error you asked me to report

Not sure this is relevant but I disconnected the vpn which i use to connect just before i tried to stop winscp.

Stack trace:
[01396A4B] Vcl::Forms::TCustomForm::IsFormSizeStored
[7776023E] ntdll.dll.ZwWow64CallFunction64

[01570D36] System::GetDynaMethod
[7776023E] ntdll.dll.ZwWow64CallFunction64
[777609BA] ntdll.dll.KiUserExceptionDispatcher

[015709DE] System::TObject::Free
[7776023E] ntdll.dll.ZwWow64CallFunction64
[777609BA] ntdll.dll.KiUserExceptionDispatcher
[7776023E] ntdll.dll.ZwWow64CallFunction64
[01571AC2] System::__linkproc__ HandleAnyException
[7776023E] ntdll.dll.ZwWow64CallFunction64

[01260293] MoreMessageDialog
[7776023E] ntdll.dll.ZwWow64CallFunction64
[777609BA] ntdll.dll.KiUserExceptionDispatcher
[012603F4] MessageDialog
[011D6840] TCustomScpExplorerForm::FormCloseQuery
[0139B95D] Vcl::Forms::TCustomForm::CloseQuery
[013DC7E5] Vcl::Controls::TWinControl::WndProc
[01397588] Vcl::Forms::TCustomForm::WndProc
[0194B255] Vclcommon::C2516_0
[013DBE2C] Vcl::Controls::TWinControl::MainWndProc
[01500708] System::Classes::_18201
[77507919] USER32.DLL.CallNextHookEx
[77507B75] USER32.DLL
[77507CC8] USER32.DLL
[77507E21] USER32.DLL
[77760994] ntdll.dll.KiUserCallbackDispatcher
[7750A0A6] USER32.DLL
(00000812) UXTHEME.DLL.[6F5E1812]
(000007A8) UXTHEME.DLL.[6F5E17A8]
(00000DDA) UXTHEME.DLL.[6F5E1DDA]
[7750A03C] USER32.DLL
[77507919] USER32.DLL.CallNextHookEx
[77507B75] USER32.DLL
[7750C7B9] USER32.DLL.CallWindowProcW
[013DC8F6] Vcl::Controls::TWinControl::DefaultHandler
[0139A96D] Vcl::Forms::TCustomForm::WMSysCommand
[013DC7E5] Vcl::Controls::TWinControl::WndProc
[01397588] Vcl::Forms::TCustomForm::WndProc
[0194B255] Vclcommon::C2516_0
[013DBE2C] Vcl::Controls::TWinControl::MainWndProc
[01500708] System::Classes::_18201
[77507919] USER32.DLL.CallNextHookEx
[77509258] USER32.DLL
[775097EF] USER32.DLL
[77509854] USER32.DLL.DispatchMessageW

Thanks for your report.

Can you send me an email, so I can send you back a debug version of WinSCP to track the problem? Please include link back to this topic in your email. Also note in this topic that you have sent the email. Thanks.