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jsanfel@...

Acceso a memoria no válido - TFTPFileSystem::HandleCapabilities

<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 6.5.2

Error message:
Acceso a memoria no válido

Rastreo de la pila:
(00C1F443) TFTPFileSystem::HandleCapabilities
(00EF4EAE)
(00EF6F26)
(00EF3CD0) __ExceptionHandler
(000B140F) ntdll.dll
(0007ADEA) ntdll.dll.KiUserExceptionDispatcher
(00C18E58) TFTPFileSystem::ProcessMessage
(00C18E8F) TFTPFileSystem::DiscardMessages
(00C0B57B) TFTPFileSystem::~TFTPFileSystem
(00D2E437) TTerminal::~TTerminal
(000C64DA) TManagedTerminal::~TManagedTerminal
(000CB06E) TTerminalManager::FreeTerminal
(000CA2D3) TTerminalManager::FreeActiveTerminal
(000CA9C4) TTerminalManager::ConnectActiveTerminal
(000CB472) TTerminalManager::DoSetActiveSession
(000CB128) TTerminalManager::SetActiveSession
(000252CC) TCustomScpExplorerForm::NeedSession
(0005B803) TScpCommanderForm::NeedSession
(0002D8B1) TCustomScpExplorerForm::CMShowingChanged
(0002D5A0) TCustomScpExplorerForm::Dispatch
(0039E2AA) Vcl::Controls::TControl::WndProc
(003A3455) Vcl::Controls::TWinControl::WndProc
(004A769C) Vcl::Forms::TCustomForm::WndProc
(00E04A2C) Vclcommon::C4884_0
(00E04BEE) Vclcommon::C4884_0
(0039DEE0) Vcl::Controls::TControl::Perform
(003A2701) Vcl::Controls::TWinControl::UpdateShowing
(003A2816) Vcl::Controls::TWinControl::UpdateControlState
(003A55DA) Vcl::Controls::TWinControl::CMVisibleChanged
(0039E2AA) Vcl::Controls::TControl::WndProc
(003A3455) Vcl::Controls::TWinControl::WndProc
(004A769C) Vcl::Forms::TCustomForm::WndProc
(00E04CB3) Vclcommon::C4884_0
(0039DEE0) Vcl::Controls::TControl::Perform
(0039C90E) Vcl::Controls::TControl::SetVisible
(0012A131) Execute
(000033BB) wWinMain
(00EF2BF1) C7146_0
(0006C1A9) ntdll.dll
(0006C12C) ntdll.dll

(00C1F443) TFTPFileSystem::HandleCapabilities
(000B140F) ntdll.dll
(0007ADEA) ntdll.dll.KiUserExceptionDispatcher
(00C18E58) TFTPFileSystem::ProcessMessage
(00C18E8F) TFTPFileSystem::DiscardMessages
(00C0B57B) TFTPFileSystem::~TFTPFileSystem
(00D2E437) TTerminal::~TTerminal
(000C64DA) TManagedTerminal::~TManagedTerminal
(000CB06E) TTerminalManager::FreeTerminal
(000CA2D3) TTerminalManager::FreeActiveTerminal
(000CA9C4) TTerminalManager::ConnectActiveTerminal
(000CB472) TTerminalManager::DoSetActiveSession
(000CB128) TTerminalManager::SetActiveSession
(000252CC) TCustomScpExplorerForm::NeedSession
(0005B803) TScpCommanderForm::NeedSession
(0002D8B1) TCustomScpExplorerForm::CMShowingChanged
(0002D5A0) TCustomScpExplorerForm::Dispatch
(0039E2AA) Vcl::Controls::TControl::WndProc
(003A3455) Vcl::Controls::TWinControl::WndProc
(004A769C) Vcl::Forms::TCustomForm::WndProc
(00E04A2C) Vclcommon::C4884_0
(00E04BEE) Vclcommon::C4884_0
(0039DEE0) Vcl::Controls::TControl::Perform
(003A2701) Vcl::Controls::TWinControl::UpdateShowing
(003A2816) Vcl::Controls::TWinControl::UpdateControlState
(003A55DA) Vcl::Controls::TWinControl::CMVisibleChanged
(0039E2AA) Vcl::Controls::TControl::WndProc
(003A3455) Vcl::Controls::TWinControl:%

The problem happens rarely. I cannot reproduce it.
jonypom@...

Acceso a memoria no válido - TFTPFileSystem::HandleCapabilities

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

WinSCP 6.3.6

Error message:
Acceso a memoria no válido

Rastreo de la pila:
(00B55AAF) TFTPFileSystem::HandleCapabilities
(00E24D56) C6612_3
(00E26DBE) ____ExceptionHandler
(00E23B78) __ExceptionHandler
(0009909F) ntdll.dll
(00078371) ntdll.dll.KiUserExceptionDispatcher
(00B4F4D0) TFTPFileSystem::ProcessMessage
(00B4F507) TFTPFileSystem::DiscardMessages
(00B41BFB) TFTPFileSystem::~TFTPFileSystem
(00C5CEFF) TTerminal::~TTerminal
(000C0DA8) TManagedTerminal::~TManagedTerminal
(000C29D7) TTerminalManager::FreeTerminal
(000C1C4F) TTerminalManager::FreeActiveTerminal
(000C2344) TTerminalManager::ConnectActiveTerminal
(000C2DD3) TTerminalManager::DoSetActiveSession
(000C2A90) TTerminalManager::SetActiveSession
(000246C8) TCustomScpExplorerForm::NeedSession
(000599B3) TScpCommanderForm::NeedSession
(0002CC31) TCustomScpExplorerForm::CMShowingChanged
(0002C91E) TCustomScpExplorerForm::Dispatch
(00404511) Vcl::Controls::TControl::WndProc
(00409029) Vcl::Controls::TWinControl::WndProc
(003C3630) Vcl::Forms::TCustomForm::WndProc
(00D26928) Vclcommon::C4303_0

(00B55AAF) TFTPFileSystem::HandleCapabilities
(0009909F) ntdll.dll
(00078371) ntdll.dll.KiUserExceptionDispatcher
(00B4F4D0) TFTPFileSystem::ProcessMessage
(00B4F507) TFTPFileSystem::DiscardMessages
(00B41BFB) TFTPFileSystem::~TFTPFileSystem
(00C5CEFF) TTerminal::~TTerminal
(000C0DA8) TManagedTerminal::~TManagedTerminal
(000C29D7) TTerminalManager::FreeTerminal
(000C1C4F) TTerminalManager::FreeActiveTerminal
(000C2344) TTerminalManager::ConnectActiveTerminal
(000C2DD3) TTerminalManager::DoSetActiveSession
(000C2A90) TTerminalManager::SetActiveSession
(000246C8) TCustomScpExplorerForm::NeedSession
(000599B3) TScpCommanderForm::NeedSession
(0002CC31) TCustomScpExplorerForm::CMShowingChanged
(0002C91E) TCustomScpExplorerForm::Dispatch
(00404511) Vcl::Controls::TControl::WndProc
(00409029) Vcl::Controls::TWinControl::WndProc
(003C3630) Vcl::Forms::TCustomForm::WndProc
(00D26928) Vclcommon::C4303_0

(00B55AAF) TFTPFileSystem::HandleCapabilities
(00E24D56) C6612_3
(00E26DBE) ____ExceptionHandler
(00E23B78) __ExceptionHandler
(0009909F) ntdll.dll
(00078371) ntdll.dll.KiUserExceptionDispatcher
(00B4F4D0) TFTPFileSystem::ProcessMessage
(00B4F507) TFTPFileSystem::DiscardMessages
(00B41BFB) TFTPFileSystem::~TFTPFileSystem
(00C5CEFF) TTerminal::~TTerminal
(000C0DA8) TManagedTerminal::~TManagedTerminal
(000C29D7) TTerminalManager::FreeTerminal
(000C1C4F) TTerminalManager::FreeActiveTerminal
(000C2344) TTerminalManager::ConnectActiveTerminal
(000C2DD3) TTerminalManager::DoSetActiveSession
(000C2A90) TTerminalManager::SetActiveSession
(000246C8) TCustomScpExplorerForm::NeedSession
(000599B3) TScpCommanderForm::NeedSession
(0002CC31) TCustomScpExplorerForm::CMShowingChanged
(0002C91E) TCustomScpExplorerForm::Dispatch
(00404511) Vcl::Controls::TControl::WndProc
(00409029) Vcl::Controls::TWinControl::WndProc
(003C3630) Vcl::Forms::TCustomForm::WndProc
(00D2

The problem happens rarely. I cannot reproduce it.
lugge.wa@...

Unzulässiger Zugriff auf einen Speicherbereich - TFTPFileSystem::HandleCapabilities

<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 6.1.2

Error message:
Unzulässiger Zugriff auf einen Speicherbereich.

Stapelverfolgung:
(00CF92FB) TFTPFileSystem::HandleCapabilities
(01003DEA) C6083_0
(01005E52) ____ExceptionHandler
(01002C0C) __ExceptionHandler
(00087A7F) ntdll.dll
(000740D1) ntdll.dll.KiUserExceptionDispatcher
(00CF2694) TFTPFileSystem::ProcessMessage
(00CF26CB) TFTPFileSystem::DiscardMessages
(00CE4CC7) TFTPFileSystem::~TFTPFileSystem
(00DF514B) TTerminal::~TTerminal
(000BCC04) TManagedTerminal::~TManagedTerminal
(000BE787) TTerminalManager::FreeTerminal
(000BDAA3) TTerminalManager::FreeActiveTerminal
(000BE0F4) TTerminalManager::ConnectActiveTerminal
(000BEB69) TTerminalManager::DoSetActiveSession
(000BE840) TTerminalManager::SetActiveSession
(0002396C) TCustomScpExplorerForm::NeedSession
(00057BBF) TScpCommanderForm::NeedSession
(0002BCA5) TCustomScpExplorerForm::CMShowingChanged
(0002BA67) TCustomScpExplorerForm::Dispatch
(003F6B91) Vcl::Controls::TWinControl::WndProc
(003B10A0) Vcl::Forms::TCustomForm::WndProc
(00EBA0F8) Vclcommon::C3781_0

(00CF92FB) TFTPFileSystem::HandleCapabilities
(00087A7F) ntdll.dll
(000740D1) ntdll.dll.KiUserExceptionDispatcher
(00CF2694) TFTPFileSystem::ProcessMessage
(00CF26CB) TFTPFileSystem::DiscardMessages
(00CE4CC7) TFTPFileSystem::~TFTPFileSystem
(00DF514B) TTerminal::~TTerminal
(000BCC04) TManagedTerminal::~TManagedTerminal
(000BE787) TTerminalManager::FreeTerminal
(000BDAA3) TTerminalManager::FreeActiveTerminal
(000BE0F4) TTerminalManager::ConnectActiveTerminal
(000BEB69) TTerminalManager::DoSetActiveSession
(000BE840) TTerminalManager::SetActiveSession
(0002396C) TCustomScpExplorerForm::NeedSession
(00057BBF) TScpCommanderForm::NeedSession
(0002BCA5) TCustomScpExplorerForm::CMShowingChanged
(0002BA67) TCustomScpExplorerForm::Dispatch
(003F6B91) Vcl::Controls::TWinControl::WndProc
(003B10A0) Vcl::Forms::TCustomForm::WndProc
(00EBA0F8) Vclcommon::C3781_0

(00CF92FB) TFTPFileSystem::HandleCapabilities
(01003DEA) C6083_0
(01005E52) ____ExceptionHandler
(01002C0C) __ExceptionHandler
(00087A7F) ntdll.dll
(000740D1) ntdll.dll.KiUserExceptionDispatcher
(00CF2694) TFTPFileSystem::ProcessMessage
(00CF26CB) TFTPFileSystem::DiscardMessages
(00CE4CC7) TFTPFileSystem::~TFTPFileSystem
(00DF514B) TTerminal::~TTerminal
(000BCC04) TManagedTerminal::~TManagedTerminal
(000BE787) TTerminalManager::FreeTerminal
(000BDAA3) TTerminalManager::FreeActiveTerminal
(000BE0F4) TTerminalManager::ConnectActiveTerminal
(000BEB69) TTerminalManager::DoSetActiveSession
(000BE840) TTerminalManager::SetActiveSession
(0002396C) TCustomScpExplorerForm::NeedSession
(00057BBF) TScpCommanderForm::NeedSession
(0002BCA5) TCustomScpExplorerForm::CMShowingChanged
(0002BA67) TCustomScpExplorerForm::Dispatch
(003F6B91) Vcl::Controls::TWinControl::WndProc
(003B10A0) Vcl::Forms::TCustomForm::WndProc
(00EBA0F8) Vclcommon::C3781_0

The problem happens rarely. I cannot reproduce it.
dh@...

Unzulässiger Zugriff auf einen Speicherbereich - TFTPFileSystem::HandleCapabilities

Closing WinSCP. Two Instances were running, error happenend on closing second instance shortly after clsoing the first one. Connection on both was interruptede, as VPN was shut down

WinSCP 6.1.2

Error message:
Unzulässiger Zugriff auf einen Speicherbereich.

Stapelverfolgung:
(00CF92FB) TFTPFileSystem::HandleCapabilities
(01003DEA) C6083_0
(01005E52) ____ExceptionHandler
(01002C0C) __ExceptionHandler
(0009812F) ntdll.dll
(00077D31) ntdll.dll.KiUserExceptionDispatcher
(00CF2694) TFTPFileSystem::ProcessMessage
(00CF26CB) TFTPFileSystem::DiscardMessages
(00CE4CC7) TFTPFileSystem::~TFTPFileSystem
(00DF514B) TTerminal::~TTerminal
(000BCC04) TManagedTerminal::~TManagedTerminal
(000BE787) TTerminalManager::FreeTerminal
(000BE50A) TTerminalManager::FreeAll
(000BD1E3) TTerminalManager::~TTerminalManager
(000BCCAC) TTerminalManager::DestroyInstance
(001179EC) Execute
(000027EF) wWinMain
(01001DFD) C5951_0
(0006AD29) ntdll.dll
(0006ACAA) ntdll.dll

The problem happens rarely. I cannot reproduce it.
robertcatacutan1427@...

Invalid access to memory - TFTPFileSystem::HandleCapabilities

<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 6.1.1

Error message:
Invalid access to memory.

Stack trace:
(00CF8A3B) TFTPFileSystem::HandleCapabilities
(0100350E) C6083_0
(01005576) ____ExceptionHandler
(01002330) __ExceptionHandler
(000974CF) ntdll.dll
(00077751) ntdll.dll.KiUserExceptionDispatcher
(00CF1DD4) TFTPFileSystem::ProcessMessage
(00CF1E0B) TFTPFileSystem::DiscardMessages
(00CE4407) TFTPFileSystem::~TFTPFileSystem
(00DF488B) TTerminal::~TTerminal
(000BC350) TManagedTerminal::~TManagedTerminal
(000BDED3) TTerminalManager::FreeTerminal
(000BD1EF) TTerminalManager::FreeActiveTerminal
(000BD840) TTerminalManager::ConnectActiveTerminal
(000BE2B5) TTerminalManager::DoSetActiveSession
(000BDF8C) TTerminalManager::SetActiveSession
(0002396C) TCustomScpExplorerForm::NeedSession
(00057B57) TScpCommanderForm::NeedSession
(0002BCA5) TCustomScpExplorerForm::CMShowingChanged
(0002BA67) TCustomScpExplorerForm::Dispatch
(003F62DD) Vcl::Controls::TWinControl::WndProc
(003B07EC) Vcl::Forms::TCustomForm::WndProc
(00EB9838) Vclcommon::C3781_0

(00CF8A3B) TFTPFileSystem::HandleCapabilities
(000974CF) ntdll.dll
(00077751) ntdll.dll.KiUserExceptionDispatcher
(00CF1DD4) TFTPFileSystem::ProcessMessage
(00CF1E0B) TFTPFileSystem::DiscardMessages
(00CE4407) TFTPFileSystem::~TFTPFileSystem
(00DF488B) TTerminal::~TTerminal
(000BC350) TManagedTerminal::~TManagedTerminal
(000BDED3) TTerminalManager::FreeTerminal
(000BD1EF) TTerminalManager::FreeActiveTerminal
(000BD840) TTerminalManager::ConnectActiveTerminal
(000BE2B5) TTerminalManager::DoSetActiveSession
(000BDF8C) TTerminalManager::SetActiveSession
(0002396C) TCustomScpExplorerForm::NeedSession
(00057B57) TScpCommanderForm::NeedSession
(0002BCA5) TCustomScpExplorerForm::CMShowingChanged
(0002BA67) TCustomScpExplorerForm::Dispatch
(003F62DD) Vcl::Controls::TWinControl::WndProc
(003B07EC) Vcl::Forms::TCustomForm::WndProc
(00EB9838) Vclcommon::C3781_0

(00CF8A3B) TFTPFileSystem::HandleCapabilities
(0100350E) C6083_0
(01005576) ____ExceptionHandler
(01002330) __ExceptionHandler
(000974CF) ntdll.dll
(00077751) ntdll.dll.KiUserExceptionDispatcher
(00CF1DD4) TFTPFileSystem::ProcessMessage
(00CF1E0B) TFTPFileSystem::DiscardMessages
(00CE4407) TFTPFileSystem::~TFTPFileSystem
(00DF488B) TTerminal::~TTerminal
(000BC350) TManagedTerminal::~TManagedTerminal
(000BDED3) TTerminalManager::FreeTerminal
(000BD1EF) TTerminalManager::FreeActiveTerminal
(000BD840) TTerminalManager::ConnectActiveTerminal
(000BE2B5) TTerminalManager::DoSetActiveSession
(000BDF8C) TTerminalManager::SetActiveSession
(0002396C) TCustomScpExplorerForm::NeedSession
(00057B57) TScpCommanderForm::NeedSession
(0002BCA5) TCustomScpExplorerForm::CMShowingChanged
(0002BA67) TCustomScpExplorerForm::Dispatch
(003F62DD) Vcl::Controls::TWinControl::WndProc
(003B07EC) Vcl::Forms::TCustomForm::WndProc
(00EB9838) Vclcommon::C3781_0

The problem happens rarely. I cannot reproduce it.
martin

Re: Invalid access to memory - TFTPFileSystem::HandleCapabilities

@coates166: 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.
coates166@...

Invalid access to memory - TFTPFileSystem::HandleCapabilities

<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 5.21.7

Error message:
Invalid access to memory.

Stack trace:
(00CDFED3) TFTPFileSystem::HandleCapabilities
(00FDF7C2) C5412_0
(00FE182A) ____ExceptionHandler
(00FDE5E4) __ExceptionHandler
(000974CF) ntdll.dll
(00077751) ntdll.dll.KiUserExceptionDispatcher
(00CD9368) TFTPFileSystem::ProcessMessage
(00CD939F) TFTPFileSystem::DiscardMessages
(00CCBC87) TFTPFileSystem::~TFTPFileSystem
(00DD5CB3) TTerminal::~TTerminal
(000B21BA) TManagedTerminal::~TManagedTerminal
(000B3AD5) TTerminalManager::FreeTerminal
(000B38E6) TTerminalManager::FreeAll
(000B27A3) TTerminalManager::~TTerminalManager
(000B2260) TTerminalManager::DestroyInstance
(0010B1B5) Execute
(000027FA) wWinMain
(00FDD7D5) __wstartup
(0006A749) ntdll.dll
(0006A6CA) ntdll.dll

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

Invalid access to memory - TFTPFileSystem::HandleCapabilities

<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 5.21.7

Error message:
Invalid access to memory.

Stack trace:
(00CDFED3) TFTPFileSystem::HandleCapabilities
(00FDF7C2) C5412_0
(00FE182A) ____ExceptionHandler
(00FDE5E4) __ExceptionHandler
(000974CF) ntdll.dll
(00077751) ntdll.dll.KiUserExceptionDispatcher
(00CD9368) TFTPFileSystem::ProcessMessage
(00CD939F) TFTPFileSystem::DiscardMessages
(00CCBC87) TFTPFileSystem::~TFTPFileSystem
(00DD5CB3) TTerminal::~TTerminal
(000B21BA) TManagedTerminal::~TManagedTerminal
(000B3AD5) TTerminalManager::FreeTerminal
(000B2EDB) TTerminalManager::FreeActiveTerminal
(000B34FF) TTerminalManager::ConnectActiveTerminal
(000B3E40) TTerminalManager::DoSetActiveTerminal
(000B3B6E) TTerminalManager::SetActiveTerminal
(00021F5A) TCustomScpExplorerForm::NeedSession
(0002A123) TCustomScpExplorerForm::CMShowingChanged
(00029EF7) TCustomScpExplorerForm::Dispatch
(002824BD) Vcl::Controls::TWinControl::WndProc
(0023C984) Vcl::Forms::TCustomForm::WndProc
(00E95E10) Vclcommon::C3109_0

(00CDFED3) TFTPFileSystem::HandleCapabilities
(000974CF) ntdll.dll
(00077751) ntdll.dll.KiUserExceptionDispatcher
(00CD9368) TFTPFileSystem::ProcessMessage
(00CD939F) TFTPFileSystem::DiscardMessages
(00CCBC87) TFTPFileSystem::~TFTPFileSystem
(00DD5CB3) TTerminal::~TTerminal
(000B21BA) TManagedTerminal::~TManagedTerminal
(000B3AD5) TTerminalManager::FreeTerminal
(000B2EDB) TTerminalManager::FreeActiveTerminal
(000B34FF) TTerminalManager::ConnectActiveTerminal
(000B3E40) TTerminalManager::DoSetActiveTerminal
(000B3B6E) TTerminalManager::SetActiveTerminal
(00021F5A) TCustomScpExplorerForm::NeedSession
(0002A123) TCustomScpExplorerForm::CMShowingChanged
(00029EF7) TCustomScpExplorerForm::Dispatch
(002824BD) Vcl::Controls::TWinControl::WndProc
(0023C984) Vcl::Forms::TCustomForm::WndProc
(00E95E10) Vclcommon::C3109_0

(00CDFED3) TFTPFileSystem::HandleCapabilities
(00FDF7C2) C5412_0
(00FE182A) ____ExceptionHandler
(00FDE5E4) __ExceptionHandler
(000974CF) ntdll.dll
(00077751) ntdll.dll.KiUserExceptionDispatcher
(00CD9368) TFTPFileSystem::ProcessMessage
(00CD939F) TFTPFileSystem::DiscardMessages
(00CCBC87) TFTPFileSystem::~TFTPFileSystem
(00DD5CB3) TTerminal::~TTerminal
(000B21BA) TManagedTerminal::~TManagedTerminal
(000B3AD5) TTerminalManager::FreeTerminal
(000B2EDB) TTerminalManager::FreeActiveTerminal
(000B34FF) TTerminalManager::ConnectActiveTerminal
(000B3E40) TTerminalManager::DoSetActiveTerminal
(000B3B6E) TTerminalManager::SetActiveTerminal
(00021F5A) TCustomScpExplorerForm::NeedSession
(0002A123) TCustomScpExplorerForm::CMShowingChanged
(00029EF7) TCustomScpExplorerForm::Dispatch
(002824BD) Vcl::Controls::TWinControl::WndProc
(0023C984) Vcl::Forms::TCustomForm::WndProc
(00E95E10) Vclcommon::C3109_0

The problem happens rarely. I cannot reproduce it.
flabelle@...

Invalid access to memory - TFTPFileSystem::HandleCapabilities

Simply trying to connect to a previously working session...


WinSCP 5.21.6

Error message:
Invalid access to memory.

Stack trace:
(00CDFEA7) TFTPFileSystem::HandleCapabilities
(00FDF74E) C5412_0
(00FE17B6) ____ExceptionHandler
(00FDE570) __ExceptionHandler
(00097C6F) ntdll.dll
(00077BA1) ntdll.dll.KiUserExceptionDispatcher
(00CD933C) TFTPFileSystem::ProcessMessage
(00CD9373) TFTPFileSystem::DiscardMessages
(00CCBC5B) TFTPFileSystem::~TFTPFileSystem
(00DD5C87) TTerminal::~TTerminal
(000B218E) TManagedTerminal::~TManagedTerminal
(000B3AA9) TTerminalManager::FreeTerminal
(000B2EAF) TTerminalManager::FreeActiveTerminal
(000B34D3) TTerminalManager::ConnectActiveTerminal
(000B3E14) TTerminalManager::DoSetActiveTerminal
(000B3B42) TTerminalManager::SetActiveTerminal
(00021F5A) TCustomScpExplorerForm::NeedSession
(0002A123) TCustomScpExplorerForm::CMShowingChanged
(00029EF7) TCustomScpExplorerForm::Dispatch
(00282491) Vcl::Controls::TWinControl::WndProc
(0023C958) Vcl::Forms::TCustomForm::WndProc
(00E95D9C) Vclcommon::C3109_0

(00CDFEA7) TFTPFileSystem::HandleCapabilities
(00097C6F) ntdll.dll
(00077BA1) ntdll.dll.KiUserExceptionDispatcher
(00CD933C) TFTPFileSystem::ProcessMessage
(00CD9373) TFTPFileSystem::DiscardMessages
(00CCBC5B) TFTPFileSystem::~TFTPFileSystem
(00DD5C87) TTerminal::~TTerminal
(000B218E) TManagedTerminal::~TManagedTerminal
(000B3AA9) TTerminalManager::FreeTerminal
(000B2EAF) TTerminalManager::FreeActiveTerminal
(000B34D3) TTerminalManager::ConnectActiveTerminal
(000B3E14) TTerminalManager::DoSetActiveTerminal
(000B3B42) TTerminalManager::SetActiveTerminal
(00021F5A) TCustomScpExplorerForm::NeedSession
(0002A123) TCustomScpExplorerForm::CMShowingChanged
(00029EF7) TCustomScpExplorerForm::Dispatch
(00282491) Vcl::Controls::TWinControl::WndProc
(0023C958) Vcl::Forms::TCustomForm::WndProc
(00E95D9C) Vclcommon::C3109_0

(00CDFEA7) TFTPFileSystem::HandleCapabilities
(00FDF74E) C5412_0
(00FE17B6) ____ExceptionHandler
(00FDE570) __ExceptionHandler
(00097C6F) ntdll.dll
(00077BA1) ntdll.dll.KiUserExceptionDispatcher
(00CD933C) TFTPFileSystem::ProcessMessage
(00CD9373) TFTPFileSystem::DiscardMessages
(00CCBC5B) TFTPFileSystem::~TFTPFileSystem
(00DD5C87) TTerminal::~TTerminal
(000B218E) TManagedTerminal::~TManagedTerminal
(000B3AA9) TTerminalManager::FreeTerminal
(000B2EAF) TTerminalManager::FreeActiveTerminal
(000B34D3) TTerminalManager::ConnectActiveTerminal
(000B3E14) TTerminalManager::DoSetActiveTerminal
(000B3B42) TTerminalManager::SetActiveTerminal
(00021F5A) TCustomScpExplorerForm::NeedSession
(0002A123) TCustomScpExplorerForm::CMShowingChanged
(00029EF7) TCustomScpExplorerForm::Dispatch
(00282491) Vcl::Controls::TWinControl::WndProc
(0023C958) Vcl::Forms::TCustomForm::WndProc
(00E95D9C) Vclcommon::C3109_0

The problem happens rarely. I cannot reproduce it.
syedabdulla66@...

Invalid access to memory - TFTPFileSystem::HandleCapabilities

<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:
(00C9FA07) TFTPFileSystem::HandleCapabilities
(00F8A13A) C5296_0
(00F8C1A2) ____ExceptionHandler
(00F88F5C) __ExceptionHandler
(0007E1AF) ntdll.dll
(0006BD91) ntdll.dll.KiUserExceptionDispatcher
(00C99AF0) TFTPFileSystem::ProcessMessage
(00C99B0D) TFTPFileSystem::DiscardMessages
(00D89ADF) TTerminal::~TTerminal
(000AADAA) TManagedTerminal::~TManagedTerminal
(000AC569) TTerminalManager::FreeTerminal
(000AB9A3) TTerminalManager::FreeActiveTerminal
(000ABF98) TTerminalManager::ConnectActiveTerminal
(000AC8B5) TTerminalManager::DoSetActiveTerminal
(000AC602) TTerminalManager::SetActiveTerminal
(0002083F) TCustomScpExplorerForm::NeedSession
(00028270) TCustomScpExplorerForm::CMShowingChanged
(000280A7) TCustomScpExplorerForm::Dispatch
(0027AD15) Vcl::Controls::TWinControl::WndProc
(002351DC) Vcl::Forms::TCustomForm::WndProc
(00E43880) Vclcommon::C2992_0

(00C9FA07) TFTPFileSystem::HandleCapabilities
(0007E1AF) ntdll.dll
(0006BD91) ntdll.dll.KiUserExceptionDispatcher
(00C99AF0) TFTPFileSystem::ProcessMessage
(00C99B0D) TFTPFileSystem::DiscardMessages
(00D89ADF) TTerminal::~TTerminal
(000AADAA) TManagedTerminal::~TManagedTerminal
(000AC569) TTerminalManager::FreeTerminal
(000AB9A3) TTerminalManager::FreeActiveTerminal
(000ABF98) TTerminalManager::ConnectActiveTerminal
(000AC8B5) TTerminalManager::DoSetActiveTerminal
(000AC602) TTerminalManager::SetActiveTerminal
(0002083F) TCustomScpExplorerForm::NeedSession
(00028270) TCustomScpExplorerForm::CMShowingChanged
(000280A7) TCustomScpExplorerForm::Dispatch
(0027AD15) Vcl::Controls::TWinControl::WndProc
(002351DC) Vcl::Forms::TCustomForm::WndProc
(00E43880) Vclcommon::C2992_0

(00C9FA07) TFTPFileSystem::HandleCapabilities
(00F8A13A) C5296_0
(00F8C1A2) ____ExceptionHandler
(00F88F5C) __ExceptionHandler
(0007E1AF) ntdll.dll
(0006BD91) ntdll.dll.KiUserExceptionDispatcher
(00C99AF0) TFTPFileSystem::ProcessMessage
(00C99B0D) TFTPFileSystem::DiscardMessages
(00D89ADF) TTerminal::~TTerminal
(000AADAA) TManagedTerminal::~TManagedTerminal
(000AC569) TTerminalManager::FreeTerminal
(000AB9A3) TTerminalManager::FreeActiveTerminal
(000ABF98) TTerminalManager::ConnectActiveTerminal
(000AC8B5) TTerminalManager::DoSetActiveTerminal
(000AC602) TTerminalManager::SetActiveTerminal
(0002083F) TCustomScpExplorerForm::NeedSession
(00028270) TCustomScpExplorerForm::CMShowingChanged
(000280A7) TCustomScpExplorerForm::Dispatch
(0027AD15) Vcl::Controls::TWinControl::WndProc
(002351DC) Vcl::Forms::TCustomForm::WndProc
(00E43880) Vclcommon::C2992_0

The problem happens rarely. I cannot reproduce it.
ssaurav@...

Invalid access to memory - TFTPFileSystem::HandleCapabilities

<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:
(00C9FA07) TFTPFileSystem::HandleCapabilities
(00F8A13A) C5296_0
(00F8C1A2) ____ExceptionHandler
(00F88F5C) __ExceptionHandler
(00088F9F) ntdll.dll
(000741F1) ntdll.dll.KiUserExceptionDispatcher
(00C99AF0) TFTPFileSystem::ProcessMessage
(00C99B0D) TFTPFileSystem::DiscardMessages
(00D89ADF) TTerminal::~TTerminal
(000AADAA) TManagedTerminal::~TManagedTerminal
(000AC569) TTerminalManager::FreeTerminal
(000AB9A3) TTerminalManager::FreeActiveTerminal
(000ABF98) TTerminalManager::ConnectActiveTerminal
(000AC8B5) TTerminalManager::DoSetActiveTerminal
(000AC602) TTerminalManager::SetActiveTerminal
(0002083F) TCustomScpExplorerForm::NeedSession
(000207B6) TCustomScpExplorerForm::LastTerminalClosed
(000AC602) TTerminalManager::SetActiveTerminal
(000AB9A3) TTerminalManager::FreeActiveTerminal
(000ABF98) TTerminalManager::ConnectActiveTerminal
(000AC8B5) TTerminalManager::DoSetActiveTerminal
(000AC602) TTerminalManager::SetActiveTerminal
(0002083F) TCustomScpExplorerForm::NeedSession
(000207B6) TCustomScpExplorerForm::LastTerminalClosed
(000AC602) TTerminalManager::SetActiveTerminal
(000AB9A3) TTerminalManager::FreeActiveTerminal
(000ABF98) TTerminalManager::ConnectActiveTerminal
(000AC8B5) TTerminalManager::DoSetActiveTerminal
(000AC602) TTerminalManager::SetActiveTerminal
(0002083F) TCustomScpExplorerForm::NeedSession
(000207B6) TCustomScpExplorerForm::LastTerminalClosed
(000AC602) TTerminalManager::SetActiveTerminal
(000AB9A3) TTerminalManager::FreeActiveTerminal
(000ABF98) TTerminalManager::ConnectActiveTerminal
(000AC8B5) TTerminalManager::DoSetActiveTerminal
(000AC602) TTerminalManager::SetActiveTerminal
(0002083F) TCustomScpExplorerForm::NeedSession
(00028270) TCustomScpExplorerForm::CMShowingChanged
(000280A7) TCustomScpExplorerForm::Dispatch
(0027AD15) Vcl::Controls::TWinControl::WndProc
(002351DC) Vcl::Forms::TCustomForm::WndProc
(00E43880) Vclcommon::C2992_0

(00C9FA07) TFTPFileSystem::HandleCapabilities
(00F8A13A) C5296_0
(00F8C1A2) ____ExceptionHandler
(00F88F5C) __ExceptionHandler
(00088F9F) ntdll.dll
(000741F1) ntdll.dll.KiUserExceptionDispatcher
(00C99AF0) TFTPFileSystem::ProcessMessage
(00C99B0D) TFTPFileSystem::DiscardMessages
(00D89ADF) TTerminal::~TTerminal
(000AADAA) TManagedTerminal::~TManagedTerminal
(000AC569) TTerminalManager::FreeTerminal
(000AB9A3) TTerminalManager::FreeActiveTerminal
(000ABF98) TTerminalManager::ConnectActiveTerminal
(000AC8B5) TTerminalManager::DoSetActiveTerminal
(000AC602) TTerminalManager::SetActiveTerminal
(0002083F) TCustomScpExplorerForm::NeedSession
(000207B6) TCustomScpExplorerForm::LastTerminalClosed
(000AC602) TTerminalManager::SetActiveTerminal
(000AB9A3) TTerminalManager::FreeActiveTerminal
(000ABF98) TTerminalManager::ConnectActiveTerminal
(000AC8B5) TTerminalManager::DoSetActiveTerminal
(000AC602) TTerminalManager::SetActiveTerminal
(0002083F) TCustomScpExplorerForm::NeedSession
(000207B6) TCustomScpExplorerForm::LastTerminalClosed
(000AC602) TTerminalManager::S

The problem happens rarely. I cannot reproduce it.
logan@...

Invalid access to memory - TFTPFileSystem::HandleCapabilities

<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:
(00C9FA07) TFTPFileSystem::HandleCapabilities
(00F8A13A) C5296_0
(00F8C1A2) ____ExceptionHandler
(00F88F5C) __ExceptionHandler
(0008627F) ntdll.dll
(00072C01) ntdll.dll.KiUserExceptionDispatcher
(00C99AF0) TFTPFileSystem::ProcessMessage
(00C99B0D) TFTPFileSystem::DiscardMessages
(00D89ADF) TTerminal::~TTerminal
(000AADAA) TManagedTerminal::~TManagedTerminal
(000AC569) TTerminalManager::FreeTerminal
(000AB9A3) TTerminalManager::FreeActiveTerminal
(000ABF98) TTerminalManager::ConnectActiveTerminal
(000AC8B5) TTerminalManager::DoSetActiveTerminal
(000AC602) TTerminalManager::SetActiveTerminal
(0002083F) TCustomScpExplorerForm::NeedSession
(000207B6) TCustomScpExplorerForm::LastTerminalClosed
(000AC602) TTerminalManager::SetActiveTerminal
(000AB9A3) TTerminalManager::FreeActiveTerminal
(000ABF98) TTerminalManager::ConnectActiveTerminal
(000AC8B5) TTerminalManager::DoSetActiveTerminal
(000AC602) TTerminalManager::SetActiveTerminal
(0002083F) TCustomScpExplorerForm::NeedSession
(00028270) TCustomScpExplorerForm::CMShowingChanged
(000280A7) TCustomScpExplorerForm::Dispatch
(0027AD15) Vcl::Controls::TWinControl::WndProc
(002351DC) Vcl::Forms::TCustomForm::WndProc
(00E43880) Vclcommon::C2992_0

(00C9FA07) TFTPFileSystem::HandleCapabilities
(00F8A13A) C5296_0
(00F8C1A2) ____ExceptionHandler
(00F88F5C) __ExceptionHandler
(0008627F) ntdll.dll
(00072C01) ntdll.dll.KiUserExceptionDispatcher
(00C99AF0) TFTPFileSystem::ProcessMessage
(00C99B0D) TFTPFileSystem::DiscardMessages
(00D89ADF) TTerminal::~TTerminal
(000AADAA) TManagedTerminal::~TManagedTerminal
(000AC569) TTerminalManager::FreeTerminal
(000AB9A3) TTerminalManager::FreeActiveTerminal
(000ABF98) TTerminalManager::ConnectActiveTerminal
(000AC8B5) TTerminalManager::DoSetActiveTerminal
(000AC602) TTerminalManager::SetActiveTerminal
(0002083F) TCustomScpExplorerForm::NeedSession
(000207B6) TCustomScpExplorerForm::LastTerminalClosed
(000AC602) TTerminalManager::SetActiveTerminal
(000AB9A3) TTerminalManager::FreeActiveTerminal
(000ABF98) TTerminalManager::ConnectActiveTerminal
(000AC8B5) TTerminalManager::DoSetActiveTerminal
(000AC602) TTerminalManager::SetActiveTerminal
(0002083F) TCustomScpExplorerForm::NeedSession
(00028270) TCustomScpExplorerForm::CMShowingChanged
(000280A7) TCustomScpExplorerForm::Dispatch
(0027AD15) Vcl::Controls::TWinControl::WndProc
(002351DC) Vcl::Forms::TCustomForm::WndProc
(00E43880) Vclcommon::C2992_0

(00C9FA07) TFTPFileSystem::HandleCapabilities
(0008627F) ntdll.dll
(00072C01) ntdll.dll.KiUserExceptionDispatcher
(00C99AF0) TFTPFileSystem::ProcessMessage
(00C99B0D) TFTPFileSystem::DiscardMessages
(00D89ADF) TTerminal::~TTerminal
(000AADAA) TManagedTerminal::~TManagedTerminal
(000AC569) TTerminalManager::FreeTerminal
(000AB9A3) TTerminalManager::FreeActiveTerminal
(000ABF98) TTerminalManager::ConnectActiveTerminal
(000AC8B5) TTerminalManager::DoSetActiveTerminal
(000AC602) TTerminalManager::SetActiveTerminal
%0

The problem happens rarely. I cannot reproduce it.
martin

Re: メモリのアクセス違反 - TFTPFileSystem::HandleCapabilities

komura.takashi.job@... wrote:

WinSCP 5.18.2

Error message:
メモリのアクセス違反

スタック トレース:
(00FB0E46) C5290_3
(00FB2EAE) ____ExceptionHandler
(00FAFC68) __ExceptionHandler
(00CC303F) TFTPFileSystem::HandleCapabilities
(0003EC9E) ntdll.dll.ZwWow64CallFunction64
(0003F42A) ntdll.dll.KiUserExceptionDispatcher
(00CBC7AC) TFTPFileSystem::ProcessMessage
(00CBC7E3) TFTPFileSystem::DiscardMessages
(00CAF4FF) TFTPFileSystem::~TFTPFileSystem
(00DAEBEF) TTerminal::~TTerminal
...

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.
komura.takashi.job@...

メモリのアクセス違反 - TFTPFileSystem::HandleCapabilities

<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 5.18.2

Error message:
メモリのアクセス違反

スタック トレース:
(00CC303F) TFTPFileSystem::HandleCapabilities
(00FB0E46) C5290_3
(00FB2EAE) ____ExceptionHandler
(00FAFC68) __ExceptionHandler
(0003EC9E) ntdll.dll.ZwWow64CallFunction64
(0003F42A) ntdll.dll.KiUserExceptionDispatcher
(00CBC7AC) TFTPFileSystem::ProcessMessage
(00CBC7E3) TFTPFileSystem::DiscardMessages
(00CAF4FF) TFTPFileSystem::~TFTPFileSystem
(00DAEBEF) TTerminal::~TTerminal
(000AEF26) TManagedTerminal::~TManagedTerminal
(000B0719) TTerminalManager::FreeTerminal
(000AFB1F) TTerminalManager::FreeActiveTerminal
(000B0143) TTerminalManager::ConnectActiveTerminal
(000B0A65) TTerminalManager::DoSetActiveTerminal
(000B07B2) TTerminalManager::SetActiveTerminal
(00020CB6) TCustomScpExplorerForm::NeedSession
(00020C2E) TCustomScpExplorerForm::LastTerminalClosed
(000B07B2) TTerminalManager::SetActiveTerminal
(000AFB1F) TTerminalManager::FreeActiveTerminal
(0027FD71) Vcl::Controls::TWinControl::WndProc
(0027F3B8) Vcl::Controls::TWinControl::MainWndProc
(003C73A8) System::Classes::_18201
(00007FFF) USER32.DLL.CallNextHookEx
(0000825C) USER32.DLL
(00010350) USER32.DLL.CallWindowProcW
(0049DE9F) Dragdrop::TDragDrop::WndMethod
(003C73A8) System::Classes::_18201
(00007FFF) USER32.DLL.CallNextHookEx
(0000825C) USER32.DLL
(000097FA) USER32.DLL
(0000986B) USER32.DLL.DispatchMessageW

(00CC303F) TFTPFileSystem::HandleCapabilities

The problem happens rarely. I cannot reproduce it.
komura.takashi.job@...

メモリのアクセス違反 - TFTPFileSystem::HandleCapabilities

<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 5.18.2

Error message:
メモリのアクセス違反

スタック トレース:
(00CC303F) TFTPFileSystem::HandleCapabilities
(00FB0E46) C5290_3
(00FB2EAE) ____ExceptionHandler
(00FAFC68) __ExceptionHandler
(0003EC9E) ntdll.dll.ZwWow64CallFunction64
(0003F42A) ntdll.dll.KiUserExceptionDispatcher
(00CBC7AC) TFTPFileSystem::ProcessMessage
(00CBC7E3) TFTPFileSystem::DiscardMessages
(00CAF4FF) TFTPFileSystem::~TFTPFileSystem
(00DAEBEF) TTerminal::~TTerminal
(000AEF26) TManagedTerminal::~TManagedTerminal
(000B0719) TTerminalManager::FreeTerminal
(000AFB1F) TTerminalManager::FreeActiveTerminal
(000B0143) TTerminalManager::ConnectActiveTerminal
(000B0A65) TTerminalManager::DoSetActiveTerminal
(000B07B2) TTerminalManager::SetActiveTerminal
(00020CB6) TCustomScpExplorerForm::NeedSession
(0002888E) TCustomScpExplorerForm::CMShowingChanged
(000286A7) TCustomScpExplorerForm::Dispatch
(0027FD71) Vcl::Controls::TWinControl::WndProc
(0023A238) Vcl::Forms::TCustomForm::WndProc
(00E6A560) Vclcommon::C2986_0

(00CC303F) TFTPFileSystem::HandleCapabilities
(0003EC9E) ntdll.dll.ZwWow64CallFunction64
(0003F42A) ntdll.dll.KiUserExceptionDispatcher
(00CBC7AC) TFTPFileSystem::ProcessMessage
(00CBC7E3) TFTPFileSystem::DiscardMessages
(00CAF4FF) TFTPFileSystem::~TFTPFileSystem
(00DAEBEF) TTerminal::~TTerminal
(000AEF26) TManagedTerminal::~TManagedTerminal
(000B0719) TTerminalManager::FreeTerminal
(000AFB1F) TTerminalManage

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.
yener.ibrahim@...

Invalid access to memory - TFTPFileSystem::HandleCapabilities

<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 5.15.9

Error message:
Invalid access to memory.

Stack trace:
(007315AB) TFTPFileSystem::HandleCapabilities
(0092812A) C5157_3
(0092A192) ____ExceptionHandler
(00926F4C) __ExceptionHandler
(0005A466) ntdll.dll
(0000F12E) ntdll.dll.KiUserExceptionDispatcher
(0072B804) TFTPFileSystem::ProcessMessage
(0072B821) TFTPFileSystem::DiscardMessages
(00812947) TTerminal::~TTerminal
(000AA3FE) TManagedTerminal::~TManagedTerminal
(000ABAA5) TTerminalManager::FreeTerminal
(000AAF7F) TTerminalManager::FreeActiveTerminal
(000AB538) TTerminalManager::ConnectActiveTerminal
(000ABDB4) TTerminalManager::DoSetActiveTerminal
(000ABB3E) TTerminalManager::SetActiveTerminal
(0001FC81) TCustomScpExplorerForm::NeedSession
(000274E8) TCustomScpExplorerForm::CMShowingChanged
(0002731E) TCustomScpExplorerForm::Dispatch
(00279219) Vcl::Controls::TWinControl::WndProc
(002336E0) Vcl::Forms::TCustomForm::WndProc
(008C6190) Vclcommon::C2842_0

(007315AB) TFTPFileSystem::HandleCapabilities
(0005A466) ntdll.dll
(0000F12E) ntdll.dll.KiUserExceptionDispatcher
(0072B804) TFTPFileSystem::ProcessMessage
(0072B821) TFTPFileSystem::DiscardMessages
(00812947) TTerminal::~TTerminal
(000AA3FE) TManagedTerminal::~TManagedTerminal
(000ABAA5) TTerminalManager::FreeTerminal
(000AAF7F) TTerminalManager::FreeActiveTerminal
(000AB538) TTerminalManager::ConnectActiveTerminal
(000ABDB4) TTerminalManager::DoSetActiveTerminal
(000ABB3E) TTerminalManager::SetActiveTerminal
(0001FC81) TCustomScpExplorerForm::NeedSession
(

The problem happens rarely. I cannot reproduce it.
alexander.haug@...

Zugriffsverletzung - ungültiger Zugriff auf den Speicher - TFTPFileSystem::HandleCapabilities

I tried opening a connection to an SFTP server.

WinSCP 5.13.7

Error message:
Zugriffsverletzung - ungültiger Zugriff auf den Speicher.

Stack trace:
(006D62B7) TFTPFileSystem::HandleCapabilities
(008BF00E) C5105_0
(008C1076) ____ExceptionHandler
(008BDE30) __ExceptionHandler
(00087D6F) ntdll.dll
(00073211) ntdll.dll.KiUserExceptionDispatcher
(006D053C) TFTPFileSystem::ProcessMessage
(006D0559) TFTPFileSystem::DiscardMessages
(007B5A83) TTerminal::~TTerminal
(000952C6) TManagedTerminal::~TManagedTerminal
(000968D4) TTerminalManager::FreeTerminal
(00095E9B) TTerminalManager::FreeActiveTerminal
(0009635C) TTerminalManager::ConnectActiveTerminal
(00096BE0) TTerminalManager::DoSetActiveTerminal
(0009696A) TTerminalManager::SetActiveTerminal
(00095E9B) TTerminalManager::FreeActiveTerminal
(0009635C) TTerminalManager::ConnectActiveTerminal
(00096BE0) TTerminalManager::DoSetActiveTerminal
(0009696A) TTerminalManager::SetActiveTerminal
(00095E9B) TTerminalManager::FreeActiveTerminal
(0009635C) TTerminalManager::ConnectActiveTerminal
(00096BE0) TTerminalManager::DoSetActiveTerminal
(0009696A) TTerminalManager::SetActiveTerminal
(0001C3C9) TCustomScpExplorerForm::NeedSession
(00023F5C) TCustomScpExplorerForm::CMShowingChanged
(00023DC6) TCustomScpExplorerForm::Dispatch
(0025BD51) Vcl::Controls::TWinControl::WndProc
(00216218) Vcl::Forms::TCustomForm::WndProc
(0085D3DC) Vclcommon::C2790_0

(006D62B7) TFTPFileSystem::HandleCapabilities
(00087D6F) ntdll.dll
(00073211) ntdll.dll.KiUserExceptionDispatcher
(006D053C) TFTPFileSystem::ProcessMessage
(006D0559) TFTPFileSystem::DiscardMessages
(007B5A83) TTerminal::~TTerminal
(000952C6) TManagedTerminal::~TManagedTerminal
(000968D4) TTerminalManager::FreeTerminal
(00095E9B) TTerminalManager::FreeActiveTerminal
(0009635C) TTerminalManager::ConnectActiveTerminal
(00096BE0) TTerminalManager::DoSetActiveTerminal
(0009696A) TTerminalManager::SetActiveTerminal
(00095E9B) TTerminalManager::FreeActiveTerminal
(0009635C) TTerminalManager::ConnectActiveTerminal
(00096BE0) TTerminalManager::DoSetActiveTerminal
(0009696A) TTerminalManager::SetActiveTerminal
(00095E9B) TTerminalManager::FreeActiveTerminal
(0009635C) TTerminalManager::ConnectActiveTerminal
(00096BE0) TTerminalManager::DoSetActiveTerminal
(0009696A) TTerminalManager::SetActiveTerminal
(0001C3C9) TCustomScpExplorerForm::NeedSession
(00023F5C) TCustomScpExplorerForm::CMShowingChanged
(00023DC6) TCustomScpExplorerForm::Dispatch
(0025BD51) Vcl::Controls::TWinControl::WndProc
(00216218) Vcl::Forms::TCustomForm::WndProc
(0085D3DC) Vclcommon::C2790_0

(006D62B7) TFTPFileSystem::HandleCapabilities
(008BF00E) C5105_0
(008C1076) ____ExceptionHandler
(008BDE30) __ExceptionHandler
(00087D6F) ntdll.dll
(00073211) ntdll.dll.KiUserExceptionDispatcher
(006D053C) TFTPFileSystem::ProcessMessage
(006D0559) TFTPFileSystem::DiscardMessages
(007B5A83) TTerminal::~TTerminal
(000952C6) TManagedTerminal::~TManagedTerminal
(000968D4) TTerminalManager::FreeTerminal
(00095E9B) TTerminalManager::FreeActiveTerminal
(0009635C) TTerminalManager::ConnectActiveTerminal
(00096BE0) TTerminalManager::DoSetActiveTerminal
(0009696A) TTerminalManager::SetActiveTerminal
(00095E9B) TTerminalManager::FreeActiveTerminal
(0009635C) TTerminalManager::ConnectActiveTerminal
(00096BE0) TTerminalManager::DoSetActiveTerminal
(0009696A) TTerminalManager::SetActiveTerminal
(00095E9B) TTerminalManager::FreeActiveTerminal
(0009635C) TTerminalManager::ConnectActiveTerminal
(00096BE0) TTerminalManager::DoSetActiveTerminal
(0009696A) TTerminalManager::SetActiveTerminal
(0001C3C9) TCustomScpExplorerForm::NeedSession
(00023F5C) TCustomScpExplorerForm::CMShowingChanged
(00023DC6) TCustomScpExplorerForm::Dispatch
(0025BD51) Vcl::Controls::TWinControl::WndProc
(00216218) Vcl::Forms::TCustomForm::WndProc
(0085D3DC) Vclcommon::C2790_0

The problem happens rarely. I cannot reproduce it.
sunflower09t3@...

Invalid access to memory - TFTPFileSystem::HandleCapabilities

<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 5.13.4

Error message:
Invalid access to memory.

Stack trace:
(006D514B) TFTPFileSystem::HandleCapabilities
(008BDC8E) C5104_3
(008BFCF6) ____ExceptionHandler
(008BCAB0) __ExceptionHandler
(0007DAFF) ntdll.dll
(0006B711) ntdll.dll.KiUserExceptionDispatcher
(006CF3D0) TFTPFileSystem::ProcessMessage
(006CF3ED) TFTPFileSystem::DiscardMessages
(007B4913) TTerminal::~TTerminal
(000950CA) TManagedTerminal::~TManagedTerminal
(000966C0) TTerminalManager::FreeTerminal
(00095C9F) TTerminalManager::FreeActiveTerminal
(00096148) TTerminalManager::ConnectActiveTerminal
(000969CC) TTerminalManager::DoSetActiveTerminal
(00096756) TTerminalManager::SetActiveTerminal
(00095C9F) TTerminalManager::FreeActiveTerminal
(00096148) TTerminalManager::ConnectActiveTerminal
(000969CC) TTerminalManager::DoSetActiveTerminal
(00096756) TTerminalManager::SetActiveTerminal
(0001C301) TCustomScpExplorerForm::NeedSession
(00023E60) TCustomScpExplorerForm::CMShowingChanged
(00023CCA) TCustomScpExplorerForm::Dispatch
(0025B9D5) Vcl::Controls::TWinControl::WndProc
(00215E9C) Vcl::Forms::TCustomForm::WndProc
(0085C048) Vclcommon::C2788_0

(006D514B) TFTPFileSystem::HandleCapabilities
(0007DAFF) ntdll.dll
(0006B711) ntdll.dll.KiUserExceptionDispatcher
(006CF3D0) TFTPFileSystem::ProcessMessage
(006CF3ED) TFTPFileSystem::DiscardMessages
(007B4913) TTerminal::~TTerminal
(000950CA) TManagedTerminal::~TManagedTerminal
(000966C0) TTerminalManager::FreeTerminal
(00095C9F) TTerminalManager::FreeActiveTerminal
(00096148) TTerminalManager::ConnectActiveTerminal
(000969CC) TTerminalManager::DoSetActiveTerminal
(00096756) TTerminalManager::SetActiveTerminal
(00095C9F) TTerminalManager::FreeActiveTerminal
(00096148) TTerminalManager::ConnectActiveTerminal
(000969CC) TTerminalManager::DoSetActiveTerminal
(00096756) TTerminalManager::SetActiveTerminal
(0001C301) TCustomScpExplorerForm::NeedSession
(00023E60) TCustomScpExplorerForm::CMShowingChanged
(00023CCA) TCustomScpExplorerForm::Dispatch
(0025B9D5) Vcl::Controls::TWinControl::WndProc
(00215E9C) Vcl::Forms::TCustomForm::WndProc
(0085C048) Vclcommon::C2788_0

(006D514B) TFTPFileSystem::HandleCapabilities
(008BDC8E) C5104_3
(008BFCF6) ____ExceptionHandler
(008BCAB0) __ExceptionHandler
(0007DAFF) ntdll.dll
(0006B711) ntdll.dll.KiUserExceptionDispatcher
(006CF3D0) TFTPFileSystem::ProcessMessage
(006CF3ED) TFTPFileSystem::DiscardMessages
(007B4913) TTerminal::~TTerminal
(000950CA) TManagedTerminal::~TManagedTerminal
(000966C0) TTerminalManager::FreeTerminal
(00095C9F) TTerminalManager::FreeActiveTerminal
(00096148) TTerminalManager::ConnectActiveTerminal
(000969CC) TTerminalManager::DoSetActiveTerminal
(00096756) TTerminalManager::SetActiveTerminal
(00095C9F) TTerminalManager::FreeActiveTerminal
(00096148) TTerminalManager::ConnectActiveTerminal
(000969CC) TTerminalManager::DoSetActiveTerminal
(00096756) TTerminalManager::SetActiveTerminal
(0001C301) TCustomScpExplorerForm::NeedSession
(00023E60) TCustomScpExplorerForm::CMShowingChanged
(00023CCA) TCustomScpExplorerForm::Dispatch
(0025B9D5) Vcl::Controls::TWinControl::WndProc
(00215E9C) Vcl::Forms::TCustomForm::WndProc
(0085C048) Vclcommon::C2788_0

The problem happens rarely. I cannot reproduce it.
jerzyk.majchrzak@...

Naruszenie ochrony pamęci - TFTPFileSystem::HandleCapabilities

<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 5.13.3

Error message:
Naruszenie ochrony pamęci.

Stack trace:
(006D4043) TFTPFileSystem::HandleCapabilities
(008BCA5A) C5104_0
(008BEAC2) ____ExceptionHandler
(008BB87C) __ExceptionHandler
(00085B2F) ntdll.dll
(00073A61) ntdll.dll.KiUserExceptionDispatcher
(006CE2C8) TFTPFileSystem::ProcessMessage
(006CE2E5) TFTPFileSystem::DiscardMessages
(007B377F) TTerminal::~TTerminal
(0009485E) TManagedTerminal::~TManagedTerminal
(00095E78) TTerminalManager::FreeTerminal
(00095433) TTerminalManager::FreeActiveTerminal
(00095900) TTerminalManager::ConnectActiveTerminal
(00096184) TTerminalManager::DoSetActiveTerminal
(00095F0E) TTerminalManager::SetActiveTerminal
(0001C301) TCustomScpExplorerForm::NeedSession
(0001C2A6) TCustomScpExplorerForm::LastTerminalClosed
(00095F0E) TTerminalManager::SetActiveTerminal
(00095433) TTerminalManager::FreeActiveTerminal
(00095900) TTerminalManager::ConnectActiveTerminal
(00096184) TTerminalManager::DoSetActiveTerminal
(00095F0E) TTerminalManager::SetActiveTerminal
(0001C301) TCustomScpExplorerForm::NeedSession
(0001C2A6) TCustomScpExplorerForm::LastTerminalClosed
(00095F0E) TTerminalManager::SetActiveTerminal
(00095433) TTerminalManager::FreeActiveTerminal
(00095900) TTerminalManager::ConnectActiveTerminal
(00096184) TTerminalManager::DoSetActiveTerminal
(00095F0E) TTerminalManager::SetActiveTerminal
(0001C301) TCustomScpExplorerForm::NeedSession
(0001C2A6) TCustomScpExplorerForm::LastTerminalClosed
(00095F0E) TTerminalManager::SetActiveTerminal
(00095433) TTerminalManager::F

The problem happens rarely. I cannot reproduce it.
dsmith@...

Invalid access to memory - TFTPFileSystem::HandleCapabilities

<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 5.11.2

Error message:
Invalid access to memory.

Stack trace:
(006C8EE7) TFTPFileSystem::HandleCapabilities
(0089C9C2) C5067_3
(0089EA2A) ____ExceptionHandler
(0089B7E4) __ExceptionHandler
(0005A60A) ntdll.dll
(0000F12E) ntdll.dll.KiUserExceptionDispatcher
(006C2D1C) TFTPFileSystem::ProcessMessage
(006C2D39) TFTPFileSystem::DiscardMessages
(00794DAF) TTerminal::~TTerminal
(000924EA) TManagedTerminal::~TManagedTerminal
(00093A50) TTerminalManager::FreeTerminal
(000930BF) TTerminalManager::FreeActiveTerminal
(000934D8) TTerminalManager::ConnectActiveTerminal
(00093D5C) TTerminalManager::DoSetActiveTerminal
(00093AE6) TTerminalManager::SetActiveTerminal
(0001BF79) TCustomScpExplorerForm::NeedSession
(000233C8) TCustomScpExplorerForm::CMShowingChanged
(00023232) TCustomScpExplorerForm::Dispatch
(00257C85) Vcl::Controls::TWinControl::WndProc
(0021214C) Vcl::Forms::TCustomForm::WndProc
(0083BA40) Vclcommon::C2751_0

(006C8EE7) TFTPFileSystem::HandleCapabilities
(0005A60A) ntdll.dll
(0000F12E) ntdll.dll.KiUserExceptionDispatcher
(006C2D1C) TFTPFileSystem::ProcessMessage
(006C2D39) TFTPFileSystem::DiscardMessages
(00794DAF) TTerminal::~TTerminal
(000924EA) TManagedTerminal::~TManagedTerminal
(00093A50) TTerminalManager::FreeTerminal
(000930BF) TTerminalManager::FreeActiveTerminal
(000934D8) TTerminalManager::ConnectActiveTerminal
(00093D5C) TTerminalManager::DoSetActiveTerminal
(00093AE6) TTerminalManager::SetActiveTerminal
(0001BF79) TCustomScpExplorerForm::NeedSession
(

The problem happens rarely. I cannot reproduce it.
denisfi@...

Acesso inválido à memória - TFTPFileSystem::HandleCapabilities

<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 5.11.2

Error message:
Acesso inválido à memória

Rastreamento de pilha:
(006C8EE7) TFTPFileSystem::HandleCapabilities
(0089C9C2) C5067_3
(0089EA2A) ____ExceptionHandler
(0089B7E4) __ExceptionHandler
(0003EF0E) ntdll.dll.ZwWow64CallFunction64
(0003F68A) ntdll.dll.KiUserExceptionDispatcher
(006C2D1C) TFTPFileSystem::ProcessMessage
(006C2D39) TFTPFileSystem::DiscardMessages
(00794DAF) TTerminal::~TTerminal
(000924EA) TManagedTerminal::~TManagedTerminal
(00093A50) TTerminalManager::FreeTerminal
(000930BF) TTerminalManager::FreeActiveTerminal
(000934D8) TTerminalManager::ConnectActiveTerminal
(00093D5C) TTerminalManager::DoSetActiveTerminal
(00093AE6) TTerminalManager::SetActiveTerminal
(0001BF79) TCustomScpExplorerForm::NeedSession
(000233C8) TCustomScpExplorerForm::CMShowingChanged
(00023232) TCustomScpExplorerForm::Dispatch
(00257C85) Vcl::Controls::TWinControl::WndProc
(0021214C) Vcl::Forms::TCustomForm::WndProc
(0083BA40) Vclcommon::C2751_0

(006C8EE7) TFTPFileSystem::HandleCapabilities
(0003EF0E) ntdll.dll.ZwWow64CallFunction64
(0003F68A) ntdll.dll.KiUserExceptionDispatcher
(006C2D1C) TFTPFileSystem::ProcessMessage
(006C2D39) TFTPFileSystem::DiscardMessages
(00794DAF) TTerminal::~TTerminal
(000924EA) TManagedTerminal::~TManagedTerminal
(00093A50) TTerminalManager::FreeTerminal
(000930BF) TTerminalManager::FreeActiveTerminal
(000934D8) TTerminalManager::ConnectActiveTerminal
(00093D5C) TTerminalManager::DoSetActiveTerminal
(00093AE6) TTerminalManager::SetActiveTerminal

The problem happens rarely. I cannot reproduce it.
rewpoke@...

Invalid access to memory - TFTPFileSystem::HandleCapabilities

<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 5.9.6

Error message:
Invalid access to memory.

Stack trace:
(006B0C03) TFTPFileSystem::HandleCapabilities
(000851CF) ntdll.dll
(00073161) ntdll.dll.KiUserExceptionDispatcher
(006AAB08) TFTPFileSystem::ProcessMessage
(006AAB25) TFTPFileSystem::DiscardMessages
(007705D3) TTerminal::~TTerminal
(0008AA26) TManagedTerminal::~TManagedTerminal
(0008BE7C) TTerminalManager::FreeTerminal
(0008B54B) TTerminalManager::FreeActiveTerminal
(0008B904) TTerminalManager::ConnectActiveTerminal
(0008C1B5) TTerminalManager::DoSetActiveTerminal
(0008BF12) TTerminalManager::SetActiveTerminal
(0001BA3B) TCustomScpExplorerForm::NeedSession
(00022E38) TCustomScpExplorerForm::CMShowingChanged
(00022CE7) TCustomScpExplorerForm::Dispatch
(0024F5A1) Vcl::Controls::TWinControl::WndProc
(00209A50) Vcl::Forms::TCustomForm::WndProc
(0080DD85) Vclcommon::C2758_0
(0024A698) Vcl::Controls::TControl::Perform
(0024E991) Vcl::Controls::TWinControl::UpdateShowing
(0024EAA0) Vcl::Controls::TWinControl::UpdateControlState
(00251646) Vcl::Controls::TWinControl::CMVisibleChanged
(0024F5A1) Vcl::Controls::TWinControl::WndProc
(00209A50) Vcl::Forms::TCustomForm::WndProc
(0080DEAC) Vclcommon::C2758_0
(0024A698) Vcl::Controls::TControl::Perform
(00249026) Vcl::Controls::TControl::SetVisible
(000D7FC3) Execute
(000024A8) wWinMain
(008669E1) __wstartup
(0006482B) ntdll.dll.RtlGetAppContainerNamedObjectPath
(000647F8) ntdll.dll.RtlGetAppContainerNamedObjectPath

(006B0C03) TFTPFil

The problem happens rarely. I cannot reproduce it.
danwolf80@...

Invalid access to memory - TFTPFileSystem::HandleCapabilities

<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 5.9.3

Error message:
Invalid access to memory.

Stack trace:
(006AED4F) TFTPFileSystem::HandleCapabilities
(00866422) C5073_3
(0086848A) ____ExceptionHandler
(00865244) __ExceptionHandler
(00081D3F) ntdll.dll
(0006F8EA) ntdll.dll.KiUserExceptionDispatcher
(006A8C54) TFTPFileSystem::ProcessMessage
(006A8C71) TFTPFileSystem::DiscardMessages
(0076E6F3) TTerminal::~TTerminal
(0008A65E) TManagedTerminal::~TManagedTerminal
(0008BAB4) TTerminalManager::FreeTerminal
(0008B183) TTerminalManager::FreeActiveTerminal
(0008B85E) TTerminalManager::ReconnectActiveTerminal
(00099A2B) ShowExtendedExceptionEx
(0001CD5C) TCustomScpExplorerForm::ShowExtendedException
(0008CEA1) TTerminalManager::TerminalShowExtendedException
(00772B78) TTerminal::ShowExtendedException
(0021306E) Vcl::Forms::TApplication::HandleException
(00373100) System::Classes::_18201
(0002C2B1) USER32.dll
(0000D885) USER32.dll
(0000D1DF) USER32.dll
(0000CF9B) USER32.dll.DispatchMessageW

(00866A8D) C5073_3
(00868067) _ReThrowException
(0008B883) TTerminalManager::ReconnectActiveTerminal
(00099A2B) ShowExtendedExceptionEx
(0001CD5C) TCustomScpExplorerForm::ShowExtendedException
(0008CEA1) TTerminalManager::TerminalShowExtendedException
(00772B78) TTerminal::ShowExtendedException
(0021306E) Vcl::Forms::TApplication::HandleException
(00373100) System::Classes::_18201
(0002C2B1) USER32.dll
(0000D885) USER32.dll
(0000D1DF) USER32.dll
(0000CF9B) USER32.dll.DispatchMessageW

The problem happens rarely. I cannot reproduce it.
cbrownwowyv@...

Invalid access to memory - TFTPFileSystem::HandleCapabilities

I was accessing the remote server with WinSCP and initiated the OpenVPN GUI at the same time.

WinSCP 5.9.2

Error message:
Invalid access to memory.

Stack trace:
(006ACE97) TFTPFileSystem::HandleCapabilities
(0008137F) ntdll.dll
(0006EF1A) ntdll.dll.KiUserExceptionDispatcher
(006A6D9C) TFTPFileSystem::ProcessMessage
(006A6DB9) TFTPFileSystem::DiscardMessages
(0076C22F) TTerminal::~TTerminal
(0008A4C6) TManagedTerminal::~TManagedTerminal
(0008B860) TTerminalManager::FreeTerminal
(0008AF2F) TTerminalManager::FreeActiveTerminal
(0008B2E8) TTerminalManager::ConnectActiveTerminal
(0008BB99) TTerminalManager::DoSetActiveTerminal
(0008B8F6) TTerminalManager::SetActiveTerminal
(0001B7FB) TCustomScpExplorerForm::NeedSession
(00022AF8) TCustomScpExplorerForm::CMShowingChanged
(00022A14) TCustomScpExplorerForm::Dispatch
(0024EC29) Vcl::Controls::TWinControl::WndProc
(002090D8) Vcl::Forms::TCustomForm::WndProc
(008093C5) Vclcommon::C2754_0
(00249D20) Vcl::Controls::TControl::Perform
(0024E019) Vcl::Controls::TWinControl::UpdateShowing
(0024E128) Vcl::Controls::TWinControl::UpdateControlState
(00250CCE) Vcl::Controls::TWinControl::CMVisibleChanged
(0024EC29) Vcl::Controls::TWinControl::WndProc
(002090D8) Vcl::Forms::TCustomForm::WndProc
(008094EC) Vclcommon::C2754_0
(00249D20) Vcl::Controls::TControl::Perform
(002486AE) Vcl::Controls::TControl::SetVisible
(000D764B) Execute
(000024A8) wWinMain
(0086187D) C4941_0
(0005F607) ntdll.dll
(0005F5CF) ntdll.dll

(006ACE97) TFTPFileSystem::HandleCapabilities
(00863846) C5073_3
(0

The problem happens rarely. I cannot reproduce it.
martin

Re: Invalid access to memory

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

Invalid access to memory

<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 5.7.1

Error message:
Invalid access to memory.

Stack trace:
[018FDFDF] TFTPFileSystem::HandleCapabilities
[01A81962] C4799_0
[01A839CA] ____ExceptionHandler
[01A80944] __ExceptionHandler
[777965C6] ntdll.dll.RtlRaiseStatus
[77796452] ntdll.dll.KiUserExceptionDispatcher
[018F8638] TFTPFileSystem::ProcessMessage
[018F8655] TFTPFileSystem::DiscardMessages
[019A950F] TTerminal::~TTerminal
[01315F16] TManagedTerminal::~TManagedTerminal
[0131725C] TTerminalManager::FreeTerminal
[013168BF] TTerminalManager::FreeActiveTerminal
[01316CE4] TTerminalManager::ConnectActiveTerminal
[013175BF] TTerminalManager::DoSetActiveTerminal
[01317312] TTerminalManager::SetActiveTerminal
[012A3462] wWinMain
[01A7FAB9] __wstartup
[777AB3F3] ntdll.dll
[777AB3C3] ntdll.dll

Have VMware player running and a VPN.
martin

Re: Invalid access to memory

Thanks for your report.
I have sent you an email with a debug version of WinSCP to address you have used to register on this forum.
akash9958@...

Invalid access to memory

<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 5.6.3

Error message:
Invalid access to memory.

Stack trace:
[01878D93] TFTPFileSystem::HandleCapabilities
[019F6B82] C4727_3
[019F8BEA] ____ExceptionHandler
[019F5B64] __ExceptionHandler
[7798F08E] ntdll.dll
[7798EEF6] ntdll.dll.KiUserExceptionDispatcher
[01873A28] TFTPFileSystem::ProcessMessage
[01873A45] TFTPFileSystem::DiscardMessages
[0191F9EB] TTerminal::~TTerminal
[012953C5] TManagedTerminal::~TManagedTerminal
[012966D8] TTerminalManager::FreeTerminal
[01295D6F] TTerminalManager::FreeActiveTerminal
[01296482] TTerminalManager::ReconnectActiveTerminal
[012A35C2] ShowExtendedExceptionEx
[0123B580] TCustomScpExplorerForm::ShowExtendedException
[01297BB9] TTerminalManager::TerminalShowExtendedException
[01923800] TTerminal::ShowExtendedException
[0155F9BC] System::Classes::_18201
[77327831] USER32.DLL.CallNextHookEx
[77327A95] USER32.DLL
[77329889] USER32.DLL
[773298EC] USER32.DLL.DispatchMessageW

[019F71ED] C4727_3
[019F87C7] _ReThrowException
[012964A7] TTerminalManager::ReconnectActiveTerminal
[012A35C2] ShowExtendedExceptionEx
[0123B580] TCustomScpExplorerForm::ShowExtendedException
[01297BB9] TTerminalManager::TerminalShowExtendedException
[01923800] TTerminal::ShowExtendedException
[0155F9BC] System::Classes::_18201
[77327831] USER32.DLL.CallNextHookEx
[77327A95] USER32.DLL
[77329889] USER32.DLL
[773298EC] USER32.DLL.DispatchMessageW

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