<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 5.21

Error message:
Invalid access to memory.

Stack trace:
(002B260B) Vcl::Comctrls::TTreeNode::GetTreeView
(00097F7F) ntdll.dll
(000761E1) ntdll.dll.KiUserExceptionDispatcher
(0046FB45) Customdriveview::_16446
(0046FB45) Customdriveview::_16446
(0046FB45) Customdriveview::_16446
(0046FB45) Customdriveview::_16446
(0046FBD4) Customdriveview::TCustomDriveView::IterateSubTree
(00482522) Driveview::TDriveView::ValidateDirectoryEx
(0046F865) Customdriveview::TCustomDriveView::ValidateDirectory
(00257837) Vcl::Extctrls::TTimer::Timer
(003C8530) System::Classes::_18201
(00046C90) USER32.dll
(00026145) USER32.dll
(00024A73) USER32.dll
(000245AB) USER32.dll.DispatchMessageW

The problem happens rarely. I cannot reproduce it.

Exiting from sleeping state (Open my laptop screen), veeeeery long time to login and recover my session


WinSCP 5.19.2

Error message:
Accès mémoire invalide.

Trace de la pile :
(002B1AB3) Vcl::Comctrls::TTreeNode::GetTreeView
(0008784F) 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
(0003FFC9) USER32.dll
(00036F95) USER32.dll
(00034CF5) USER32.dll
(00034ABB) 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 5.19.6

Error message:
Invalid access to memory.

Stack trace:
(002B1C3F) Vcl::Comctrls::TTreeNode::GetTreeView
(0008786F) ntdll.dll
(00073EE1) ntdll.dll.KiUserExceptionDispatcher
(0046ECB0) Customdriveview::TCustomDriveView::IterateSubTree
(0048120E) Driveview::TDriveView::ValidateDirectoryEx
(0046E941) Customdriveview::TCustomDriveView::ValidateDirectory
(00256E6B) Vcl::Extctrls::TTimer::Timer
(003C7B64) System::Classes::_18201
(000401F9) USER32.dll
(000371C5) USER32.dll
(00034F25) USER32.dll
(00034CEB) USER32.dll.DispatchMessageW

The problem happens rarely. I cannot reproduce it.

WinSCP session active when closing laptop lid (presume Windows became suspended but with Win 11 it's hard to be sure); network access would definitely have been severed while logged out. Error shown after logging back in.

WinSCP 5.19.6

Error message:
Invalid access to memory.

Stack trace:
(002B1C3F) Vcl::Comctrls::TTreeNode::GetTreeView
(00097F7F) ntdll.dll
(000761E1) 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
(00046C90) USER32.dll
(00026145) USER32.dll
(00024A73) USER32.dll
(000245AB) 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 5.19.6

Error message:
Acceso a memoria no válido

Traza de la pila:
(002B1C3F) Vcl::Comctrls::TTreeNode::GetTreeView
(0008786F) ntdll.dll
(00073EE1) ntdll.dll.KiUserExceptionDispatcher
(0046ECB0) Customdriveview::TCustomDriveView::IterateSubTree
(0048120E) Driveview::TDriveView::ValidateDirectoryEx
(0046E941) Customdriveview::TCustomDriveView::ValidateDirectory
(0047EEB9) Driveview::TDriveView::Change
(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
(000401F9) USER32.dll
(000371C5) USER32.dll
(00036DB5) USER32.dll
(0003A98D) USER32.dll
(00073E9B) ntdll.dll.KiUserCallbackDispatcher
(00034BDA) USER32.dll.SendMessageW
(00068881) COMCTL32.DLL
(00028892) COMCTL32.DLL
(00028767) COMCTL32.DLL
(0003EC58) COMCTL32.DLL
(000401F9) USER32.dll
(000371C5) USER32.dll
(00036892) USER32.dll
(00034A36) USER32.dll.CallWindowProcW
(002804F2) Vcl::Controls::TWinControl::DefaultHandler
(002803E1) Vcl::Controls::TWinControl::WndProc
(002B6732) Vcl::Comctrls::TCustomTreeView::WndProc
(003C7B64) System::Classes::_18201
(000401F9) USER32.dll
(000371C5) USER32.dll
(00036DB5) USER32.dll
(0003A98D) USER32.dll
(00073E9B) ntdll.dll.KiUserCallbackDispatcher
(00034BDA) USER32.dll.SendMessageW
(0038503B) Winapi::Commctrl::TreeView_SelectItem
(0046D3B9) Customdriveview::TCustomDriveView::CreateWnd
(0027F472) Vcl::Controls::TWinControl::CreateHandle
(0027B89D) Vcl::Controls::TControl::WndProc
(002803E1) Vcl::Controls::TWinControl::WndProc
(002B6732) Vcl::Comctrls::TCustomTreeView::WndProc
(0027F632) Vcl::Controls::TWinControl::RecreateWnd
(002803E1) 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 5.19.6

Error message:
Nieprawidłowy dostęp do pamięci.

Stack trace:
(002B1C3F) Vcl::Comctrls::TTreeNode::GetTreeView
(0008784F) ntdll.dll
(00073EC1) ntdll.dll.KiUserExceptionDispatcher
(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
(0003FFC9) USER32.dll
(00036F95) USER32.dll
(00034CF5) USER32.dll
(00034ABB) 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 5.19.6

Error message:
Unzulässiger Zugriff auf einen Speicherbereich.

Stapelverfolgung:
(002B1C3F) Vcl::Comctrls::TTreeNode::GetTreeView
(00097F7F) ntdll.dll
(000761E1) 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
(00046C90) USER32.dll
(00026145) USER32.dll
(00024A73) USER32.dll
(000245AB) 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 5.19.6

Error message:
Acceso a memoria no válido

Traza de la pila:
(002B1C3F) Vcl::Comctrls::TTreeNode::GetTreeView
(00097F7F) ntdll.dll
(000761E1) 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
(00046C90) USER32.dll
(00026145) USER32.dll
(00024A73) USER32.dll
(000245AB) 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 5.19.6

Error message:
Invalid access to memory.

Stack trace:
(002B1C3F) Vcl::Comctrls::TTreeNode::GetTreeView
(0008784F) ntdll.dll
(00073EC1) 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
(0003FFC9) USER32.dll
(00036F95) USER32.dll
(00034CF5) USER32.dll
(00034ABB) USER32.dll.DispatchMessageW

The problem happens rarely. I cannot reproduce it.

I was starting my computer up from being asleep over the weekend. This message was waiting for me, hence there were no actions I took to provoke this. I had left it open when I put the computer to sleep on the Friday.
<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 5.19.6

Error message:
Invalid access to memory.

Stack trace:
(002B1C3F) Vcl::Comctrls::TTreeNode::GetTreeView
(0008784F) ntdll.dll
(00073EC1) 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
(0003FFC9) USER32.dll
(00036F95) USER32.dll
(00034CF5) USER32.dll
(00034ABB) 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 5.19.6

Error message:
Acceso a memoria no válido

Traza de la pila:
(002B1C3F) Vcl::Comctrls::TTreeNode::GetTreeView
(00097F7F) ntdll.dll
(000761E1) 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
(00046C90) USER32.dll
(00026145) USER32.dll
(00024A73) USER32.dll
(000245AB) 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 5.19.6

Error message:
无效的内存访问。

Stack trace:
(002B1C3F) Vcl::Comctrls::TTreeNode::GetTreeView
(0008784F) ntdll.dll
(00073EC1) ntdll.dll.KiUserExceptionDispatcher
(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
(0003FFC9) USER32.dll
(00036F95) USER32.dll
(00034CF5) USER32.dll
(00034ABB) USER32.dll.DispatchMessageW

The problem happens rarely. I cannot reproduce it.

I don't know what happened, WinSCP was running idle in the background for a few days without an active connection. Switched to WinSCP window, and was greeted with this error.

WinSCP 5.19.6

Error message:
Invalid access to memory.

Stack trace:
(002B1C3F) Vcl::Comctrls::TTreeNode::GetTreeView
(00097F7F) ntdll.dll
(000761E1) 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
(00046C90) USER32.dll
(00026145) USER32.dll
(00024A73) USER32.dll
(000245AB) 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 5.19.6

Error message:
Unzulässiger Zugriff auf einen Speicherbereich.

Stapelverfolgung:
(002B1C3F) Vcl::Comctrls::TTreeNode::GetTreeView
(00097F7F) ntdll.dll
(000761E1) 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
(00046C90) USER32.dll
(00026145) USER32.dll
(00024A73) USER32.dll
(000245AB) 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:
メモリのアクセス違反

スタック トレース:
(002B1C3F) Vcl::Comctrls::TTreeNode::GetTreeView
(0008784F) ntdll.dll
(00073EC1) 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
(0003FFC9) USER32.dll
(00036F95) USER32.dll
(00034CF5) USER32.dll
(00034ABB) 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 5.19.6

Error message:
Invalid access to memory.

Stack trace:
(002B1C3F) Vcl::Comctrls::TTreeNode::GetTreeView
(0008788F) ntdll.dll
(00073EC1) 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
(00040099) USER32.dll
(00037055) USER32.dll
(00034DC5) USER32.dll
(00034B8B) 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 5.19.6

Error message:
Unzulässiger Zugriff auf einen Speicherbereich.

Stapelverfolgung:
(002B1C3F) Vcl::Comctrls::TTreeNode::GetTreeView
(00097F7F) ntdll.dll
(000761E1) 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
(00046C90) USER32.dll
(00026145) USER32.dll
(00024A73) USER32.dll
(000245AB) USER32.dll.DispatchMessageW

The problem happens rarely. I cannot reproduce it.

I'm not sure when this happened. I have changed my internet connection between cellular and WiFi couple of times today and at that time my Cisco VPN connection is interupted for a short time too.

No clue what has happened since this winscp session has been behind other windows for a while.

-Pasi

WinSCP 5.19.1

Error message:
Invalid access to memory.

Stack trace:
(002B1AA7) Vcl::Comctrls::TTreeNode::GetTreeView
(0008784F) ntdll.dll
(00073EC1) 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
(0003FFC9) USER32.dll
(00036F95) USER32.dll
(00034CF5) USER32.dll
(00034ABB) USER32.dll.DispatchMessageW

The problem happens rarely. I cannot reproduce it.

I left WinSCP running when taking my laptop home from the office. After opening it up on a different network, I received this error.

WinSCP 5.19.6

Error message:
Invalid access to memory.

Stack trace:
(002B1C3F) Vcl::Comctrls::TTreeNode::GetTreeView
(00097F7F) ntdll.dll
(000761E1) 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
(00046C90) USER32.dll
(00026145) USER32.dll
(00024A73) USER32.dll
(000245AB) 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
(0046EBE4) Customdriveview::TCustomDriveView::IterateSubTree
(00481142) Driveview::TDriveView::ValidateDirectoryEx
(0046E875) Customdriveview::TCustomDriveView::ValidateDirectory
(00256D9F) Vcl::Extctrls::TTimer::Timer
(003C7A98) System::Classes::_18201
(0003FE89) USER32.dll
(00036E45) USER32.dll
(00034BB5) USER32.dll
(0003497B) 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
(0008788F) ntdll.dll
(00073EC1) ntdll.dll.KiUserExceptionDispatcher
(0046E8F5) Customdriveview::_16446
(0046E8F5) Customdriveview::_16446
(0046E8F5) Customdriveview::_16446
(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
(0003FE89) USER32.dll
(00036E45) USER32.dll
(00034BB5) USER32.dll
(0003497B) 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 5.19.6

Error message:
Invalid access to memory.

Stack trace:
(002B1C3F) Vcl::Comctrls::TTreeNode::GetTreeView
(0008784F) ntdll.dll
(00073EC1) 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
(0003FFC9) USER32.dll
(00036F95) USER32.dll
(00034CF5) USER32.dll
(00034ABB) 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 5.19.6

Error message:
Accès mémoire invalide.

Trace de la pile :
(002B1C3F) Vcl::Comctrls::TTreeNode::GetTreeView
(0008788F) ntdll.dll
(00073EC1) ntdll.dll.KiUserExceptionDispatcher
(0047F70F) Driveview::TDriveView::RefreshRootNodes
(0047DAD7) Driveview::TDriveView::InternalWndProc
(003C7B64) System::Classes::_18201
(0003FE89) USER32.dll
(00036E45) USER32.dll
(00034BB5) USER32.dll
(0003497B) USER32.dll.DispatchMessageW

The problem happens rarely. I cannot reproduce it.

@nakamori: 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 5.19.5

Error message:
メモリのアクセス違反

スタック トレース:
(002B1C3F) Vcl::Comctrls::TTreeNode::GetTreeView
(0008788F) ntdll.dll
(00073EC1) 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
(00040099) USER32.dll
(00037055) USER32.dll
(00034DC5) USER32.dll
(00034B8B) 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
(0046EB55) Customdriveview::_16446
(0046EBE4) Customdriveview::TCustomDriveView::IterateSubTree
(00481142) Driveview::TDriveView::ValidateDirectoryEx
(0046E875) Customdriveview::TCustomDriveView::ValidateDirectory
(00256D9F) Vcl::Extctrls::TTimer::Timer
(003C7A98) System::Classes::_18201
(00040099) USER32.dll
(00037055) USER32.dll
(00034DC5) USER32.dll
(00034B8B) 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:
Ошибка доступа к памяти.

Трассировка стека:
(002B1C3F)
(0008225F) ntdll.dll
(0006FDBA) ntdll.dll.KiUserExceptionDispatcher
(0046ECB0)
(0048120E)
(0046E941)
(00256E6B)
(003C7B64)
(0002C2D1) USER32.dll
(0000C305) USER32.dll
(0000BC4F) USER32.dll
(0000BA0B) USER32.dll.DispatchMessageW

The problem happens rarely. I cannot reproduce it.

I can't reproduce IT.

WinSCP 5.19.3

Error message:
Accès mémoire invalide.

Trace de la pile :
(002B1B73) Vcl::Comctrls::TTreeNode::GetTreeView
(0008788F) ntdll.dll
(00073EC1) 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
(0003FE89) USER32.dll
(00036E45) USER32.dll
(00034BB5) USER32.dll
(0003497B) USER32.dll.DispatchMessageW

The problem happens rarely. I cannot reproduce it.

@cl: 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.

When moving 2 zip file from WinSCP (local files) to a Windows 11 explorer window by drag & drop (one after the other), when dropping the second file the Windows 11 explorer crashes completely and restarts.

WinSCP 5.19.6

Error message:
Unzulässiger Zugriff auf einen Speicherbereich.

Stapelverfolgung:
(002B1C3F) Vcl::Comctrls::TTreeNode::GetTreeView
(00097AFF) ntdll.dll
(00076021) 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
(00046CE0) USER32.dll
(00026195) USER32.dll
(00024AC3) USER32.dll
(000245FB) 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.

Left the application open while system was in sleep mode overnight.

WinSCP 5.19.6

Error message:
Invalid access to memory.

Stack trace:
(002B1C3F) Vcl::Comctrls::TTreeNode::GetTreeView
(0008788F) ntdll.dll
(00073EC1) 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
(00040099) USER32.dll
(00037055) USER32.dll
(00034DC5) USER32.dll
(00034B8B) 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.)>
just left unused for a week or to
<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
(0046EBE4) Customdriveview::TCustomDriveView::IterateSubTree
(00481142) Driveview::TDriveView::ValidateDirectoryEx
(0046E875) Customdriveview::TCustomDriveView::ValidateDirectory
(00256D9F) Vcl::Extctrls::TTimer::Timer
(003C7A98) System::Classes::_18201
(00040099) USER32.dll
(00037055) USER32.dll
(00034DC5) USER32.dll
(00034B8B) 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 5.19.6

Error message:
Invalid access to memory.

Stack trace:
(002B1C3F) Vcl::Comctrls::TTreeNode::GetTreeView
(0008788F) ntdll.dll
(00073EC1) 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
(00040099) USER32.dll
(00037055) USER32.dll
(00034DC5) USER32.dll
(00034B8B) 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
(00097AFF) ntdll.dll
(00076021) 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
(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:
Acceso a memoria no válido

Traza de la pila:
(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
(00040099) USER32.dll
(00037055) USER32.dll
(00034DC5) USER32.dll
(00034B8B) 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
(0008544F) ntdll.dll
(00072A01) ntdll.dll.KiUserExceptionDispatcher
(0046ECB0) Customdriveview::TCustomDriveView::IterateSubTree
(0048120E) Driveview::TDriveView::ValidateDirectoryEx
(0046E941) Customdriveview::TCustomDriveView::ValidateDirectory
(00256E6B) Vcl::Extctrls::TTimer::Timer
(003C7B64) System::Classes::_18201
(00044CB9) USER32.dll
(000357D7) USER32.dll
(00034916) USER32.dll
(000346EB) 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 5.19.6

Error message:
Ошибка доступа к памяти.

Трассировка стека:
(002B1C3F) Vcl::Comctrls::TTreeNode::GetTreeView
(0008788F) ntdll.dll
(00073EC1) ntdll.dll.KiUserExceptionDispatcher
(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
(00040099) USER32.dll
(00037055) USER32.dll
(00034DC5) USER32.dll
(00034B8B) 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 5.19.6

Error message:
Acceso a memoria no válido

Traza de la pila:
(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
(0046ECB0) Customdriveview::TCustomDriveView::IterateSubTree
(0048120E) Driveview::TDriveView::ValidateDirectoryEx
(0046E941) Customdriveview::TCustomDriveView::ValidateDirectory
(00256E6B) Vcl::Extctrls::TTimer::Timer
(003C7B64) 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 5.19.6

Error message:
Accesso alla memoria non valido.

Stack trace:
(002B1C3F) Vcl::Comctrls::TTreeNode::GetTreeView
(0008788F) ntdll.dll
(00073EC1) ntdll.dll.KiUserExceptionDispatcher
(0046ECB0) Customdriveview::TCustomDriveView::IterateSubTree
(0048120E) Driveview::TDriveView::ValidateDirectoryEx
(0046E941) Customdriveview::TCustomDriveView::ValidateDirectory
(0047EEB9) Driveview::TDriveView::Change
(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
(0003FDE9) USER32.dll
(00036DA5) USER32.dll
(000369A5) USER32.dll
(0003A56D) USER32.dll
(00073E7B) ntdll.dll.KiUserCallbackDispatcher
(000347CA) USER32.dll.SendMessageW
(00068881) COMCTL32.DLL
(00028892) COMCTL32.DLL
(00028767) COMCTL32.DLL
(0003EC58) COMCTL32.DLL
(0003FDE9) USER32.dll
(00036DA5) USER32.dll
(00036482) USER32.dll
(00034626) USER32.dll.CallWindowProcW
(002804F2) Vcl::Controls::TWinControl::DefaultHandler
(002803E1) Vcl::Controls::TWinControl::WndProc
(002B6732) Vcl::Comctrls::TCustomTreeView::WndProc
(003C7B64) System::Classes::_18201
(0003FDE9) USER32.dll
(00036DA5) USER32.dll
(000369A5) USER32.dll
(0003A56D) USER32.dll
(00073E7B) ntdll.dll.KiUserCallbackDispatcher
(000347CA) USER32.dll.SendMessageW
(0038503B) Winapi::Commctrl::TreeView_SelectItem
(0046D3B9) Customdriveview::TCustomDriveView::CreateWnd
(0027F472) Vcl::Controls::TWinControl::CreateHandle
(0027B89D) Vcl::Controls::TControl::WndProc
(002803E1) Vcl::Controls::TWinControl::WndProc
(002B6732) Vcl::Comctrls::TCustomTreeView::WndProc
(0027F632) Vcl::Controls::TWinControl::RecreateWnd
(002803E1) 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 5.19.6

Error message:
Accès mémoire invalide.

Trace de la pile :
(002B1C3F) Vcl::Comctrls::TTreeNode::GetTreeView
(0009574F) ntdll.dll
(00075181) ntdll.dll.KiUserExceptionDispatcher
(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
(00047E11) USER32.dll
(00028605) USER32.dll
(00027110) USER32.dll
(00026C3B) 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 5.19.6

Error message:
Érvénytelen memóriaelérés

Veremkivonat:
(002B1C3F) Vcl::Comctrls::TTreeNode::GetTreeView
(00097AFF) ntdll.dll
(00076021) ntdll.dll.KiUserExceptionDispatcher
(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 5.19.6

Error message:
Invalid access to memory.

Stack trace:
(002B1C3F) Vcl::Comctrls::TTreeNode::GetTreeView
(0008788F) ntdll.dll
(00073EC1) ntdll.dll.KiUserExceptionDispatcher
(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
(00040099) USER32.dll
(00037055) USER32.dll
(00034DC5) USER32.dll
(00034B8B) 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 5.19.6

Error message:
Unzulässiger Zugriff auf einen Speicherbereich.

Stapelverfolgung:
(002B1C3F) Vcl::Comctrls::TTreeNode::GetTreeView
(00097AFF) ntdll.dll
(00076021) ntdll.dll.KiUserExceptionDispatcher
(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 5.19.4

Error message:
Unzulässiger Zugriff auf einen Speicherbereich.

Stapelverfolgung:
(002B1B73) Vcl::Comctrls::TTreeNode::GetTreeView
(000852DF) ntdll.dll
(000729A1) 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
(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 5.19.6

Error message:
Unzulässiger Zugriff auf einen Speicherbereich.

Stapelverfolgung:
(002B1C3F) Vcl::Comctrls::TTreeNode::GetTreeView
(00097AFF) ntdll.dll
(00076021) ntdll.dll.KiUserExceptionDispatcher
(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.

Using WinSCP to download data files and came back to check progress when I saw the error message.

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
(0046EB24) Customdriveview::TCustomDriveView::IterateSubTree
(00481082) Driveview::TDriveView::ValidateDirectoryEx
(0046E7B5) Customdriveview::TCustomDriveView::ValidateDirectory
(0047ED2D) Driveview::TDriveView::Change
(002B62EA) Vcl::Comctrls::TCustomTreeView::CNNotify
(0046E2CD) Customdriveview::TCustomDriveView::CNNotify
(00280255) Vcl::Controls::TWinControl::WndProc
(002B65A6) Vcl::Comctrls::TCustomTreeView::WndProc
(002803BB) Vcl::Controls::_17076
(00280255) Vcl::Controls::TWinControl::WndProc
(0027F89C) Vcl::Controls::TWinControl::MainWndProc
(003C79D8) System::Classes::_18201
(00041ED9) USER32.dll
(00038E95) USER32.dll
(00038A95) USER32.dll
(0003C65D) USER32.dll
(00073E9B) ntdll.dll.KiUserCallbackDispatcher
(000368BA) USER32.dll.SendMessageW
(00068881) COMCTL32.DLL
(00028892) COMCTL32.DLL
(00028767) COMCTL32.DLL
(0003EC58) COMCTL32.DLL
(00041ED9) USER32.dll
(00038E95) USER32.dll
(00038572) USER32.dll
(00036716) USER32.dll.CallWindowProcW
(00280366) Vcl::Controls::TWinControl::DefaultHandler
(00280255) Vcl::Controls::TWinControl::WndProc
(002B65A6) Vcl::Comctrls::TCustomTreeView::WndProc
(003C79D8) System::Classes::_18201
(00041ED9) USER32.dll
(00038E95) USER32.dll
(00038A95) USER32.dll
(0003C65D) USER32.dll
(00073E9B) ntdll.dll.KiUserCallbackDispatcher
(000368BA) USER32.dll.SendMessageW
(00384EAF) Winapi::Commctrl::TreeView_SelectItem
(0046D22D) Customdriveview::TCustomDriveView::CreateWnd
(0027F2E6) Vcl::Controls::TWinControl::CreateHandle
(0027B711) Vcl::Controls::TControl::WndProc
(00280255) Vcl::Controls::TWinControl::WndProc
(002B65A6) Vcl::Comctrls::TCustomTreeView::WndProc
(0027F4A6) Vcl::Controls::TWinControl::RecreateWnd
(00280255) 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 5.19.5

Error message:
Invalid access to memory.

Stack trace:
(002B1C3F) Vcl::Comctrls::TTreeNode::GetTreeView
(000878AF) ntdll.dll
(00073EE1) ntdll.dll.KiUserExceptionDispatcher
(0046ECB0) Customdriveview::TCustomDriveView::IterateSubTree
(0048120E) Driveview::TDriveView::ValidateDirectoryEx
(0046E941) Customdriveview::TCustomDriveView::ValidateDirectory
(00256E6B) Vcl::Extctrls::TTimer::Timer
(003C7B64) System::Classes::_18201
(00041ED9) USER32.dll
(00038E95) USER32.dll
(00036C05) USER32.dll
(000369CB) 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)
(0008223F) ntdll.dll
(0006FDBA) ntdll.dll.KiUserExceptionDispatcher
(0046EA95)
(0046EA95)
(0046EA95)
(0046EA95)
(0046EB24)
(00481082)
(0046E7B5)
(00256CDF)
(003C79D8)
(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 5.19.5

Error message:
Invalid access to memory.

Stack trace:
(002B1C3F) Vcl::Comctrls::TTreeNode::GetTreeView
(00088FCF) ntdll.dll
(00074221) ntdll.dll.KiUserExceptionDispatcher
(0046ECB0) Customdriveview::TCustomDriveView::IterateSubTree
(0048120E) Driveview::TDriveView::ValidateDirectoryEx
(0046E941) Customdriveview::TCustomDriveView::ValidateDirectory
(00256E6B) Vcl::Extctrls::TTimer::Timer
(003C7B64) System::Classes::_18201
(00043719) USER32.dll
(00024257) USER32.dll
(000233A9) USER32.dll
(0002318B) USER32.dll.DispatchMessageW
(000203F2)QIPCAP.dll

The problem happens rarely. I cannot reproduce it.

@niakamaldominik: 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 5.19.4

Error message:
Chyba přístupu do paměti.

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
(0046EBE4) Customdriveview::TCustomDriveView::IterateSubTree
(00481142) Driveview::TDriveView::ValidateDirectoryEx
(0046E875) Customdriveview::TCustomDriveView::ValidateDirectory
(00256D9F) Vcl::Extctrls::TTimer::Timer
(003C7A98) 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:
Unzulässiger Zugriff auf einen Speicherbereich.

Stapelverfolgung:
(002B1B73) Vcl::Comctrls::TTreeNode::GetTreeView
(00087E3F) ntdll.dll
(000732D1) 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
(000434B9) USER32.dll
(00023FF7) USER32.dll
(00023149) USER32.dll
(00022F2B) USER32.dll.DispatchMessageW

The problem happens rarely. I cannot reproduce it.

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

WinSCP 5.19.5

Error message:
Invalid access to memory.

Stack trace:
(002B1C3F) Vcl::Comctrls::TTreeNode::GetTreeView
(00083FFF) ntdll.dll
(00071931) ntdll.dll.KiUserExceptionDispatcher
(0046ECB0) Customdriveview::TCustomDriveView::IterateSubTree
(0048120E) Driveview::TDriveView::ValidateDirectoryEx
(0046E941) Customdriveview::TCustomDriveView::ValidateDirectory
(00256E6B) Vcl::Extctrls::TTimer::Timer
(003C7B64) 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 5.19.5

Error message:
Invalid access to memory.

Stack trace:
(002B1C3F) Vcl::Comctrls::TTreeNode::GetTreeView
(000878AF) ntdll.dll
(00073EE1) ntdll.dll.KiUserExceptionDispatcher
(0046EC21) Customdriveview::_16446
(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
(000212B2)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 5.19.5

Error message:
Unzulässiger Zugriff auf einen Speicherbereich.

Stapelverfolgung:
(002B1C3F) Vcl::Comctrls::TTreeNode::GetTreeView
(00088F9F) ntdll.dll
(000741F1) 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
(00043719) USER32.dll
(00024257) USER32.dll
(000233A9) USER32.dll
(0002318B) USER32.dll.DispatchMessageW

The problem happens rarely. I cannot reproduce it.

We noticed different behavior of WinSCP.
- WinSCP is halting after some days of running in the background. At some time WinSCP does not respond to any input. Window becomes grey. There is no error message available.
- Sometimes an exception is triggered, see below stack trace. WinSCP still can be used after this message.
WinSCP is being used with one active SFTP connection.

WinSCP 5.19.5

Error message:
Invalid access to memory location.

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

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 5.19.5

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
(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 5.19.4

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
(0046EB55) Customdriveview::_16446
(0046EBE4) Customdriveview::TCustomDriveView::IterateSubTree
(00481142) Driveview::TDriveView::ValidateDirectoryEx
(0046E875) Customdriveview::TCustomDriveView::ValidateDirectory
(00256D9F) Vcl::Extctrls::TTimer::Timer
(003C7A98) System::Classes::_18201
(00042399) USER32.dll
(00039335) USER32.dll
(00037095) USER32.dll
(00036E5B) USER32.dll.DispatchMessageW

The problem happens rarely. I cannot reproduce it.

I just left winscp on for a long time, and this happened.

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
(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)
(000878AF) ntdll.dll
(00073EE1) ntdll.dll.KiUserExceptionDispatcher
(0046EC21)
(0046EC21)
(0046ECB0)
(0048120E)
(0046E941)
(00256E6B)
(003C7B64)
(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:
Unzulässiger Zugriff auf einen Speicherbereich.

Stapelverfolgung:
(002B1C3F) Vcl::Comctrls::TTreeNode::GetTreeView
(000975BF) ntdll.dll
(00075CA1) 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
(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:
Invalid access to memory.

Stack trace:
(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.

<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
(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.

I had left WinSCP open in the background for a few days while connected to an SSH target, and when I came back this had occurred. Sorry I don't know more.


<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
(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.

<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.