use WinSCP to transfer some files.

WinSCP 5.17.9

Error message:
Invalid access to memory.

Stack trace:
(002AC54F) Vcl::Comctrls::TTreeNode::GetTreeView
(000878AF) ntdll.dll
(00073EE1) ntdll.dll.KiUserExceptionDispatcher
(0044CB8C) Customdriveview::TCustomDriveView::IterateSubTree
(0045F2AA) Driveview::TDriveView::ValidateDirectoryEx
(0044C81D) Customdriveview::TCustomDriveView::ValidateDirectory
(0045CF31) Driveview::TDriveView::Change
(002B0D86) Vcl::Comctrls::TCustomTreeView::CNNotify
(0044C335) Customdriveview::TCustomDriveView::CNNotify
(0027ACF1) Vcl::Controls::TWinControl::WndProc
(002B1042) Vcl::Comctrls::TCustomTreeView::WndProc
(0027AE57) Vcl::Controls::_17076
(0027ACF1) Vcl::Controls::TWinControl::WndProc
(0027A338) Vcl::Controls::TWinControl::MainWndProc
(003A5954) System::Classes::_18201
(0003DEB9) USER32.dll
(00034E75) USER32.dll
(00034A75) USER32.dll
(0003863D) USER32.dll
(00073E9B) ntdll.dll.KiUserCallbackDispatcher
(0003289A) USER32.dll.SendMessageW
(00068881) COMCTL32.DLL
(000288A2) COMCTL32.DLL
(00028777) COMCTL32.DLL
(0003EC68) COMCTL32.DLL
(0003DEB9) USER32.dll
(00034E75) USER32.dll
(00034552) USER32.dll
(000326F6) USER32.dll.CallWindowProcW
(0027AE02) Vcl::Controls::TWinControl::DefaultHandler
(0027ACF1) Vcl::Controls::TWinControl::WndProc
(002B1042) Vcl::Comctrls::TCustomTreeView::WndProc
(003A5954) System::Classes::_18201
(0003DEB9) USER32.dll
(00034E75) USER32.dll
(00034A75) USER32.dll
(0003863D) USER32.dll
(00073E9B) ntdll.dll.KiUserCallbackDispatcher
(0003289A) USER32.dll.SendMessageW
(00362CDF) Winapi::Commctrl::TreeView_SelectItem
(0044B295) Customdriveview::TCustomDriveView::CreateWnd
(00279D82) Vcl::Controls::TWinControl::CreateHandle
(002761AD) Vcl::Controls::TControl::WndProc
(0027ACF1) Vcl::Controls::TWinControl::WndProc
(002B1042) Vcl::Comctrls::TCustomTreeView::WndProc
(00279F42) Vcl::Controls::TWinControl::RecreateWnd
(0027ACF1) 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 5.17.10

Error message:
Invalid access to memory.

Stack trace:
(002AC573) Vcl::Comctrls::TTreeNode::GetTreeView
(0007E1AF) ntdll.dll
(0006BD91) ntdll.dll.KiUserExceptionDispatcher
(0044CB21) Customdriveview::_16446
(0044CB21) Customdriveview::_16446
(0044CB21) Customdriveview::_16446
(0044CBB0) Customdriveview::TCustomDriveView::IterateSubTree
(0045F2CE) Driveview::TDriveView::ValidateDirectoryEx
(0044C841) Customdriveview::TCustomDriveView::ValidateDirectory
(0025179F) Vcl::Extctrls::TTimer::Timer
(003A5978) 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 5.17.7

Error message:
Invalid access to memory.

Stack trace:
(002AB7A3) Vcl::Comctrls::TTreeNode::GetTreeView
(0007CEBF) ntdll.dll
(0006A6FA) ntdll.dll.KiUserExceptionDispatcher
(002ABDFC) Vcl::Comctrls::TTreeNode::Expand
(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
(00033411) USER32.dll
(0001226B) USER32.dll
(00011E5B) USER32.dll
(00019827) USER32.dll
(0006A6D4) ntdll.dll.KiUserCallbackDispatcher
(0001150E) USER32.dll.SendMessageW
(00061118) COMCTL32.DLL
(00033630) COMCTL32.DLL
(00033497) COMCTL32.DLL
(0002FC63) COMCTL32.DLL
(00033411) USER32.dll
(0001226B) USER32.dll
(00012012) USER32.dll.CallWindowProcW
(0027A056) Vcl::Controls::TWinControl::DefaultHandler
(00279F45) Vcl::Controls::TWinControl::WndProc
(002B0296) Vcl::Comctrls::TCustomTreeView::WndProc
(003A4BA8) System::Classes::_18201
(00033411) USER32.dll
(0001226B) USER32.dll
(00012012) USER32.dll.CallWindowProcW
(0047BF0F) Dragdrop::TDragDrop::WndMethod
(003A4BA8) System::Classes::_18201
(00033411) USER32.dll
(0001226B) USER32.dll
(00011E5B) USER32.dll
(00019827) USER32.dll
(0006A6D4) ntdll.dll.KiUserCallbac

The problem happens rarely. I cannot reproduce it.

No idea what happened, WinSCP was in the background for a few days and eventually just popped up this error. The program continues to function normally as far as I can tell.

WinSCP 5.17.10

Error message:
Invalid access to memory.

Stack trace:
(002AC573) Vcl::Comctrls::TTreeNode::GetTreeView
(000878AF) ntdll.dll
(00073EE1) ntdll.dll.KiUserExceptionDispatcher
(0044CB21) Customdriveview::_16446
(0044CB21) Customdriveview::_16446
(0044CB21) Customdriveview::_16446
(0044CB21) Customdriveview::_16446
(0044CBB0) Customdriveview::TCustomDriveView::IterateSubTree
(0045F2CE) Driveview::TDriveView::ValidateDirectoryEx
(0044C841) Customdriveview::TCustomDriveView::ValidateDirectory
(0025179F) Vcl::Extctrls::TTimer::Timer
(003A5978) System::Classes::_18201
(0003DEB9) USER32.dll
(00034E75) USER32.dll
(00032BE5) USER32.dll
(000329AB) 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 5.19

Error message:
Invalid access to memory.

Stack trace:
(002B1913) Vcl::Comctrls::TTreeNode::GetTreeView
(0008402F) ntdll.dll
(00071931) ntdll.dll.KiUserExceptionDispatcher
(0046E8F5) Customdriveview::_16446
(0046E984) Customdriveview::TCustomDriveView::IterateSubTree
(00480EDA) Driveview::TDriveView::ValidateDirectoryEx
(0046E615) Customdriveview::TCustomDriveView::ValidateDirectory
(00256B3F) Vcl::Extctrls::TTimer::Timer
(003C7838) 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 5.17.10

Error message:
Acesso inválido à memória

Rastreamento de pilha:
(002AC573) Vcl::Comctrls::TTreeNode::GetTreeView
(000878AF) ntdll.dll
(00073EE1) ntdll.dll.KiUserExceptionDispatcher
(0044CB21) Customdriveview::_16446
(0044CBB0) Customdriveview::TCustomDriveView::IterateSubTree
(0045F2CE) Driveview::TDriveView::ValidateDirectoryEx
(0044C841) Customdriveview::TCustomDriveView::ValidateDirectory
(0025179F) Vcl::Extctrls::TTimer::Timer
(003A5978) System::Classes::_18201
(0003DEB9) USER32.dll
(00034E75) USER32.dll
(00032BE5) USER32.dll
(000329AB) 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 5.17.10

Error message:
Invalid access to memory.

Stack trace:
(002AC573) Vcl::Comctrls::TTreeNode::GetTreeView
(000878AF) ntdll.dll
(00073EE1) ntdll.dll.KiUserExceptionDispatcher
(0044CB21) Customdriveview::_16446
(0044CB21) Customdriveview::_16446
(0044CB21) Customdriveview::_16446
(0044CBB0) Customdriveview::TCustomDriveView::IterateSubTree
(0045F2CE) Driveview::TDriveView::ValidateDirectoryEx
(0044C841) Customdriveview::TCustomDriveView::ValidateDirectory
(0025179F) Vcl::Extctrls::TTimer::Timer
(003A5978) System::Classes::_18201
(0003DEB9) USER32.dll
(00034E75) USER32.dll
(00032BE5) USER32.dll
(000329AB) 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 5.19

Error message:
Invalid access to memory.

Stack trace:
(002B1913) Vcl::Comctrls::TTreeNode::GetTreeView
(000878AF) ntdll.dll
(00073EE1) ntdll.dll.KiUserExceptionDispatcher
(0046E984) Customdriveview::TCustomDriveView::IterateSubTree
(00480EDA) Driveview::TDriveView::ValidateDirectoryEx
(0046E615) Customdriveview::TCustomDriveView::ValidateDirectory
(0047EB85) Driveview::TDriveView::Change
(002B614A) Vcl::Comctrls::TCustomTreeView::CNNotify
(0046E12D) Customdriveview::TCustomDriveView::CNNotify
(002800B5) Vcl::Controls::TWinControl::WndProc
(002B6406) Vcl::Comctrls::TCustomTreeView::WndProc
(0028021B) Vcl::Controls::_17076
(002800B5) Vcl::Controls::TWinControl::WndProc
(0027F6FC) Vcl::Controls::TWinControl::MainWndProc
(003C7838) System::Classes::_18201
(0003DEB9) USER32.dll
(00034E75) USER32.dll
(00034A75) USER32.dll
(0003863D) USER32.dll
(00073E9B) ntdll.dll.KiUserCallbackDispatcher
(0003289A) USER32.dll.SendMessageW
(00068881) COMCTL32.DLL
(000288A2) COMCTL32.DLL
(00028777) COMCTL32.DLL
(0003EC68) COMCTL32.DLL
(0003DEB9) USER32.dll
(00034E75) USER32.dll
(00034552) USER32.dll
(000326F6) USER32.dll.CallWindowProcW
(002801C6) Vcl::Controls::TWinControl::DefaultHandler
(002800B5) Vcl::Controls::TWinControl::WndProc
(002B6406) Vcl::Comctrls::TCustomTreeView::WndProc
(003C7838) System::Classes::_18201
(0003DEB9) USER32.dll
(00034E75) USER32.dll
(00034A75) USER32.dll
(0003863D) USER32.dll
(00073E9B) ntdll.dll.KiUserCallbackDispatcher
(0003289A) USER32.dll.SendMessageW
(00384D0F) Winapi::Commctrl::TreeView_SelectItem
(0046D08D) Customdriveview::TCustomDriveView::CreateWnd
(0027F146) Vcl::Controls::TWinControl::CreateHandle
(0027B571) Vcl::Controls::TControl::WndProc
(002800B5) Vcl::Controls::TWinControl::WndProc
(002B6406) Vcl::Comctrls::TCustomTreeView::WndProc
(0027F306) Vcl::Controls::TWinControl::RecreateWnd
(002800B5) 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 5.17.10

Error message:
Chyba přístupu do paměti.

Stack trace:
(002AC573) Vcl::Comctrls::TTreeNode::GetTreeView
(000878AF) ntdll.dll
(00073EE1) ntdll.dll.KiUserExceptionDispatcher
(0044CBB0) Customdriveview::TCustomDriveView::IterateSubTree
(0045F2CE) Driveview::TDriveView::ValidateDirectoryEx
(0044C841) Customdriveview::TCustomDriveView::ValidateDirectory
(0025179F) Vcl::Extctrls::TTimer::Timer
(003A5978) System::Classes::_18201
(0003DEB9) USER32.dll
(00034E75) USER32.dll
(00032BE5) USER32.dll
(000329AB) USER32.dll.DispatchMessageW

The problem happens rarely. I cannot reproduce it.

lanwal@... wrote:

WinSCP 5.17.10

Error message:
Ошибка доступа к памяти.

Трассировка стека:
(002AC573) Vcl::Comctrls::TTreeNode::GetTreeView
(00088F2F) ntdll.dll
(000743C1) ntdll.dll.KiUserExceptionDispatcher
(0044CBB0) Customdriveview::TCustomDriveView::IterateSubTree
(0045F2CE) Driveview::TDriveView::ValidateDirectoryEx
(0044C841) Customdriveview::TCustomDriveView::ValidateDirectory
(0025179F) Vcl::Extctrls::TTimer::Timer
(003A5978) System::Classes::_18201
(000437A9) USER32.dll
(000242A7) 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.

<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 5.17.10

Error message:
无效的内存访问。

Stack trace:
(002AC573) Vcl::Comctrls::TTreeNode::GetTreeView
(00087D6F) ntdll.dll
(00073211) ntdll.dll.KiUserExceptionDispatcher
(0044CB21) Customdriveview::_16446
(0044CBB0) Customdriveview::TCustomDriveView::IterateSubTree
(0045F2CE) Driveview::TDriveView::ValidateDirectoryEx
(0044C841) Customdriveview::TCustomDriveView::ValidateDirectory
(0025179F) Vcl::Extctrls::TTimer::Timer
(003A5978) System::Classes::_18201
(00043749) USER32.dll
(000250B7) USER32.dll
(00024209) USER32.dll
(00023FCB) 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 5.17.10

Error message:
Ошибка доступа к памяти.

Трассировка стека:
(002AC573) Vcl::Comctrls::TTreeNode::GetTreeView
(00088F2F) ntdll.dll
(000743C1) ntdll.dll.KiUserExceptionDispatcher
(0044CBB0) Customdriveview::TCustomDriveView::IterateSubTree
(0045F2CE) Driveview::TDriveView::ValidateDirectoryEx
(0044C841) Customdriveview::TCustomDriveView::ValidateDirectory
(0025179F) Vcl::Extctrls::TTimer::Timer
(003A5978) System::Classes::_18201
(000437A9) USER32.dll
(000242A7) USER32.dll
(000233F9) USER32.dll
(000231DB) 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.

Returning from sleep / hibernation.

WinSCP 5.18.5

Error message:
Invalid access to memory.

Stack trace:
(002B1853) Vcl::Comctrls::TTreeNode::GetTreeView
(0008788F) ntdll.dll
(00073EC1) ntdll.dll.KiUserExceptionDispatcher
(0046E72D) Customdriveview::_16446
(0046E7BC) Customdriveview::TCustomDriveView::IterateSubTree
(00480D12) Driveview::TDriveView::ValidateDirectoryEx
(0046E44D) Customdriveview::TCustomDriveView::ValidateDirectory
(00256A7F) Vcl::Extctrls::TTimer::Timer
(003C7678) System::Classes::_18201
(0003DEB9) USER32.dll
(00034E75) USER32.dll
(00032BE5) USER32.dll
(000329AB) USER32.dll.DispatchMessageW

The problem happens rarely. I cannot reproduce it.