This bug has been added to the tracker:
https://winscp.net/tracker/1861

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

WinSCP 5.17.4

Error message:
Invalid access to memory.

Stack trace:
(0002127C) TCustomScpExplorerForm::DoOpenFolderOrWorkspace
(011322A6) C5310_3
(0113430E) ____ExceptionHandler
(011310C8) __ExceptionHandler
(0007E31F) ntdll.dll
(0006BEF1) ntdll.dll.KiUserExceptionDispatcher
(0002A5F2) TCustomScpExplorerForm::NeedSession
(00035452) TCustomScpExplorerForm::CMShowingChanged
(00034DEF) TCustomScpExplorerForm::Dispatch
(001D600D) Vcl::Controls::TControl::WndProc
(001DBCAB) Vcl::Controls::TWinControl::WndProc
(0024DD04) Vcl::Forms::TCustomForm::WndProc
(00FE840F) Vclcommon::C3005_0
(00FEB444) DoFormWindowProc
(00FE85C8) Vclcommon::C3005_0
(001D5B0E) Vcl::Controls::TControl::Perform
(001DAF54) Vcl::Controls::TWinControl::UpdateShowing
(001DB07A) Vcl::Controls::TWinControl::UpdateControlState
(001DE705) Vcl::Controls::TWinControl::CMVisibleChanged
(00034E3D) TCustomScpExplorerForm::Dispatch
(001D600D) Vcl::Controls::TControl::WndProc
(001DBCAB) Vcl::Controls::TWinControl::WndProc
(0024DD04) Vcl::Forms::TCustomForm::WndProc
(00FEB6A4) DoFormWindowProc
(00FE85C8) Vclcommon::C3005_0
(001D5B0E) Vcl::Controls::TControl::Perform
(001D3C44) Vcl::Controls::TControl::SetVisible
(0024D441) Vcl::Forms::TCustomForm::SetVisible
(00259B21) Vcl::Forms::TApplication::Run
(0012A110) Execute
(0000315D) wWinMain
(011302B9) C5178_0
(00063326) ntdll.dll.RtlAreBitsSet
(000632F3) ntdll.dll.RtlAreBitsSet

(0002127C) TCustomScpExplorerForm::DoOpenFolderOrWorkspace
(0007E31F) ntdll.dll
(0006BEF1) ntdll.dll.KiUserExceptionDispatcher
(0002A5F2) TCustomScpExplorerForm::NeedSession
(00035452) TCustomScpExplorerForm::CMShowingChanged
(00034DEF) TCustomScpExplorerForm::Dispatch
(001D600D) Vcl::Controls::TControl::WndProc
(001DBCAB) Vcl::Controls::TWinControl::WndProc
(0024DD04) Vcl::Forms::TCustomForm::WndProc
(00FE840F) Vclcommon::C3005_0
(00FEB444) DoFormWindowProc
(00FE85C8) Vclcommon::C3005_0
(001D5B0E) Vcl::Controls::TControl::Perform
(001DAF54) Vcl::Controls::TWinControl::UpdateShowing
(001DB07A) Vcl::Controls::TWinControl::UpdateControlState
(001DE705) Vcl::Controls::TWinControl::CMVisibleChanged
(00034E3D) TCustomScpExplorerForm::Dispatch
(001D600D) Vcl::Controls::TControl::WndProc
(001DBCAB) Vcl::Controls::TWinControl::WndProc
(0024DD04) Vcl::Forms::TCustomForm::WndProc
(00FEB6A4) DoFormWindowProc
(00FE85C8) Vclcommon::C3005_0
(001D5B0E) Vcl::Controls::TControl::Perform
(001D3C44) Vcl::Controls::TControl::SetVisible
(0024D441) Vcl::Forms::TCustomForm::SetVisible
(00259B21) Vcl::Forms::TApplication::Run
(0012A110) Execute
(0000315D) wWinMain
(011302B9) C5178_0
(00063326) ntdll.dll.RtlAreBitsSet
(000632F3) ntdll.dll.RtlAreBitsSet

(0002127C) TCustomScpExplorerForm::DoOpenFolderOrWorkspace
(011322A6) C5310_3
(0113430E) ____ExceptionHandler
(011310C8) __ExceptionHandler
(0007E31F) ntdll.dll
(0006BEF1) ntdll.dll.KiUserExceptionDispatcher
(0002A5F2) TCustomScpExplorerForm::NeedSession
(00035452) TCustomScpExplorerForm::CMShowingChanged
(00034DEF) TCustomScpExplorerForm::Dispatch
(001D600D) Vcl::Controls::TControl::WndProc
(001DBCAB) Vcl::Controls::TWinControl::WndProc
(0024DD04) Vcl::Forms::TCustomForm::WndProc
(00FE840F) Vclcommon::C3005_0
(00FEB444) DoFormWindowProc
(00FE85C8) Vclcommon::C3005_0
(001D5B0E) Vcl::Controls::TControl::Perform
(001DAF54) Vcl::Controls::TWinControl::UpdateShowing
(001DB07A) Vcl::Controls::TWinControl::UpdateControlState
(001DE705) Vcl::Controls::TWinControl::CMVisibleChanged
(00034E3D) TCustomScpExplorerForm::Dispatch
(001D600D) Vcl::Controls::TControl::WndProc
(001DBCAB) Vcl::Controls::TWinControl::WndProc
(0024DD04) Vcl::Forms::TCustomForm::WndProc
(00FEB6A4) DoFormWindowProc
(00FE85C8) Vclcommon::C3005_0
(001D5B0E) Vcl::Controls::TControl::Perform
(001D3C44) Vcl::Controls::TControl::SetVisible
(0024D441) Vcl::Forms::TCustomForm::SetVisible
(00259B21) Vcl::Forms::TApplication::Run
(0012A110) Execute
(0000315D) wWinMain
(011302B9) C5178_0
(00063326) ntdll.dll.RtlAreBitsSet
(000632F3) ntdll.dll.RtlAreBitsSet

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

Thanks for your 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 5.17.3

Error message:
Invalid access to memory.

Stack trace:
(00019740) TCustomScpExplorerForm::DoOpenFolderOrWorkspace
(00F876DE) C5296_0
(00F89746) ____ExceptionHandler
(00F86500) __ExceptionHandler
(00087D7F) ntdll.dll
(00073221) ntdll.dll.KiUserExceptionDispatcher
(000208C8) TCustomScpExplorerForm::NeedSession
(00028218) TCustomScpExplorerForm::CMShowingChanged
(0002804E) TCustomScpExplorerForm::Dispatch
(00279B7D) Vcl::Controls::TWinControl::WndProc
(00234044) Vcl::Forms::TCustomForm::WndProc
(00E40E30) Vclcommon::C2992_0

(00019740) TCustomScpExplorerForm::DoOpenFolderOrWorkspace
(00087D7F) ntdll.dll
(00073221) ntdll.dll.KiUserExceptionDispatcher
(000208C8) TCustomScpExplorerForm::NeedSession
(00028218) TCustomScpExplorerForm::CMShowingChanged
(0002804E) TCustomScpExplorerForm::Dispatch
(00279B7D) Vcl::Controls::TWinControl::WndProc
(00234044) Vcl::Forms::TCustomForm::WndProc
(00E40E30) Vclcommon::C2992_0

(00019740) TCustomScpExplorerForm::DoOpenFolderOrWorkspace
(00F876DE) C5296_0
(00F89746) ____ExceptionHandler
(00F86500) __ExceptionHandler
(00087D7F) ntdll.dll
(00073221) ntdll.dll.KiUserExceptionDispatcher
(000208C8) TCustomScpExplorerForm::NeedSession
(00028218) TCustomScpExplorerForm::CMShowingChanged
(0002804E) TCustomScpExplorerForm::Dispatch
(00279B7D) Vcl::Controls::TWinControl::WndProc
(00234044) Vcl::Forms::TCustomForm::WndProc
(00E40E30) Vclcommon::C2992_0

The problem happens rarely. I cannot reproduce it.

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

WinSCP 5.17.3

Error message:
Érvénytelen memóriaelérés

Veremkivonat:
(00019740) TCustomScpExplorerForm::DoOpenFolderOrWorkspace
(00F876DE) C5296_0
(00F89746) ____ExceptionHandler
(00F86500) __ExceptionHandler
(0007E31F) ntdll.dll
(0006BEF1) ntdll.dll.KiUserExceptionDispatcher
(000208C8) TCustomScpExplorerForm::NeedSession
(00028218) TCustomScpExplorerForm::CMShowingChanged
(0002804E) TCustomScpExplorerForm::Dispatch
(00279B7D) Vcl::Controls::TWinControl::WndProc
(00234044) Vcl::Forms::TCustomForm::WndProc
(00E40E30) Vclcommon::C2992_0

(00019740) TCustomScpExplorerForm::DoOpenFolderOrWorkspace
(0007E31F) ntdll.dll
(0006BEF1) ntdll.dll.KiUserExceptionDispatcher
(000208C8) TCustomScpExplorerForm::NeedSession
(00028218) TCustomScpExplorerForm::CMShowingChanged
(0002804E) TCustomScpExplorerForm::Dispatch
(00279B7D) Vcl::Controls::TWinControl::WndProc
(00234044) Vcl::Forms::TCustomForm::WndProc
(00E40E30) Vclcommon::C2992_0

(00019740) TCustomScpExplorerForm::DoOpenFolderOrWorkspace
(00F876DE) C5296_0
(00F89746) ____ExceptionHandler
(00F86500) __ExceptionHandler
(0007E31F) ntdll.dll
(0006BEF1) ntdll.dll.KiUserExceptionDispatcher
(000208C8) TCustomScpExplorerForm::NeedSession
(00028218) TCustomScpExplorerForm::CMShowingChanged
(0002804E) TCustomScpExplorerForm::Dispatch
(00279B7D) Vcl::Controls::TWinControl::WndProc
(00234044) Vcl::Forms::TCustomForm::WndProc
(00E40E30) Vclcommon::C2992_0

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

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

WinSCP 5.17.3

Error message:
无效的内存访问。

Stack trace:
(00019740) TCustomScpExplorerForm::DoOpenFolderOrWorkspace
(00F876DE) C5296_0
(00F89746) ____ExceptionHandler
(00F86500) __ExceptionHandler
(00087D7F) ntdll.dll
(00073221) ntdll.dll.KiUserExceptionDispatcher
(000208C8) TCustomScpExplorerForm::NeedSession
(00028218) TCustomScpExplorerForm::CMShowingChanged
(0002804E) TCustomScpExplorerForm::Dispatch
(00279B7D) Vcl::Controls::TWinControl::WndProc
(00234044) Vcl::Forms::TCustomForm::WndProc
(00E40E30) Vclcommon::C2992_0

(00019740) TCustomScpExplorerForm::DoOpenFolderOrWorkspace
(00087D7F) ntdll.dll
(00073221) ntdll.dll.KiUserExceptionDispatcher
(000208C8) TCustomScpExplorerForm::NeedSession
(00028218) TCustomScpExplorerForm::CMShowingChanged
(0002804E) TCustomScpExplorerForm::Dispatch
(00279B7D) Vcl::Controls::TWinControl::WndProc
(00234044) Vcl::Forms::TCustomForm::WndProc
(00E40E30) Vclcommon::C2992_0

(00019740) TCustomScpExplorerForm::DoOpenFolderOrWorkspace
(00F876DE) C5296_0
(00F89746) ____ExceptionHandler
(00F86500) __ExceptionHandler
(00087D7F) ntdll.dll
(00073221) ntdll.dll.KiUserExceptionDispatcher
(000208C8) TCustomScpExplorerForm::NeedSession
(00028218) TCustomScpExplorerForm::CMShowingChanged
(0002804E) TCustomScpExplorerForm::Dispatch
(00279B7D) Vcl::Controls::TWinControl::WndProc
(00234044) Vcl::Forms::TCustomForm::WndProc
(00E40E30) Vclcommon::C2992_0

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)>
I was trying to open a large log file (around 40 MB) then Winscp crashed. After that it always crashes upon starting Winscp and it always says Invalid access to memory.

WinSCP 5.17.2

Error message:
Invalid access to memory.

Stack trace:
(00019740) TCustomScpExplorerForm::DoOpenFolderOrWorkspace
(00F85292) C5296_3
(00F872FA) ____ExceptionHandler
(00F840B4) __ExceptionHandler
(00087E3F) ntdll.dll
(000732C1) ntdll.dll.KiUserExceptionDispatcher
(000208C8) TCustomScpExplorerForm::NeedSession
(00028238) TCustomScpExplorerForm::CMShowingChanged
(0002806E) TCustomScpExplorerForm::Dispatch
(00279915) Vcl::Controls::TWinControl::WndProc
(00233DDC) Vcl::Forms::TCustomForm::WndProc
(00E3EEF0) Vclcommon::C2992_0

(00019740) TCustomScpExplorerForm::DoOpenFolderOrWorkspace
(00087E3F) ntdll.dll
(000732C1) ntdll.dll.KiUserExceptionDispatcher
(000208C8) TCustomScpExplorerForm::NeedSession
(00028238) TCustomScpExplorerForm::CMShowingChanged
(0002806E) TCustomScpExplorerForm::Dispatch
(00279915) Vcl::Controls::TWinControl::WndProc
(00233DDC) Vcl::Forms::TCustomForm::WndProc
(00E3EEF0) Vclcommon::C2992_0

(00019740) TCustomScpExplorerForm::DoOpenFolderOrWorkspace
(00F85292) C5296_3
(00F872FA) ____ExceptionHandler
(00F840B4) __ExceptionHandler
(00087E3F) ntdll.dll
(000732C1) ntdll.dll.KiUserExceptionDispatcher
(000208C8) TCustomScpExplorerForm::NeedSession
(00028238) TCustomScpExplorerForm::CMShowingChanged
(0002806E) TCustomScpExplorerForm::Dispatch
(00279915) Vcl::Controls::TWinControl::WndProc
(00233DDC) Vcl::Forms::TCustomForm::WndProc
(00E3EEF0) Vclcommon::C2992_0

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

Thanks for your 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 5.17.3

Error message:
Invalid access to memory.

Stack trace:
(00019740) TCustomScpExplorerForm::DoOpenFolderOrWorkspace
(00F876DE) C5296_0
(00F89746) ____ExceptionHandler
(00F86500) __ExceptionHandler
(00087E3F) ntdll.dll
(000732C1) ntdll.dll.KiUserExceptionDispatcher
(000208C8) TCustomScpExplorerForm::NeedSession
(00028218) TCustomScpExplorerForm::CMShowingChanged
(0002804E) TCustomScpExplorerForm::Dispatch
(00279B7D) Vcl::Controls::TWinControl::WndProc
(00234044) Vcl::Forms::TCustomForm::WndProc
(00E40E30) Vclcommon::C2992_0

(00019740) TCustomScpExplorerForm::DoOpenFolderOrWorkspace
(00087E3F) ntdll.dll
(000732C1) ntdll.dll.KiUserExceptionDispatcher
(000208C8) TCustomScpExplorerForm::NeedSession
(00028218) TCustomScpExplorerForm::CMShowingChanged
(0002804E) TCustomScpExplorerForm::Dispatch
(00279B7D) Vcl::Controls::TWinControl::WndProc
(00234044) Vcl::Forms::TCustomForm::WndProc
(00E40E30) Vclcommon::C2992_0

(00019740) TCustomScpExplorerForm::DoOpenFolderOrWorkspace
(00F876DE) C5296_0
(00F89746) ____ExceptionHandler
(00F86500) __ExceptionHandler
(00087E3F) ntdll.dll
(000732C1) ntdll.dll.KiUserExceptionDispatcher
(000208C8) TCustomScpExplorerForm::NeedSession
(00028218) TCustomScpExplorerForm::CMShowingChanged
(0002804E) TCustomScpExplorerForm::Dispatch
(00279B7D) Vcl::Controls::TWinControl::WndProc
(00234044) Vcl::Forms::TCustomForm::WndProc
(00E40E30) Vclcommon::C2992_0

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

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

WinSCP 5.17.3

Error message:
Ongeldige toegang tot geheugen.

Stack trace:
(00019740) TCustomScpExplorerForm::DoOpenFolderOrWorkspace
(00F876DE) C5296_0
(00F89746) ____ExceptionHandler
(00F86500) __ExceptionHandler
(00087E3F) ntdll.dll
(000732C1) ntdll.dll.KiUserExceptionDispatcher
(000208C8) TCustomScpExplorerForm::NeedSession
(00028218) TCustomScpExplorerForm::CMShowingChanged
(0002804E) TCustomScpExplorerForm::Dispatch
(00279B7D) Vcl::Controls::TWinControl::WndProc
(00234044) Vcl::Forms::TCustomForm::WndProc
(00E40E30) Vclcommon::C2992_0

(00019740) TCustomScpExplorerForm::DoOpenFolderOrWorkspace
(00087E3F) ntdll.dll
(000732C1) ntdll.dll.KiUserExceptionDispatcher
(000208C8) TCustomScpExplorerForm::NeedSession
(00028218) TCustomScpExplorerForm::CMShowingChanged
(0002804E) TCustomScpExplorerForm::Dispatch
(00279B7D) Vcl::Controls::TWinControl::WndProc
(00234044) Vcl::Forms::TCustomForm::WndProc
(00E40E30) Vclcommon::C2992_0

(00019740) TCustomScpExplorerForm::DoOpenFolderOrWorkspace
(00F876DE) C5296_0
(00F89746) ____ExceptionHandler
(00F86500) __ExceptionHandler
(00087E3F) ntdll.dll
(000732C1) ntdll.dll.KiUserExceptionDispatcher
(000208C8) TCustomScpExplorerForm::NeedSession
(00028218) TCustomScpExplorerForm::CMShowingChanged
(0002804E) TCustomScpExplorerForm::Dispatch
(00279B7D) Vcl::Controls::TWinControl::WndProc
(00234044) Vcl::Forms::TCustomForm::WndProc
(00E40E30) Vclcommon::C2992_0

The problem happens rarely. I cannot reproduce it.

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

WinSCP 5.17.3

Error message:
Acesso inválido à memória

Rastreamento de pilha:
(00019740) TCustomScpExplorerForm::DoOpenFolderOrWorkspace
(00F876DE) C5296_0
(00F89746) ____ExceptionHandler
(00F86500) __ExceptionHandler
(0007C61F) ntdll.dll
(00069E6A) ntdll.dll.KiUserExceptionDispatcher
(000208C8) TCustomScpExplorerForm::NeedSession
(00028218) TCustomScpExplorerForm::CMShowingChanged
(0002804E) TCustomScpExplorerForm::Dispatch
(00279B7D) Vcl::Controls::TWinControl::WndProc
(00234044) Vcl::Forms::TCustomForm::WndProc
(00E40E30) Vclcommon::C2992_0

(00019740) TCustomScpExplorerForm::DoOpenFolderOrWorkspace
(0007C61F) ntdll.dll
(00069E6A) ntdll.dll.KiUserExceptionDispatcher
(000208C8) TCustomScpExplorerForm::NeedSession
(00028218) TCustomScpExplorerForm::CMShowingChanged
(0002804E) TCustomScpExplorerForm::Dispatch
(00279B7D) Vcl::Controls::TWinControl::WndProc
(00234044) Vcl::Forms::TCustomForm::WndProc
(00E40E30) Vclcommon::C2992_0

(00019740) TCustomScpExplorerForm::DoOpenFolderOrWorkspace
(00F876DE) C5296_0
(00F89746) ____ExceptionHandler
(00F86500) __ExceptionHandler
(0007C61F) ntdll.dll
(00069E6A) ntdll.dll.KiUserExceptionDispatcher
(000208C8) TCustomScpExplorerForm::NeedSession
(00028218) TCustomScpExplorerForm::CMShowingChanged
(0002804E) TCustomScpExplorerForm::Dispatch
(00279B7D) Vcl::Controls::TWinControl::WndProc
(00234044) Vcl::Forms::TCustomForm::WndProc
(00E40E30) Vclcommon::C2992_0

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 5.17.4

Error message:
Invalid access to memory.

Stack trace:
(0002127C) TCustomScpExplorerForm::DoOpenFolderOrWorkspace
(01132196) C5310_0
(011341FE) ____ExceptionHandler
(01130FB8) __ExceptionHandler
(0007E19F) ntdll.dll
(0006BD91) ntdll.dll.KiUserExceptionDispatcher
(0002A5F2) TCustomScpExplorerForm::NeedSession
(00035452) TCustomScpExplorerForm::CMShowingChanged
(00034DEF) TCustomScpExplorerForm::Dispatch
(001D5FD1) Vcl::Controls::TControl::WndProc
(001DBC6F) Vcl::Controls::TWinControl::WndProc
(0024DCC8) Vcl::Forms::TCustomForm::WndProc
(00FE82FF) Vclcommon::C3005_0
(00FEB334) DoFormWindowProc
(00FE84B8) Vclcommon::C3005_0
(001D5AD2) Vcl::Controls::TControl::Perform
(001DAF18) Vcl::Controls::TWinControl::UpdateShowing
(001DB03E) Vcl::Controls::TWinControl::UpdateControlState
(001DE6C9) Vcl::Controls::TWinControl::CMVisibleChanged
(00034E3D) TCustomScpExplorerForm::Dispatch
(001D5FD1) Vcl::Controls::TControl::WndProc
(001DBC6F) Vcl::Controls::TWinControl::WndProc
(0024DCC8) Vcl::Forms::TCustomForm::WndProc
(00FEB594) DoFormWindowProc
(00FE84B8) Vclcommon::C3005_0
(001D5AD2) Vcl::Controls::TControl::Perform
(001D3C08) Vcl::Controls::TControl::SetVisible
(0024D405) Vcl::Forms::TCustomForm::SetVisible
(00259AE5) Vcl::Forms::TApplication::Run
(0012A0D4) Execute
(0000315D) wWinMain
(011301A9) C5178_0
(000631C6) ntdll.dll.RtlAreBitsSet
(00063193) ntdll.dll.RtlAreBitsSet

(0002127C) TCustomScpExp

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

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

WinSCP 5.17.3

Error message:
Invalid access to memory.

Stack trace:
(00019740) TCustomScpExplorerForm::DoOpenFolderOrWorkspace
(00F876DE) C5296_0
(00F89746) ____ExceptionHandler
(00F86500) __ExceptionHandler
(000623AA) ntdll.dll
(0000F12E) ntdll.dll.KiUserExceptionDispatcher
(000208C8) TCustomScpExplorerForm::NeedSession
(00028218) TCustomScpExplorerForm::CMShowingChanged
(0002804E) TCustomScpExplorerForm::Dispatch
(00279B7D) Vcl::Controls::TWinControl::WndProc
(00234044) Vcl::Forms::TCustomForm::WndProc
(00E40E30) Vclcommon::C2992_0

(00019740) TCustomScpExplorerForm::DoOpenFolderOrWorkspace
(000623AA) ntdll.dll
(0000F12E) ntdll.dll.KiUserExceptionDispatcher
(000208C8) TCustomScpExplorerForm::NeedSession
(00028218) TCustomScpExplorerForm::CMShowingChanged
(0002804E) TCustomScpExplorerForm::Dispatch
(00279B7D) Vcl::Controls::TWinControl::WndProc
(00234044) Vcl::Forms::TCustomForm::WndProc
(00E40E30) Vclcommon::C2992_0

(00019740) TCustomScpExplorerForm::DoOpenFolderOrWorkspace
(00F876DE) C5296_0
(00F89746) ____ExceptionHandler
(00F86500) __ExceptionHandler
(000623AA) ntdll.dll
(0000F12E) ntdll.dll.KiUserExceptionDispatcher
(000208C8) TCustomScpExplorerForm::NeedSession
(00028218) TCustomScpExplorerForm::CMShowingChanged
(0002804E) TCustomScpExplorerForm::Dispatch
(00279B7D) Vcl::Controls::TWinControl::WndProc
(00234044) Vcl::Forms::TCustomForm::WndProc
(00E40E30) Vclcommon::C2992_0

The problem happens rarely. I cannot reproduce it.

jeffery.dokos@... wrote:

WinSCP 5.17.3

Error message:
Invalid access to memory.

Stack trace:
(00019740) TCustomScpExplorerForm::DoOpenFolderOrWorkspace
(00F876DE) C5296_0
(00F89746) ____ExceptionHandler
(00F86500) __ExceptionHandler
(0007E19F) ntdll.dll
(0006BD91) ntdll.dll.KiUserExceptionDispatcher
(000208C8) TCustomScpExplorerForm::NeedSession
(00028218) TCustomScpExplorerForm::CMShowingChanged
(0002804E) TCustomScpExplorerForm::Dispatch
(00279B7D) Vcl::Controls::TWinControl::WndProc
...

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

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

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

WinSCP 5.17.2

Error message:
Invalid access to memory.

Stack trace:
(00019740) TCustomScpExplorerForm::DoOpenFolderOrWorkspace
(00F85292) C5296_3
(00F872FA) ____ExceptionHandler
(00F840B4) __ExceptionHandler
(00087D7F) ntdll.dll
(00073221) ntdll.dll.KiUserExceptionDispatcher
(000208C8) TCustomScpExplorerForm::NeedSession
(00028238) TCustomScpExplorerForm::CMShowingChanged
(0002806E) TCustomScpExplorerForm::Dispatch
(00279915) Vcl::Controls::TWinControl::WndProc
(00233DDC) Vcl::Forms::TCustomForm::WndProc
(00E3EEF0) Vclcommon::C2992_0

(00019740) TCustomScpExplorerForm::DoOpenFolderOrWorkspace
(00087D7F) ntdll.dll
(00073221) ntdll.dll.KiUserExceptionDispatcher
(000208C8) TCustomScpExplorerForm::NeedSession
(00028238) TCustomScpExplorerForm::CMShowingChanged
(0002806E) TCustomScpExplorerForm::Dispatch
(00279915) Vcl::Controls::TWinControl::WndProc
(00233DDC) Vcl::Forms::TCustomForm::WndProc
(00E3EEF0) Vclcommon::C2992_0

(00019740) TCustomScpExplorerForm::DoOpenFolderOrWorkspace
(00F85292) C5296_3
(00F872FA) ____ExceptionHandler
(00F840B4) __ExceptionHandler
(00087D7F) ntdll.dll
(00073221) ntdll.dll.KiUserExceptionDispatcher
(000208C8) TCustomScpExplorerForm::NeedSession
(00028238) TCustomScpExplorerForm::CMShowingChanged
(0002806E) TCustomScpExplorerForm::Dispatch
(00279915) Vcl::Controls::TWinControl::WndProc
(00233DDC) Vcl::Forms::TCustomForm::WndProc
(00E3EEF0) Vclcommon::C2992_0

The problem happens rarely. I cannot reproduce it.

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

WinSCP 5.17.3

Error message:
Invalid access to memory.

Stack trace:
(00019740) TCustomScpExplorerForm::DoOpenFolderOrWorkspace
(00F876DE) C5296_0
(00F89746) ____ExceptionHandler
(00F86500) __ExceptionHandler
(0007E19F) ntdll.dll
(0006BD91) ntdll.dll.KiUserExceptionDispatcher
(000208C8) TCustomScpExplorerForm::NeedSession
(00028218) TCustomScpExplorerForm::CMShowingChanged
(0002804E) TCustomScpExplorerForm::Dispatch
(00279B7D) Vcl::Controls::TWinControl::WndProc
(00234044) Vcl::Forms::TCustomForm::WndProc
(00E40E30) Vclcommon::C2992_0

(00019740) TCustomScpExplorerForm::DoOpenFolderOrWorkspace
(0007E19F) ntdll.dll
(0006BD91) ntdll.dll.KiUserExceptionDispatcher
(000208C8) TCustomScpExplorerForm::NeedSession
(00028218) TCustomScpExplorerForm::CMShowingChanged
(0002804E) TCustomScpExplorerForm::Dispatch
(00279B7D) Vcl::Controls::TWinControl::WndProc
(00234044) Vcl::Forms::TCustomForm::WndProc
(00E40E30) Vclcommon::C2992_0

(00019740) TCustomScpExplorerForm::DoOpenFolderOrWorkspace
(00F876DE) C5296_0
(00F89746) ____ExceptionHandler
(00F86500) __ExceptionHandler
(0007E19F) ntdll.dll
(0006BD91) ntdll.dll.KiUserExceptionDispatcher
(000208C8) TCustomScpExplorerForm::NeedSession
(00028218) TCustomScpExplorerForm::CMShowingChanged
(0002804E) TCustomScpExplorerForm::Dispatch
(00279B7D) Vcl::Controls::TWinControl::WndProc
(00234044) Vcl::Forms::TCustomForm::WndProc
(00E40E30) Vclcommon::C2992_0

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

Thanks for your 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 5.17.3

Error message:
Invalid access to memory.

Stack trace:
(00019740) TCustomScpExplorerForm::DoOpenFolderOrWorkspace
(00F876DE) C5296_0
(00F89746) ____ExceptionHandler
(00F86500) __ExceptionHandler
(0008403F) ntdll.dll
(00071941) ntdll.dll.KiUserExceptionDispatcher
(000208C8) TCustomScpExplorerForm::NeedSession
(00028218) TCustomScpExplorerForm::CMShowingChanged
(0002804E) TCustomScpExplorerForm::Dispatch
(00279B7D) Vcl::Controls::TWinControl::WndProc
(00234044) Vcl::Forms::TCustomForm::WndProc
(00E40E30) Vclcommon::C2992_0

(00019740) TCustomScpExplorerForm::DoOpenFolderOrWorkspace
(0008403F) ntdll.dll
(00071941) ntdll.dll.KiUserExceptionDispatcher
(000208C8) TCustomScpExplorerForm::NeedSession
(00028218) TCustomScpExplorerForm::CMShowingChanged
(0002804E) TCustomScpExplorerForm::Dispatch
(00279B7D) Vcl::Controls::TWinControl::WndProc
(00234044) Vcl::Forms::TCustomForm::WndProc
(00E40E30) Vclcommon::C2992_0

(00019740) TCustomScpExplorerForm::DoOpenFolderOrWorkspace
(00F876DE) C5296_0
(00F89746) ____ExceptionHandler
(00F86500) __ExceptionHandler
(0008403F) ntdll.dll
(00071941) ntdll.dll.KiUserExceptionDispatcher
(000208C8) TCustomScpExplorerForm::NeedSession
(00028218) TCustomScpExplorerForm::CMShowingChanged
(0002804E) TCustomScpExplorerForm::Dispatch
(00279B7D) Vcl::Controls::TWinControl::WndProc
(00234044) Vcl::Forms::TCustomForm::WndProc
(00E40E30) Vclcommon::C2992_0

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

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

WinSCP 5.17.3

Error message:
无效的内存访问。

Stack trace:
(00019740) TCustomScpExplorerForm::DoOpenFolderOrWorkspace
(00F876DE) C5296_0
(00F89746) ____ExceptionHandler
(00F86500) __ExceptionHandler
(00087D7F) ntdll.dll
(00073221) ntdll.dll.KiUserExceptionDispatcher
(000208C8) TCustomScpExplorerForm::NeedSession
(00028218) TCustomScpExplorerForm::CMShowingChanged
(0002804E) TCustomScpExplorerForm::Dispatch
(00279B7D) Vcl::Controls::TWinControl::WndProc
(00234044) Vcl::Forms::TCustomForm::WndProc
(00E40E30) Vclcommon::C2992_0

(00019740) TCustomScpExplorerForm::DoOpenFolderOrWorkspace
(00087D7F) ntdll.dll
(00073221) ntdll.dll.KiUserExceptionDispatcher
(000208C8) TCustomScpExplorerForm::NeedSession
(00028218) TCustomScpExplorerForm::CMShowingChanged
(0002804E) TCustomScpExplorerForm::Dispatch
(00279B7D) Vcl::Controls::TWinControl::WndProc
(00234044) Vcl::Forms::TCustomForm::WndProc
(00E40E30) Vclcommon::C2992_0

(00019740) TCustomScpExplorerForm::DoOpenFolderOrWorkspace
(00F876DE) C5296_0
(00F89746) ____ExceptionHandler
(00F86500) __ExceptionHandler
(00087D7F) ntdll.dll
(00073221) ntdll.dll.KiUserExceptionDispatcher
(000208C8) TCustomScpExplorerForm::NeedSession
(00028218) TCustomScpExplorerForm::CMShowingChanged
(0002804E) TCustomScpExplorerForm::Dispatch
(00279B7D) Vcl::Controls::TWinControl::WndProc
(00234044) Vcl::Forms::TCustomForm::WndProc
(00E40E30) Vclcommon::C2992_0

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

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

WinSCP 5.17.3

Error message:
Invalid access to memory.

Stack trace:
(00019740) TCustomScpExplorerForm::DoOpenFolderOrWorkspace
(00F876DE) C5296_0
(00F89746) ____ExceptionHandler
(00F86500) __ExceptionHandler
(0008403F) ntdll.dll
(00071941) ntdll.dll.KiUserExceptionDispatcher
(000208C8) TCustomScpExplorerForm::NeedSession
(00028218) TCustomScpExplorerForm::CMShowingChanged
(0002804E) TCustomScpExplorerForm::Dispatch
(00279B7D) Vcl::Controls::TWinControl::WndProc
(00234044) Vcl::Forms::TCustomForm::WndProc
(00E40E30) Vclcommon::C2992_0

(00019740) TCustomScpExplorerForm::DoOpenFolderOrWorkspace
(0008403F) ntdll.dll
(00071941) ntdll.dll.KiUserExceptionDispatcher
(000208C8) TCustomScpExplorerForm::NeedSession
(00028218) TCustomScpExplorerForm::CMShowingChanged
(0002804E) TCustomScpExplorerForm::Dispatch
(00279B7D) Vcl::Controls::TWinControl::WndProc
(00234044) Vcl::Forms::TCustomForm::WndProc
(00E40E30) Vclcommon::C2992_0

(00019740) TCustomScpExplorerForm::DoOpenFolderOrWorkspace
(00F876DE) C5296_0
(00F89746) ____ExceptionHandler
(00F86500) __ExceptionHandler
(0008403F) ntdll.dll
(00071941) ntdll.dll.KiUserExceptionDispatcher
(000208C8) TCustomScpExplorerForm::NeedSession
(00028218) TCustomScpExplorerForm::CMShowingChanged
(0002804E) TCustomScpExplorerForm::Dispatch
(00279B7D) Vcl::Controls::TWinControl::WndProc
(00234044) Vcl::Forms::TCustomForm::WndProc
(00E40E30) Vclcommon::C2992_0

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.

ncheng@... wrote:

WinSCP 5.17.2

Error message:
Invalid access to memory.

Stack trace:
(00019740) TCustomScpExplorerForm::DoOpenFolderOrWorkspace
(00F85292) C5296_3
(00F872FA) ____ExceptionHandler
(00F840B4) __ExceptionHandler
(0007E19F) ntdll.dll
(0006BD91) ntdll.dll.KiUserExceptionDispatcher
(000208C8) TCustomScpExplorerForm::NeedSession
(00028238) TCustomScpExplorerForm::CMShowingChanged
(0002806E) TCustomScpExplorerForm::Dispatch
(00279915) Vcl::Controls::TWinControl::WndProc
...

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

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

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

WinSCP 5.17.1

Error message:
메모리 접근이 잘못 되었습니다.

스택 추적:
(00019740) TCustomScpExplorerForm::DoOpenFolderOrWorkspace
(00F84E6A) C5296_3
(00F86ED2) ____ExceptionHandler
(00F83C8C) __ExceptionHandler
(00087D7F) ntdll.dll
(00073221) ntdll.dll.KiUserExceptionDispatcher
(000208C8) TCustomScpExplorerForm::NeedSession
(00028238) TCustomScpExplorerForm::CMShowingChanged
(0002806E) TCustomScpExplorerForm::Dispatch
(00279915) Vcl::Controls::TWinControl::WndProc
(00233DDC) Vcl::Forms::TCustomForm::WndProc
(00E3EAC8) Vclcommon::C2992_0

(00019740) TCustomScpExplorerForm::DoOpenFolderOrWorkspace
(00087D7F) ntdll.dll
(00073221) ntdll.dll.KiUserExceptionDispatcher
(000208C8) TCustomScpExplorerForm::NeedSession
(00028238) TCustomScpExplorerForm::CMShowingChanged
(0002806E) TCustomScpExplorerForm::Dispatch
(00279915) Vcl::Controls::TWinControl::WndProc
(00233DDC) Vcl::Forms::TCustomForm::WndProc
(00E3EAC8) Vclcommon::C2992_0

(00019740) TCustomScpExplorerForm::DoOpenFolderOrWorkspace
(00F84E6A) C5296_3
(00F86ED2) ____ExceptionHandler
(00F83C8C) __ExceptionHandler
(00087D7F) ntdll.dll
(00073221) ntdll.dll.KiUserExceptionDispatcher
(000208C8) TCustomScpExplorerForm::NeedSession
(00028238) TCustomScpExplorerForm::CMShowingChanged
(0002806E) TCustomScpExplorerForm::Dispatch
(00279915) Vcl::Controls::TWinControl::WndProc
(00233DDC) Vcl::Forms::TCustomForm::WndProc
(00E3EAC8) Vclcommon::C2992_0

The problem happens rarely. I cannot reproduce it.

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

WinSCP 5.17.2

Error message:
Acceso a memoria no válido

Traza de la pila:
(00019740) TCustomScpExplorerForm::DoOpenFolderOrWorkspace
(00F85292) C5296_3
(00F872FA) ____ExceptionHandler
(00F840B4) __ExceptionHandler
(00087D7F) ntdll.dll
(00073221) ntdll.dll.KiUserExceptionDispatcher
(000208C8) TCustomScpExplorerForm::NeedSession
(00028238) TCustomScpExplorerForm::CMShowingChanged
(0002806E) TCustomScpExplorerForm::Dispatch
(00279915) Vcl::Controls::TWinControl::WndProc
(00233DDC) Vcl::Forms::TCustomForm::WndProc
(00E3EEF0) Vclcommon::C2992_0

(00019740) TCustomScpExplorerForm::DoOpenFolderOrWorkspace
(00087D7F) ntdll.dll
(00073221) ntdll.dll.KiUserExceptionDispatcher
(000208C8) TCustomScpExplorerForm::NeedSession
(00028238) TCustomScpExplorerForm::CMShowingChanged
(0002806E) TCustomScpExplorerForm::Dispatch
(00279915) Vcl::Controls::TWinControl::WndProc
(00233DDC) Vcl::Forms::TCustomForm::WndProc
(00E3EEF0) Vclcommon::C2992_0

(00019740) TCustomScpExplorerForm::DoOpenFolderOrWorkspace
(00F85292) C5296_3
(00F872FA) ____ExceptionHandler
(00F840B4) __ExceptionHandler
(00087D7F) ntdll.dll
(00073221) ntdll.dll.KiUserExceptionDispatcher
(000208C8) TCustomScpExplorerForm::NeedSession
(00028238) TCustomScpExplorerForm::CMShowingChanged
(0002806E) TCustomScpExplorerForm::Dispatch
(00279915) Vcl::Controls::TWinControl::WndProc
(00233DDC) Vcl::Forms::TCustomForm::WndProc
(00E3EEF0) Vclcommon::C2992_0

The problem happens rarely. I cannot reproduce it.

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

WinSCP 5.17.2

Error message:
Invalid access to memory.

Stack trace:
(00019740) TCustomScpExplorerForm::DoOpenFolderOrWorkspace
(00F85292) C5296_3
(00F872FA) ____ExceptionHandler
(00F840B4) __ExceptionHandler
(0007E19F) ntdll.dll
(0006BD91) ntdll.dll.KiUserExceptionDispatcher
(000208C8) TCustomScpExplorerForm::NeedSession
(00028238) TCustomScpExplorerForm::CMShowingChanged
(0002806E) TCustomScpExplorerForm::Dispatch
(00279915) Vcl::Controls::TWinControl::WndProc
(00233DDC) Vcl::Forms::TCustomForm::WndProc
(00E3EEF0) Vclcommon::C2992_0

(00019740) TCustomScpExplorerForm::DoOpenFolderOrWorkspace
(0007E19F) ntdll.dll
(0006BD91) ntdll.dll.KiUserExceptionDispatcher
(000208C8) TCustomScpExplorerForm::NeedSession
(00028238) TCustomScpExplorerForm::CMShowingChanged
(0002806E) TCustomScpExplorerForm::Dispatch
(00279915) Vcl::Controls::TWinControl::WndProc
(00233DDC) Vcl::Forms::TCustomForm::WndProc
(00E3EEF0) Vclcommon::C2992_0

(00019740) TCustomScpExplorerForm::DoOpenFolderOrWorkspace
(00F85292) C5296_3
(00F872FA) ____ExceptionHandler
(00F840B4) __ExceptionHandler
(0007E19F) ntdll.dll
(0006BD91) ntdll.dll.KiUserExceptionDispatcher
(000208C8) TCustomScpExplorerForm::NeedSession
(00028238) TCustomScpExplorerForm::CMShowingChanged
(0002806E) TCustomScpExplorerForm::Dispatch
(00279915) Vcl::Controls::TWinControl::WndProc
(00233DDC) Vcl::Forms::TCustomForm::WndProc
(00E3EEF0) Vclcommon::C2992_0

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

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

WinSCP 5.17.2

Error message:
Invalid access to memory.

Stack trace:
(00019740) TCustomScpExplorerForm::DoOpenFolderOrWorkspace
(00F85292) C5296_3
(00F872FA) ____ExceptionHandler
(00F840B4) __ExceptionHandler
(00087D7F) ntdll.dll
(00073221) ntdll.dll.KiUserExceptionDispatcher
(000208C8) TCustomScpExplorerForm::NeedSession
(00028238) TCustomScpExplorerForm::CMShowingChanged
(0002806E) TCustomScpExplorerForm::Dispatch
(00279915) Vcl::Controls::TWinControl::WndProc
(00233DDC) Vcl::Forms::TCustomForm::WndProc
(00E3EEF0) Vclcommon::C2992_0

(00019740) TCustomScpExplorerForm::DoOpenFolderOrWorkspace
(00087D7F) ntdll.dll
(00073221) ntdll.dll.KiUserExceptionDispatcher
(000208C8) TCustomScpExplorerForm::NeedSession
(00028238) TCustomScpExplorerForm::CMShowingChanged
(0002806E) TCustomScpExplorerForm::Dispatch
(00279915) Vcl::Controls::TWinControl::WndProc
(00233DDC) Vcl::Forms::TCustomForm::WndProc
(00E3EEF0) Vclcommon::C2992_0

(00019740) TCustomScpExplorerForm::DoOpenFolderOrWorkspace
(00F85292) C5296_3
(00F872FA) ____ExceptionHandler
(00F840B4) __ExceptionHandler
(00087D7F) ntdll.dll
(00073221) ntdll.dll.KiUserExceptionDispatcher
(000208C8) TCustomScpExplorerForm::NeedSession
(00028238) TCustomScpExplorerForm::CMShowingChanged
(0002806E) TCustomScpExplorerForm::Dispatch
(00279915) Vcl::Controls::TWinControl::WndProc
(00233DDC) Vcl::Forms::TCustomForm::WndProc
(00E3EEF0) Vclcommon::C2992_0

The problem happens rarely. I cannot reproduce it.

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

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

WinSCP 5.17.2

Error message:
Ongeldige toegang tot geheugen.

Stack trace:
(00019740) TCustomScpExplorerForm::DoOpenFolderOrWorkspace
(00F85292) C5296_3
(00F872FA) ____ExceptionHandler
(00F840B4) __ExceptionHandler
(00087D7F) ntdll.dll
(00073221) ntdll.dll.KiUserExceptionDispatcher
(000208C8) TCustomScpExplorerForm::NeedSession
(00028238) TCustomScpExplorerForm::CMShowingChanged
(0002806E) TCustomScpExplorerForm::Dispatch
(00279915) Vcl::Controls::TWinControl::WndProc
(00233DDC) Vcl::Forms::TCustomForm::WndProc
(00E3EEF0) Vclcommon::C2992_0

(00019740) TCustomScpExplorerForm::DoOpenFolderOrWorkspace
(00087D7F) ntdll.dll
(00073221) ntdll.dll.KiUserExceptionDispatcher
(000208C8) TCustomScpExplorerForm::NeedSession
(00028238) TCustomScpExplorerForm::CMShowingChanged
(0002806E) TCustomScpExplorerForm::Dispatch
(00279915) Vcl::Controls::TWinControl::WndProc
(00233DDC) Vcl::Forms::TCustomForm::WndProc
(00E3EEF0) Vclcommon::C2992_0

(00019740) TCustomScpExplorerForm::DoOpenFolderOrWorkspace
(00F85292) C5296_3
(00F872FA) ____ExceptionHandler
(00F840B4) __ExceptionHandler
(00087D7F) ntdll.dll
(00073221) ntdll.dll.KiUserExceptionDispatcher
(000208C8) TCustomScpExplorerForm::NeedSession
(00028238) TCustomScpExplorerForm::CMShowingChanged
(0002806E) TCustomScpExplorerForm::Dispatch
(00279915) Vcl::Controls::TWinControl::WndProc
(00233DDC) Vcl::Forms::TCustomForm::WndProc
(00E3EEF0) Vclcommon::C2992_0

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.)> It happened randomly, I've no idea how to reproduce it, but the winscp is unusable now for me
<If relevant, consider attaching a session log file or a screenshot)>

WinSCP 5.17.1

Error message:
Invalid access to memory.

Stack trace:
(00019740) TCustomScpExplorerForm::DoOpenFolderOrWorkspace
(00F84E6A) C5296_3
(00F86ED2) ____ExceptionHandler
(00F83C8C) __ExceptionHandler
(00087D7F) ntdll.dll
(00073221) ntdll.dll.KiUserExceptionDispatcher
(000208C8) TCustomScpExplorerForm::NeedSession
(00028238) TCustomScpExplorerForm::CMShowingChanged
(0002806E) TCustomScpExplorerForm::Dispatch
(00279915) Vcl::Controls::TWinControl::WndProc
(00233DDC) Vcl::Forms::TCustomForm::WndProc
(00E3EAC8) Vclcommon::C2992_0

(00019740) TCustomScpExplorerForm::DoOpenFolderOrWorkspace
(00087D7F) ntdll.dll
(00073221) ntdll.dll.KiUserExceptionDispatcher
(000208C8) TCustomScpExplorerForm::NeedSession
(00028238) TCustomScpExplorerForm::CMShowingChanged
(0002806E) TCustomScpExplorerForm::Dispatch
(00279915) Vcl::Controls::TWinControl::WndProc
(00233DDC) Vcl::Forms::TCustomForm::WndProc
(00E3EAC8) Vclcommon::C2992_0

(00019740) TCustomScpExplorerForm::DoOpenFolderOrWorkspace
(00F84E6A) C5296_3
(00F86ED2) ____ExceptionHandler
(00F83C8C) __ExceptionHandler
(00087D7F) ntdll.dll
(00073221) ntdll.dll.KiUserExceptionDispatcher
(000208C8) TCustomScpExplorerForm::NeedSession
(00028238) TCustomScpExplorerForm::CMShowingChanged
(0002806E) TCustomScpExplorerForm::Dispatch
(00279915) Vcl::Controls::TWinControl::WndProc
(00233DDC) Vcl::Forms::TCustomForm::WndProc
(00E3EAC8) Vclcommon::C2992_0

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

Error message:
Invalid access to memory.

Stack trace:
(00019740) TCustomScpExplorerForm::DoOpenFolderOrWorkspace
(00F85D26) C5296_3
(00F87D8E) ____ExceptionHandler
(00F84B48) __ExceptionHandler
(0003EF5E) ntdll.dll.ZwWow64CallFunction64
(0003F6EA) ntdll.dll.KiUserExceptionDispatcher
(000208C8) TCustomScpExplorerForm::NeedSession
(00028238) TCustomScpExplorerForm::CMShowingChanged
(0002806E) TCustomScpExplorerForm::Dispatch
(00279905) Vcl::Controls::TWinControl::WndProc
(00233DCC) Vcl::Forms::TCustomForm::WndProc
(00E3FBB0) Vclcommon::C2992_0

(00019740) TCustomScpExplorerForm::DoOpenFolderOrWorkspace
(0003EF5E) ntdll.dll.ZwWow64CallFunction64
(0003F6EA) ntdll.dll.KiUserExceptionDispatcher
(000208C8) TCustomScpExplorerForm::NeedSession
(00028238) TCustomScpExplorerForm::CMShowingChanged
(0002806E) TCustomScpExplorerForm::Dispatch
(00279905) Vcl::Controls::TWinControl::WndProc
(00233DCC) Vcl::Forms::TCustomForm::WndProc
(00E3FBB0) Vclcommon::C2992_0

(00019740) TCustomScpExplorerForm::DoOpenFolderOrWorkspace
(00F85D26) C5296_3
(00F87D8E) ____ExceptionHandler
(00F84B48) __ExceptionHandler
(0003EF5E) ntdll.dll.ZwWow64CallFunction64
(0003F6EA) ntdll.dll.KiUserExceptionDispatcher
(000208C8) TCustomScpExplorerForm::NeedSession
(00028238) TCustomScpExplorerForm::CMShowingChanged
(0002806E) TCustomScpExplorerForm::Dispatch
(00279905) Vcl::Controls::TWinControl::WndProc
(00233DCC) Vcl::Forms::TCustomForm::WndProc
(00E3FBB0) Vclcommon::C2992_0

The problem happens rarely. I cannot reproduce it.