Invalid access to memory - TDownloadQueueItem::TDownloadQueueItem

<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 5.7.3

Error message:
Invalid access to memory.

Stack trace:
(007E171E) __DynamicCastVCLptr
(0003F07E) ntdll.dll.ZwWow64CallFunction64
(0003F7FA) ntdll.dll.KiUserExceptionDispatcher
(006725F3) TDownloadQueueItem::TDownloadQueueItem
(00007153) TCustomScpExplorerForm::AddQueueItem
(0000C575) TCustomScpExplorerForm::ExecuteFileOperation
(0000CFA8) TCustomScpExplorerForm::ExecuteFileOperation
(0000D02F) TCustomScpExplorerForm::ExecuteFileOperationCommand
(0003207D) TNonVisualDataModule::ExplorerActionsExecute
(00381EE0) System::Actions::TContainedActionList::ExecuteAction
(00169A41) Vcl::Actnlist::TCustomAction::Execute

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 5.7.3

Error message:
Chyba přístupu do paměti.

Stack trace:
(007E171E) __DynamicCastVCLptr
(0005A5DA) ntdll.dll
(0000F12E) ntdll.dll.KiUserExceptionDispatcher
(006725F3) TDownloadQueueItem::TDownloadQueueItem
(00007153) TCustomScpExplorerForm::AddQueueItem
(0000C575) TCustomScpExplorerForm::ExecuteFileOperation
(0000CFA8) TCustomScpExplorerForm::ExecuteFileOperation
(0000D02F) TCustomScpExplorerForm::ExecuteFileOperationCommand
(0003207D) TNonVisualDataModule::ExplorerActionsExecute
(00381EE0) System::Actions::TContainedActionList::ExecuteAction
(00169A41) Vcl::Actnlist::TCustomAction::Execute

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 5.7.6


Копировал из SCP-папки на локаль много больших файлов, был разрыв связи, после я продолжил копирование, потом я вышел из учетной записи (Win+L) потом снова зашел. Потом то ли уже было копирование в фоне и снова окошко с копированием появилось, то ли копирования не было в фоне и я нажал кнопку (что-то типа) "Копировать в фоне" и получил эту ошибку!

Error message:
Ошибка доступа к памяти.

Трассировка стека:
(007E4136) __DynamicCastVCLptr
(0008A52F) ntdll.dll
(00077DAA) ntdll.dll.KiUserExceptionDispatcher
(00673F97) TDownloadQueueItem::TDownloadQueueItem
(0000715B) TCustomScpExplorerForm::AddQueueItem
(0000C57D) TCustomScpExplorerForm::ExecuteFileOperation
(0000CFB0) TCustomScpExplorerForm::ExecuteFileOperation
(0000D037) TCustomScpExplorerForm::ExecuteFileOperationCommand
(0003212D) TNonVisualDataModule::ExplorerActionsExecute
(00382320) System::Actions::TContainedActionList::ExecuteAction
(00169E61) Vcl::Actnlist::TCustomAction::Execute

The problem happens rarely. I cannot reproduce it.

I am downloading large file in the background with limit set to 7MBps and when I wanted to sent to background second task in the foreground with limit set to 2MBps, this error happened.


<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 5.8

Error message:
Invalid access to memory.

Stack trace:
(0081A2AE) __DynamicCastVCLptr
(0003F04E) ntdll.dll.ZwWow64CallFunction64
(0003F7CA) ntdll.dll.KiUserExceptionDispatcher
(006925FB) TDownloadQueueItem::TDownloadQueueItem
(000071F3) TCustomScpExplorerForm::AddQueueItem
(0000C670) TCustomScpExplorerForm::ExecuteFileOperation
(0000D0F4) TCustomScpExplorerForm::ExecuteFileOperation
(0000D17B) TCustomScpExplorerForm::ExecuteFileOperationCommand
(00033EB6) TNonVisualDataModule::ExplorerActionsExecute
(003940BC) System::Actions::TContainedActionList::ExecuteAction
(0017B2E1) Vcl::Actnlist::TCustomAction::Execute

The problem happens rarely. I cannot reproduce it.

Hi, I got this message when I was trying to switch tasks to the background <invalid hyperlink removed by admin>. Hope that helps.

WinSCP 5.7.6

Error message:
Ошибка доступа к памяти.

Трассировка стека:
(007E4136) __DynamicCastVCLptr
(0008A52F) ntdll.dll
(00077DAA) ntdll.dll.KiUserExceptionDispatcher
(00673F97) TDownloadQueueItem::TDownloadQueueItem
(0000715B) TCustomScpExplorerForm::AddQueueItem
(0000C57D) TCustomScpExplorerForm::ExecuteFileOperation
(0000CFB0) TCustomScpExplorerForm::ExecuteFileOperation
(0000D037) TCustomScpExplorerForm::ExecuteFileOperationCommand
(0003229E) TNonVisualDataModule::ExplorerActionsExecute
(00382320) System::Actions::TContainedActionList::ExecuteAction
(00169E61) Vcl::Actnlist::TCustomAction::Execute
(003402A8) System::Classes::_18201
(000374F1) USER32.dll
(00015C3B) USER32.dll
(0001553C) USER32.dll
(000152FB) USER32.dll.DispatchMessageW

The problem happens rarely. I cannot reproduce it.

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

WinSCP 5.7.7

Error message:
Naruszenie ochrony pamęci.

Stack trace:
(007E0326) __DynamicCastVCLptr
(0008A61F) ntdll.dll
(00077E7A) ntdll.dll.KiUserExceptionDispatcher
(00674AE7) TDownloadQueueItem::TDownloadQueueItem
(0000715B) TCustomScpExplorerForm::AddQueueItem
(0000C57D) TCustomScpExplorerForm::ExecuteFileOperation
(0000CFB0) TCustomScpExplorerForm::ExecuteFileOperation
(0000D037) TCustomScpExplorerForm::ExecuteFileOperationCommand
(0003212D) TNonVisualDataModule::ExplorerActionsExecute
(00382614) System::Actions::TContainedActionList::ExecuteAction
(0016A155) Vcl::Actnlist::TCustomAction::Execute

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 5.7.7

Error message:
Zugriffsverletzung - ungültiger Zugriff auf den Speicher.

Stack trace:
(007E0326) __DynamicCastVCLptr
(0008A61F) ntdll.dll
(00077E7A) ntdll.dll.KiUserExceptionDispatcher
(00674AE7) TDownloadQueueItem::TDownloadQueueItem
(0000715B) TCustomScpExplorerForm::AddQueueItem
(0000C57D) TCustomScpExplorerForm::ExecuteFileOperation
(0000CFB0) TCustomScpExplorerForm::ExecuteFileOperation
(0000D037) TCustomScpExplorerForm::ExecuteFileOperationCommand
(0003229E) TNonVisualDataModule::ExplorerActionsExecute
(00382614) System::Actions::TContainedActionList::ExecuteAction
(0016A155) Vcl::Actnlist::TCustomAction::Execute
(0034059C) System::Classes::_18201
(000374F1) USER32.dll
(00015C3B) USER32.dll
(0001553C) USER32.dll
(000152FB) USER32.dll.DispatchMessageW

The problem happens rarely. I cannot reproduce it.

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

WinSCP 5.7.7

Error message:
Invalid access to memory.

Stack trace:
(007E0326) __DynamicCastVCLptr
(00062496) ntdll.dll
(0000F13E) ntdll.dll.KiUserExceptionDispatcher
(00674AE7) TDownloadQueueItem::TDownloadQueueItem
(0000715B) TCustomScpExplorerForm::AddQueueItem
(0000C57D) TCustomScpExplorerForm::ExecuteFileOperation
(0000CFB0) TCustomScpExplorerForm::ExecuteFileOperation
(0001B603) TCustomScpExplorerForm::RemoteFileControlFileOperation
(0001B8EA) TCustomScpExplorerForm::RemoteFileControlDDEnd
(003DA7C6) Customdirview::TCustomDirView::DDDragDetect
(00615DA6) TUnixDirView::DDDragDetect
(003D6CAC) Customdirview::TCustomDirView::CNNotify
(00217AC5) Vcl::Controls::TControl::WndProc
(0021C609) Vcl::Controls::TWinControl::WndProc
(00260537) Vcl::Comctrls::TCustomListView::WndProc
(0021C76F) Vcl::Controls::_17076
(0021C609) Vcl::Controls::TWinControl::WndProc
(0021BC50) Vcl::Controls::TWinControl::MainWndProc
(0034059C) System::Classes::_18201
(000152F7) USER32.dll
(00015D35) USER32.dll
(00015DE8) USER32.dll
(00015E49) USER32.dll
(0000F117) ntdll.dll.KiUserCallbackDispatcher
(000186D0) USER32.dll.SendMessageW
(0002B06D) COMCTL32.DLL
(000D0845) COMCTL32.DLL
(000A207A) COMCTL32.DLL
(000A10E2) COMCTL32.DLL
(0002EE7B) COMCTL32.DLL
(000152F7) USER32.dll
(00015D35) USER32.dll
(0001FD32) USER32.dll
(0001FD58) USER32.dll.CallWindowProcW
(0021C71A) Vcl::Controls::TWinControl::DefaultHandler
(003D81F6) Customdirview::TCustomDirView::WMLButtonDown
(0021C609)

The problem happens rarely. I cannot reproduce it.

I clicked the continue in background button, possibly connection timed out at the same time? not really sure sorry.

WinSCP 5.7.5

Error message:
Invalid access to memory.

Stack trace:
(007E3466) __DynamicCastVCLptr
(0008A61F) ntdll.dll
(00077E7A) ntdll.dll.KiUserExceptionDispatcher
(006734E7) TDownloadQueueItem::TDownloadQueueItem
(00007153) TCustomScpExplorerForm::AddQueueItem
(0000C575) TCustomScpExplorerForm::ExecuteFileOperation
(0000CFA8) TCustomScpExplorerForm::ExecuteFileOperation
(0000D02F) TCustomScpExplorerForm::ExecuteFileOperationCommand
(0003228A) TNonVisualDataModule::ExplorerActionsExecute
(003822E4) System::Actions::TContainedActionList::ExecuteAction
(00169E45) Vcl::Actnlist::TCustomAction::Execute
(0034021C) System::Classes::_18201
(000374F1) USER32.dll
(00015C3B) USER32.dll
(0001553C) USER32.dll
(000152FB) USER32.dll.DispatchMessageW

The problem happens rarely. I cannot reproduce it.

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

WinSCP 5.7.7

Error message:
Acceso a memoria no válido

Traza de la pila:
(007E0326) __DynamicCastVCLptr
(00062496) ntdll.dll
(0000F13E) ntdll.dll.KiUserExceptionDispatcher
(00674AE7) TDownloadQueueItem::TDownloadQueueItem
(0000715B) TCustomScpExplorerForm::AddQueueItem
(0000C57D) TCustomScpExplorerForm::ExecuteFileOperation
(0000CFB0) TCustomScpExplorerForm::ExecuteFileOperation
(0000D037) TCustomScpExplorerForm::ExecuteFileOperationCommand
(0003229E) TNonVisualDataModule::ExplorerActionsExecute
(00382614) System::Actions::TContainedActionList::ExecuteAction
(0016A155) Vcl::Actnlist::TCustomAction::Execute
(0034059C) System::Classes::_18201
(000152F7) USER32.dll
(00015D35) USER32.dll
(000167CE) USER32.dll
(00016895) USER32.dll.DispatchMessageW

The problem happens rarely. I cannot reproduce it.

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

I've tried to minimize window moving files from distant server to my computer. Process of moving ended immediatyely.


WinSCP 5.7.7

Error message:
Chyba přístupu do paměti.

Stack trace:
(007E032D) __DynamicCastVCLptr
(0003EE3E) ntdll.dll.ZwWow64CallFunction64
(0003F5BA) ntdll.dll.KiUserExceptionDispatcher
(00674AE7) TDownloadQueueItem::TDownloadQueueItem
(0000715B) TCustomScpExplorerForm::AddQueueItem
(0000C57D) TCustomScpExplorerForm::ExecuteFileOperation
(0000CFB0) TCustomScpExplorerForm::ExecuteFileOperation
(0000D037) TCustomScpExplorerForm::ExecuteFileOperationCommand
(0003212D) TNonVisualDataModule::ExplorerActionsExecute
(00382614) System::Actions::TContainedActionList::ExecuteAction
(0016A155) Vcl::Actnlist::TCustomAction::Execute

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 5.9.1

Error message:
Invalid access to memory.

Stack trace:
(008621B2) __DynamicCastVCLptr
(0003EE3E) ntdll.dll.ZwWow64CallFunction64
(0003F5BA) ntdll.dll.KiUserExceptionDispatcher
(006C5107) TDownloadQueueItem::TDownloadQueueItem
(00007717) TCustomScpExplorerForm::AddQueueItem
(0000E060) TCustomScpExplorerForm::ExecuteFileOperation
(0000EAE4) TCustomScpExplorerForm::ExecuteFileOperation
(0001D803) TCustomScpExplorerForm::RemoteFileControlFileOperation
(0001DB60) TCustomScpExplorerForm::RemoteFileControlDDEnd
(004088A2) Customdirview::TCustomDirView::DDDragDetect
(00654862) TUnixDirView::DDDragDetect
(00404D54) Customdirview::TCustomDirView::CNNotify
(00249F15) Vcl::Controls::TControl::WndProc
(0024EA59) Vcl::Controls::TWinControl::WndProc
(00292987) Vcl::Comctrls::TCustomListView::WndProc
(0024EBBF) Vcl::Controls::_17076
(0024EA59) Vcl::Controls::TWinControl::WndProc
(0024E0A0) Vcl::Controls::TWinControl::MainWndProc
(00372990) System::Classes::_18201
(00007E6F) USER32.DLL.CallNextHookEx
(000080CC) USER32.DLL
(0000832E) USER32.DLL
(00008527) USER32.DLL
(0003F594) ntdll.dll.KiUserCallbackDispatcher
(00011B34) USER32.DLL.SendMessageW
(0002CBDB) COMCTL32.DLL
(0011AEED) COMCTL32.DLL
(0009F644) COMCTL32.DLL
(00029BAA) COMCTL32.DLL
(00007E6F) USER32.DLL.CallNextHookEx
(000080CC) USER32.DLL
(0000C6C0) USER32.DLL.CallWindowProcW
(0024EB6A) Vcl::Controls::TWinControl::DefaultHandler
(004065A8) Customdirview::TCustomDirView::WMRButtonDown
(0024EA59) Vcl::Contro

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.

While transferring files, I clicked "proceed in background." This was the first time I ever used this option, and I just wanted to see what it did. I got the error below and my transfer stopped.

<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

Error message:
Invalid access to memory.

Stack trace:
(00861BEA) __DynamicCastVCLptr
(0005A5DA) ntdll.dll
(0000F12E) ntdll.dll.KiUserExceptionDispatcher
(006C4B4B) TDownloadQueueItem::TDownloadQueueItem
(000076D7) TCustomScpExplorerForm::AddQueueItem
(0000DF60) TCustomScpExplorerForm::ExecuteFileOperation
(0000E9E4) TCustomScpExplorerForm::ExecuteFileOperation
(0000EA6B) TCustomScpExplorerForm::ExecuteFileOperationCommand
(00037406) TNonVisualDataModule::ExplorerActionsExecute
(003B4768) System::Actions::TContainedActionList::ExecuteAction
(0019B96D) Vcl::Actnlist::TCustomAction::Execute
(0037264C) System::Classes::_18201
(000152F7) USER32.dll
(00015D35) USER32.dll
(000167BF) USER32.dll
(00016885) USER32.dll.DispatchMessageW

The problem happens rarely. I cannot reproduce it.

Get this error quite regularly when drag-drop with shift button pressed and then clicking on 'Proceed in Background' button


<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 5.9.1

Error message:
Invalid access to memory.

Stack trace:
(008621B2) __DynamicCastVCLptr
(0008A61F) ntdll.dll
(00077E7A) ntdll.dll.KiUserExceptionDispatcher
(006C5107) TDownloadQueueItem::TDownloadQueueItem
(00007717) TCustomScpExplorerForm::AddQueueItem
(0000E060) TCustomScpExplorerForm::ExecuteFileOperation
(0000EAE4) TCustomScpExplorerForm::ExecuteFileOperation
(0001D803) TCustomScpExplorerForm::RemoteFileControlFileOperation
(0001DB60) TCustomScpExplorerForm::RemoteFileControlDDEnd
(004088A2) Customdirview::TCustomDirView::DDDragDetect
(00654862) TUnixDirView::DDDragDetect
(00404D04) Customdirview::TCustomDirView::CNNotify
(00249F15) Vcl::Controls::TControl::WndProc
(0024EA59) Vcl::Controls::TWinControl::WndProc
(00292987) Vcl::Comctrls::TCustomListView::WndProc
(0024EBBF) Vcl::Controls::_17076
(0024EA59) Vcl::Controls::TWinControl::WndProc
(0024E0A0) Vcl::Controls::TWinControl::MainWndProc
(00372990) System::Classes::_18201
(000374F1) USER32.dll
(00015C3B) USER32.dll
(0001581B) USER32.dll
(0001C167) USER32.dll
(00077E54) ntdll.dll.KiUserCallbackDispatcher
(00014EDE) USER32.dll.SendMessageW
(0007DBD8) COMCTL32.DLL
(0019E551) COMCTL32.DLL
(000BBFAE) COMCTL32.DLL
(00076EEA) COMCTL32.DLL
(000374F1) USER32.dll
(00015C3B) USER32.dll
(000159D2) USER32.dll.CallWindowProcW
(0024EB6A) Vcl::Controls::TWinControl::DefaultHandler
(00406562) Customdirview::TCustomDirView::WMLButtonDown
(0024EA59) Vcl::Controls::TWinControl::WndProc
(00292987)

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.

<F6> to transfer and when it starts then click on Proceed in Background leads to this error

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

WinSCP 5.9.3

Error message:
Invalid access to memory.

Stack trace:
(0092CBAA) __DynamicCastVCLptr
(0008A61F) ntdll.dll
(00077E7A) ntdll.dll.KiUserExceptionDispatcher
(0077D5E3) TDownloadQueueItem::TDownloadQueueItem
(0000A4D5) TCustomScpExplorerForm::AddQueueItem
(000114CF) TCustomScpExplorerForm::ExecuteFileOperation
(000120A7) TCustomScpExplorerForm::ExecuteFileOperation
(00012175) TCustomScpExplorerForm::ExecuteFileOperationCommand
(000464FF) TNonVisualDataModule::ExplorerActionsExecute
(004215B8) System::Actions::TContainedActionList::ExecuteAction
(002087D1) Vcl::Actnlist::TCustomAction::Execute

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.

This bug has been added to the tracker:
https://winscp.net/tracker/1462

<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 5.9.4

Error message:
Ongeldige toegang tot geheugen.

Stack trace:
(008665DA) __DynamicCastVCLptr
(000624F6) ntdll.dll
(0000F13E) ntdll.dll.KiUserExceptionDispatcher
(006C7FDF) TDownloadQueueItem::TDownloadQueueItem
(00007717) TCustomScpExplorerForm::AddQueueItem
(0000DFAA) TCustomScpExplorerForm::ExecuteFileOperation
(0000EAB8) TCustomScpExplorerForm::ExecuteFileOperation
(0000EB3F) TCustomScpExplorerForm::ExecuteFileOperationCommand
(0003763A) TNonVisualDataModule::ExplorerActionsExecute
(003B5348) System::Actions::TContainedActionList::ExecuteAction
(0019C4C1) Vcl::Actnlist::TCustomAction::Execute

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 5.9.4

Error message:
Ongeldige toegang tot geheugen.

Stack trace:
(008665DA) __DynamicCastVCLptr
(000624F6) ntdll.dll
(0000F13E) ntdll.dll.KiUserExceptionDispatcher
(006C7FDF) TDownloadQueueItem::TDownloadQueueItem
(00007717) TCustomScpExplorerForm::AddQueueItem
(0000DFAA) TCustomScpExplorerForm::ExecuteFileOperation
(0000EAB8) TCustomScpExplorerForm::ExecuteFileOperation
(0000EB3F) TCustomScpExplorerForm::ExecuteFileOperationCommand
(0003763A) TNonVisualDataModule::ExplorerActionsExecute
(003B5348) System::Actions::TContainedActionList::ExecuteAction
(0019C4C1) Vcl::Actnlist::TCustomAction::Execute

[img][/img]

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 5.9.4

Error message:
Chyba přístupu do paměti.

Stack trace:
(008665DA) __DynamicCastVCLptr
(000624F6) ntdll.dll
(0000F13E) ntdll.dll.KiUserExceptionDispatcher
(006C7FDF) TDownloadQueueItem::TDownloadQueueItem
(00007717) TCustomScpExplorerForm::AddQueueItem
(0000DFAA) TCustomScpExplorerForm::ExecuteFileOperation
(0000EAB8) TCustomScpExplorerForm::ExecuteFileOperation
(0001D87F) TCustomScpExplorerForm::RemoteFileControlFileOperation
(0001DBDC) TCustomScpExplorerForm::RemoteFileControlDDEnd
(00409222) Customdirview::TCustomDirView::DDDragDetect
(006563C2) TUnixDirView::DDDragDetect
(00405684) Customdirview::TCustomDirView::CNNotify
(0024A725) Vcl::Controls::TControl::WndProc
(0024F269) Vcl::Controls::TWinControl::WndProc
(00293197) Vcl::Comctrls::TCustomListView::WndProc
(0024F3CF) Vcl::Controls::_17076
(0024F269) Vcl::Controls::TWinControl::WndProc
(0024E8B0) Vcl::Controls::TWinControl::MainWndProc
(0037322C) System::Classes::_18201
(000152F7) USER32.dll
(00015D35) USER32.dll
(00015DE3) USER32.dll
(00015E41) USER32.dll
(0000F117) ntdll.dll.KiUserCallbackDispatcher
(000186C0) USER32.dll.SendMessageW
(0002B06D) COMCTL32.DLL
(000D0845) COMCTL32.DLL
(000A207A) COMCTL32.DLL
(000A10E2) COMCTL32.DLL
(0002EE7B) COMCTL32.DLL
(000152F7) USER32.dll
(00015D35) USER32.dll
(0001FD3A) USER32.dll
(0001FD60) USER32.dll.CallWindowProcW
(0024F37A) Vcl::Controls::TWinControl::DefaultHandler
(00406EE2) Customdirview::TCustomDirView::WMLButtonDown
%

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.

For details about this issue, see
https://winscp.net/tracker/1462

<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 5.13.6

Error message:
Invalid access to memory.

Stack trace:
(008BEA9E) __DynamicCastVCLptr
(0005A466) ntdll.dll
(0000F12E) ntdll.dll.KiUserExceptionDispatcher
(006F2EFB) TDownloadQueueItem::TDownloadQueueItem
(000079D3) TCustomScpExplorerForm::AddQueueItem
(00007715) TCustomScpExplorerForm::CopyParamDialog
(00042BDC) TScpCommanderForm::CopyParamDialog
(0000E62D) TCustomScpExplorerForm::ExecuteFileOperation
(0000F590) TCustomScpExplorerForm::ExecuteFileOperation
(0000F617) TCustomScpExplorerForm::ExecuteFileOperationCommand
(0000F79E) TCustomScpExplorerForm::ExecuteCopyOperationCommand
(000396D1) TNonVisualDataModule::ExplorerActionsExecute
(003C325C) System::Actions::TContainedActionList::ExecuteAction
(001A903D) Vcl::Actnlist::TCustomAction::Execute
(00381118) System::Classes::_18201
(000152F7) USER32.dll
(00015D35) USER32.dll
(000167BF) USER32.dll
(00016885) USER32.dll.DispatchMessageW

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

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

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

WinSCP 5.19.6

Error message:
Invalid access to memory.

Stack trace:
(00FC46C2) __DynamicCastVCLptr
(00087B7F) ntdll.dll
(00074001) ntdll.dll.KiUserExceptionDispatcher
(00CF6933) TDownloadQueueItem::TDownloadQueueItem
(00008E47) TCustomScpExplorerForm::AddQueueItem
(00008C07) TCustomScpExplorerForm::CopyParamDialog
(00050F98) TScpCommanderForm::CopyParamDialog
(0000FF23) TCustomScpExplorerForm::ExecuteCopyMoveFileOperation
(00010CA0) TCustomScpExplorerForm::ExecuteFileOperation
(00010E91) TCustomScpExplorerForm::ExecuteFileOperation
(00010F17) TCustomScpExplorerForm::ExecuteFileOperationCommand
(0001109E) TCustomScpExplorerForm::ExecuteCopyOperationCommand
(00046FE2) TNonVisualDataModule::ExplorerActionsExecute
(0040B564) System::Actions::TContainedActionList::ExecuteAction
(001CD651) Vcl::Actnlist::TCustomAction::Execute
(003C7B64) System::Classes::_18201
(00040519) USER32.dll
(000374E5) USER32.dll
(00035235) USER32.dll
(00034FFB) USER32.dll.DispatchMessageW

The problem happens rarely. I cannot reproduce it.