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.
This error pops up if I click the "Browse" button under Integration/Applications in the preferences window.
WinSCP 5.7.5
Error message:
Invalid access to memory.
Stack trace:
(0037F004)
(0005A5DA) ntdll.dll
(0000F12E) ntdll.dll.KiUserExceptionDispatcher
(00123717) SHELL32.dll
(00006381) COMDLG32.DLL
(0000905E) COMDLG32.DLL
(0000A4A0) COMDLG32.DLL
(0000A42E) COMDLG32.DLL
(00010C72) COMDLG32.DLL
(0000C70B) COMDLG32.DLL
(0000C602) COMDLG32.DLL
(00007455) COMDLG32.DLL
(00006F92) COMDLG32.DLL
(000152F7) USER32.dll
(0003E9DA) USER32.dll
(0003E77F) USER32.dll
(0003E884) USER32.dll
(000152F7) USER32.dll
(00015D35) USER32.dll
(00018659) USER32.dll
(0004106A) USER32.dll
(0003BF46) USER32.dll
(0003BE85) USER32.dll.DialogBoxIndirectParamAorW
(0003BC09) USER32.dll.DialogBoxIndirectParamW
(00004975) COMDLG32.DLL
(0020133F)
(001FE625)
(001FF2C2)
(001FF177)
(0007E7F8)
(00775B8B)
(00217D0B)
(0021C2F9)
(00184D64)
(0021C45F)
(0021C2F9)
(0021B940)
(0034021C)
(000152F7) USER32.dll
(00015D35) USER32.dll
(00018659) USER32.dll
(000186C0) USER32.dll.SendMessageW
(000A359B) COMCTL32.DLL
(000A35FE) COMCTL32.DLL
(000A3488) COMCTL32.DLL
(000152F7) USER32.dll
(00015D35) USER32.dll
(0001FD22) USER32.dll
(0001FD48) USER32.dll.CallWindowProcW
(0021C40A)
(0021C2F9)
(00184D64)
(0034021C)
(000152F7) USER32.dll
(00015D35) USER32.dll
(000167BF) USER32.dll
(00016885) USER32.dll.DispatchMessageW
Status: unknown_rel_addr
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.