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 5.17.5
Error message:
Invalid access to memory.
your site gave error request is too large and i am writing error messages from winscp error window manually (windows 10 pro x64 downloaded from original site at 22-04-2020):
Stack trace:
(00F76763) _internal_memmove
(00087D6F) ntdll.dll
(00073211) ntdll.dll.KiUserExceptionDispatcher
(000B7757) TextFromClipboard
(000B781B) NonEmptyTextFromClipboard
(0003EFCD) TNonVisualDataModule::ExplorerActionsUpdate
(003E8584) System::Actions::TContainedActionList::UpdateAction
(001C7122) Vcl::Actnlist::TCustomAction::Update
(004A1A8D) Tb2item::TTBPopupWindow::TTBPopupWindow
(0049A0C2) Tb2item::TTBCustomItem::CreatePopup
(0049A599) Tb2item::TTBCustomItem::OpenPopup
(0049A685) Tb2item::TTBCustomItem::Popup
(004A2499) Tb2item::TTBPopupMenu::PopupEx
(004A2456) Tb2item::TTBPopupMenu::Popup
(00279E45) Vcl::Controls::TWinControl::WndProc
(002BD11F) Vcl::Comctrls::TCustomListView::WndProc
(003A4AA8) System::Classes::_18201
(00043389) USER32.dll
(00023F87) USER32.dll
(000234DA) USER32.dll.CallWindowProcW
(000756A7) COMCTL32.DLL
(00075746) COMCTL32.DLL
(0007545C) COMCTL32.DLL
(00043389) USER32.dll
(00023F87) USER32.dll
(000234DA) USER32.dll.CallWindowProcW
(0047BD83) Dragdrop::TDragDrop::WndMethod
(003A4AA8) System::Classes::_18201
(00043389) USER32.dll
(00023F87) USER32.dll
(00023B25) USER32.dll
(0002D0DD) USER32.dll
(000731CB) ntdll.dll.KiUserCallbackDispatcher
(000233FE) USER32.dll.SendMessageW
(0019E374) COMCTL32.DLL
(0019E543) COMCTL32.DLL
(0008DA13) COMCTL32.DLL
(00053752) COMCTL32.DLL
(00043389) USER32.dll
(00023F87) USER32.dll
(000234DA) USER32.dll.CallWindowProcW
(00279F56) Vcl::Controls::TWinControl::DefaultHandler
(004456E4) Customdirview::TCustomDirView::WMRButtonDown
(00279E45) Vcl::Controls::TWinControl::WndProc
(002BD11F) Vcl::Comctrls::TCustomListView::WndProc
(003A4AA8) System::Classes::_18201
(00043389) USER32.dll
(00023F87) USER32.dll
(000234DA) USER32.dll.CallWindowProcW
(000756A7) COMCTL32.DLL
(00075746) COMCTL32.DLL
(0007545C) COMCTL32.DLL
(00043389) USER32.dll
(00023F87) USER32.dll
(000234DA) USER32.dll.CallWindowProcW
(0047BD83) Dragdrop::TDragDrop::WndMethod
(003A4AA8) System::Classes::_18201
(00043389) USER32.dll
(00023F87) USER32.dll
(000230D9) USER32.dll
(00022EBB) USER32.dll.DispatchMessageW
(00F76763) _internal_memmove
(00087D6F) ntdll.dll
(00073211) ntdll.dll.KiUserExceptionDispatcher
(000B7757) TextFromClipboard
(000B781B) NonEmptyTextFromClipboard
(0003EFCD) TNonVisualDataModule::ExplorerActionsUpdate
(003E8584) System::Actions::TContainedActionList::UpdateAction
(001C7122) Vcl::Actnlist::TCustomAction::Update
(004A1A8D) Tb2item::TTBPopupWindow::TTBPopupWindow
(0049A0C2) Tb2item::TTBCustomItem::CreatePopup
(0049A599) Tb2item::TTBCustomItem::OpenPopup
(0049A685) Tb2item::TTBCustomItem::Popup
(004A2499) Tb2item::TTBPopupMenu::PopupEx
(004A2456) Tb2item::TTBPopupMenu::Popup
(00279E45) Vcl::Controls::TWinControl::WndProc
(002BD11F) Vcl::Comctrls::TCustomListView::WndProc
(003A4AA8) System::Classes::_18201
(00043389) USER32.dll
(00023F87) USER32.dll
(000234DA) USER32.dll.CallWindowProcW
(000756A7) COMCTL32.DLL
(00075746) COMCTL32.DLL
(0007545C) COMCTL32.DLL
(00043389) USER32.dll
(00023F87) USER32.dll
(000234DA) USER32.dll.CallWindowProcW
(0047BD83) Dragdrop::TDragDrop::WndMethod
(003A4AA8) System::Classes::_18201
(00043389) USER32.dll
(00023F87) USER32.dll
(00023B25) USER32.dll
(0002D0DD) USER32.dll
(000731CB) ntdll.dll.KiUserCallbackDispatcher
(000233FE) USER32.dll.SendMessageW
(0019E374) COMCTL32.DLL
(0019E543) COMCTL32.DLL
(0008DA13) COMCTL32.DLL
(00053752) COMCTL32.DLL
(00043389) USER32.dll
(00023F87) USER32.dll
(000234DA) USER32.dll.CallWindowProcW
(00279F56) Vcl::Controls::TWinControl::DefaultHandler
(004456E4) Customdirview::TCustomDirView::WMRButtonDown
(00279E45) Vcl::Controls::TWinControl::WndProc
(002BD11F) Vcl::Comctrls::TCustomListView::WndProc
(003A4AA8) System::Classes::_18201
(00043389) USER32.dll
(00023F87) USER32.dll
(000234DA) USER32.dll.CallWindowProcW
(000756A7) COMCTL32.DLL
(00075746) COMCTL32.DLL
(0007545C) COMCTL32.DLL
(00043389) USER32.dll
(00023F87) USER32.dll
(000234DA) USER32.dll.CallWindowProcW
(0047BD83) Dragdrop::TDragDrop::WndMethod
(003A4AA8) System::Classes::_18201
(00043389) USER32.dll
(00023F87) USER32.dll
(000230D9) USER32.dll
(00022EBB) USER32.dll.DispatchMessageW
(00F76763) _internal_memmove
(00087D6F) ntdll.dll
(00073211) ntdll.dll.KiUserExceptionDispatcher
(000B7757) TextFromClipboard
(000B781B) NonEmptyTextFromClipboard
(0003EFCD) TNonVisualDataModule::ExplorerActionsUpdate
(003E8584) System::Actions::TContainedActionList::UpdateAction
(001C7122) Vcl::Actnlist::TCustomAction::Update
(004A1A8D) Tb2item::TTBPopupWindow::TTBPopupWindow
(0049A0C2) Tb2item::TTBCustomItem::CreatePopup
(0049A599) Tb2item::TTBCustomItem::OpenPopup
(0049A685) Tb2item::TTBCustomItem::Popup
(004A2499) Tb2item::TTBPopupMenu::PopupEx
(004A2456) Tb2item::TTBPopupMenu::Popup
(00279E45) Vcl::Controls::TWinControl::WndProc
(002BD11F) Vcl::Comctrls::TCustomListView::WndProc
(003A4AA8) System::Classes::_18201
(00043389) USER32.dll
(00023F87) USER32.dll
(000234DA) USER32.dll.CallWindowProcW
(000756A7) COMCTL32.DLL
(00075746) COMCTL32.DLL
(0007545C) COMCTL32.DLL
(00043389) USER32.dll
(00023F87) USER32.dll
(000234DA) USER32.dll.CallWindowProcW
(0047BD83) Dragdrop::TDragDrop::WndMethod
(003A4AA8) System::Classes::_18201
(00043389) USER32.dll
(00023F87) USER32.dll
(00023B25) USER32.dll
(0002D0DD) USER32.dll
(000731CB) ntdll.dll.KiUserCallbackDispatcher
(000233FE) USER32.dll.SendMessageW
(0019E374) COMCTL32.DLL
(0019E543) COMCTL32.DLL
(0008DA13) COMCTL32.DLL
(00053752) COMCTL32.DLL
(00043389) USER32.dll
(00023F87) USER32.dll
(000234DA) USER32.dll.CallWindowProcW
(00279F56) Vcl::Controls::TWinControl::DefaultHandler
(004456E4) Customdirview::TCustomDirView::WMRButtonDown
(00279E45) Vcl::Controls::TWinControl::WndProc
(002BD11F) Vcl::Comctrls::TCustomListView::WndProc
(003A4AA8) System::Classes::_18201
(00043389) USER32.dll
(00023F87) USER32.dll
(000234DA) USER32.dll.CallWindowProcW
(000756A7) COMCTL32.DLL
(00075746) COMCTL32.DLL
(0007545C) COMCTL32.DLL
(00043389) USER32.dll
(00023F87) USER32.dll
(000234DA) USER32.dll.CallWindowProcW
(0047BD83) Dragdrop::TDragDrop::WndMethod
(003A4AA8) System::Classes::_18201
(00043389) USER32.dll
(00023F87) USER32.dll
(000230D9) USER32.dll
(00022EBB) USER32.dll.DispatchMessageW
The problem happens rarely. I cannot reproduce it.
<If relevant, consider attaching a session log file or a screenshot)>
WinSCP 5.17.5
Error message:
Invalid access to memory.
your site gave error request is too large and i am writing error messages from winscp error window manually (windows 10 pro x64 downloaded from original site at 22-04-2020):
Stack trace:
(00F76763) _internal_memmove
(00087D6F) ntdll.dll
(00073211) ntdll.dll.KiUserExceptionDispatcher
(000B7757) TextFromClipboard
(000B781B) NonEmptyTextFromClipboard
(0003EFCD) TNonVisualDataModule::ExplorerActionsUpdate
(003E8584) System::Actions::TContainedActionList::UpdateAction
(001C7122) Vcl::Actnlist::TCustomAction::Update
(004A1A8D) Tb2item::TTBPopupWindow::TTBPopupWindow
(0049A0C2) Tb2item::TTBCustomItem::CreatePopup
(0049A599) Tb2item::TTBCustomItem::OpenPopup
(0049A685) Tb2item::TTBCustomItem::Popup
(004A2499) Tb2item::TTBPopupMenu::PopupEx
(004A2456) Tb2item::TTBPopupMenu::Popup
(00279E45) Vcl::Controls::TWinControl::WndProc
(002BD11F) Vcl::Comctrls::TCustomListView::WndProc
(003A4AA8) System::Classes::_18201
(00043389) USER32.dll
(00023F87) USER32.dll
(000234DA) USER32.dll.CallWindowProcW
(000756A7) COMCTL32.DLL
(00075746) COMCTL32.DLL
(0007545C) COMCTL32.DLL
(00043389) USER32.dll
(00023F87) USER32.dll
(000234DA) USER32.dll.CallWindowProcW
(0047BD83) Dragdrop::TDragDrop::WndMethod
(003A4AA8) System::Classes::_18201
(00043389) USER32.dll
(00023F87) USER32.dll
(00023B25) USER32.dll
(0002D0DD) USER32.dll
(000731CB) ntdll.dll.KiUserCallbackDispatcher
(000233FE) USER32.dll.SendMessageW
(0019E374) COMCTL32.DLL
(0019E543) COMCTL32.DLL
(0008DA13) COMCTL32.DLL
(00053752) COMCTL32.DLL
(00043389) USER32.dll
(00023F87) USER32.dll
(000234DA) USER32.dll.CallWindowProcW
(00279F56) Vcl::Controls::TWinControl::DefaultHandler
(004456E4) Customdirview::TCustomDirView::WMRButtonDown
(00279E45) Vcl::Controls::TWinControl::WndProc
(002BD11F) Vcl::Comctrls::TCustomListView::WndProc
(003A4AA8) System::Classes::_18201
(00043389) USER32.dll
(00023F87) USER32.dll
(000234DA) USER32.dll.CallWindowProcW
(000756A7) COMCTL32.DLL
(00075746) COMCTL32.DLL
(0007545C) COMCTL32.DLL
(00043389) USER32.dll
(00023F87) USER32.dll
(000234DA) USER32.dll.CallWindowProcW
(0047BD83) Dragdrop::TDragDrop::WndMethod
(003A4AA8) System::Classes::_18201
(00043389) USER32.dll
(00023F87) USER32.dll
(000230D9) USER32.dll
(00022EBB) USER32.dll.DispatchMessageW
(00F76763) _internal_memmove
(00087D6F) ntdll.dll
(00073211) ntdll.dll.KiUserExceptionDispatcher
(000B7757) TextFromClipboard
(000B781B) NonEmptyTextFromClipboard
(0003EFCD) TNonVisualDataModule::ExplorerActionsUpdate
(003E8584) System::Actions::TContainedActionList::UpdateAction
(001C7122) Vcl::Actnlist::TCustomAction::Update
(004A1A8D) Tb2item::TTBPopupWindow::TTBPopupWindow
(0049A0C2) Tb2item::TTBCustomItem::CreatePopup
(0049A599) Tb2item::TTBCustomItem::OpenPopup
(0049A685) Tb2item::TTBCustomItem::Popup
(004A2499) Tb2item::TTBPopupMenu::PopupEx
(004A2456) Tb2item::TTBPopupMenu::Popup
(00279E45) Vcl::Controls::TWinControl::WndProc
(002BD11F) Vcl::Comctrls::TCustomListView::WndProc
(003A4AA8) System::Classes::_18201
(00043389) USER32.dll
(00023F87) USER32.dll
(000234DA) USER32.dll.CallWindowProcW
(000756A7) COMCTL32.DLL
(00075746) COMCTL32.DLL
(0007545C) COMCTL32.DLL
(00043389) USER32.dll
(00023F87) USER32.dll
(000234DA) USER32.dll.CallWindowProcW
(0047BD83) Dragdrop::TDragDrop::WndMethod
(003A4AA8) System::Classes::_18201
(00043389) USER32.dll
(00023F87) USER32.dll
(00023B25) USER32.dll
(0002D0DD) USER32.dll
(000731CB) ntdll.dll.KiUserCallbackDispatcher
(000233FE) USER32.dll.SendMessageW
(0019E374) COMCTL32.DLL
(0019E543) COMCTL32.DLL
(0008DA13) COMCTL32.DLL
(00053752) COMCTL32.DLL
(00043389) USER32.dll
(00023F87) USER32.dll
(000234DA) USER32.dll.CallWindowProcW
(00279F56) Vcl::Controls::TWinControl::DefaultHandler
(004456E4) Customdirview::TCustomDirView::WMRButtonDown
(00279E45) Vcl::Controls::TWinControl::WndProc
(002BD11F) Vcl::Comctrls::TCustomListView::WndProc
(003A4AA8) System::Classes::_18201
(00043389) USER32.dll
(00023F87) USER32.dll
(000234DA) USER32.dll.CallWindowProcW
(000756A7) COMCTL32.DLL
(00075746) COMCTL32.DLL
(0007545C) COMCTL32.DLL
(00043389) USER32.dll
(00023F87) USER32.dll
(000234DA) USER32.dll.CallWindowProcW
(0047BD83) Dragdrop::TDragDrop::WndMethod
(003A4AA8) System::Classes::_18201
(00043389) USER32.dll
(00023F87) USER32.dll
(000230D9) USER32.dll
(00022EBB) USER32.dll.DispatchMessageW
(00F76763) _internal_memmove
(00087D6F) ntdll.dll
(00073211) ntdll.dll.KiUserExceptionDispatcher
(000B7757) TextFromClipboard
(000B781B) NonEmptyTextFromClipboard
(0003EFCD) TNonVisualDataModule::ExplorerActionsUpdate
(003E8584) System::Actions::TContainedActionList::UpdateAction
(001C7122) Vcl::Actnlist::TCustomAction::Update
(004A1A8D) Tb2item::TTBPopupWindow::TTBPopupWindow
(0049A0C2) Tb2item::TTBCustomItem::CreatePopup
(0049A599) Tb2item::TTBCustomItem::OpenPopup
(0049A685) Tb2item::TTBCustomItem::Popup
(004A2499) Tb2item::TTBPopupMenu::PopupEx
(004A2456) Tb2item::TTBPopupMenu::Popup
(00279E45) Vcl::Controls::TWinControl::WndProc
(002BD11F) Vcl::Comctrls::TCustomListView::WndProc
(003A4AA8) System::Classes::_18201
(00043389) USER32.dll
(00023F87) USER32.dll
(000234DA) USER32.dll.CallWindowProcW
(000756A7) COMCTL32.DLL
(00075746) COMCTL32.DLL
(0007545C) COMCTL32.DLL
(00043389) USER32.dll
(00023F87) USER32.dll
(000234DA) USER32.dll.CallWindowProcW
(0047BD83) Dragdrop::TDragDrop::WndMethod
(003A4AA8) System::Classes::_18201
(00043389) USER32.dll
(00023F87) USER32.dll
(00023B25) USER32.dll
(0002D0DD) USER32.dll
(000731CB) ntdll.dll.KiUserCallbackDispatcher
(000233FE) USER32.dll.SendMessageW
(0019E374) COMCTL32.DLL
(0019E543) COMCTL32.DLL
(0008DA13) COMCTL32.DLL
(00053752) COMCTL32.DLL
(00043389) USER32.dll
(00023F87) USER32.dll
(000234DA) USER32.dll.CallWindowProcW
(00279F56) Vcl::Controls::TWinControl::DefaultHandler
(004456E4) Customdirview::TCustomDirView::WMRButtonDown
(00279E45) Vcl::Controls::TWinControl::WndProc
(002BD11F) Vcl::Comctrls::TCustomListView::WndProc
(003A4AA8) System::Classes::_18201
(00043389) USER32.dll
(00023F87) USER32.dll
(000234DA) USER32.dll.CallWindowProcW
(000756A7) COMCTL32.DLL
(00075746) COMCTL32.DLL
(0007545C) COMCTL32.DLL
(00043389) USER32.dll
(00023F87) USER32.dll
(000234DA) USER32.dll.CallWindowProcW
(0047BD83) Dragdrop::TDragDrop::WndMethod
(003A4AA8) System::Classes::_18201
(00043389) USER32.dll
(00023F87) USER32.dll
(000230D9) USER32.dll
(00022EBB) USER32.dll.DispatchMessageW
The problem happens rarely. I cannot reproduce it.