<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:
Acceso a memoria no válido

Rastreo de la pila:
(000123FE) ashShell.dll
(0100350E) C6083_0
(01005576) ____ExceptionHandler
(01002330) __ExceptionHandler
(00062496) ntdll.dll
(0000F13E) ntdll.dll.KiUserExceptionDispatcher
(00011301) ashShell.dll
(000104E3) ashShell.dll
(00007900) ashShell.dll
(00027C63) ole32.DLL
(00042125) ole32.DLL
(00027D87) ole32.DLL
(00027CFC) ole32.DLL
(00027A7F) ole32.DLL
(00027A30) ole32.DLL
(00027DEA) ole32.DLL
(00042125) ole32.DLL
(00041EA9) ole32.DLL
(00042125) ole32.DLL
(0004204D) ole32.DLL
(00048DD0) ole32.DLL
(00048D31) ole32.DLL.CoCreateInstanceEx
(000039B8)aswhook.dll
(00048CEA) ole32.DLL.CoCreateInstance
(000038E7)aswhook.dll
(00087122) SHELL32.dll
(00087220) SHELL32.dll
(000489A2) SHELL32.dll
(000224B9) SHELL32.dll
(000229B4) SHELL32.dll
(000228FC) SHELL32.dll
(000319C3) SHELL32.dll
(000228DF) SHELL32.dll
(00120B65) SHELL32.dll
(004655EF) Pastools::_16479
(000027EF) wWinMain
(01001521) C5951_0
(00038900) ntdll.dll
(000388D0) ntdll.dll

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 5.13.5

Error message:
Invalid access to memory.

Stack trace:
(008BED3E) C5105_0
(008C0DA6) ____ExceptionHandler
(008BDB60) __ExceptionHandler
(0006248E) ntdll.dll
(0000F15E) ntdll.dll.KiUserExceptionDispatcher
(000024B4) wWinMain
(008BCD75) C4973_0
(00038800) ntdll.dll
(000387D0) ntdll.dll

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 5.13.5

Error message:
Invalid access to memory.

Stack trace:
(008BED3E) C5105_0
(008C0DA6) ____ExceptionHandler
(008BDB60) __ExceptionHandler
(0005A466) ntdll.dll
(0000F12E) ntdll.dll.KiUserExceptionDispatcher
(000024B4) wWinMain
(008BCD75) C4973_0
(00038F70) ntdll.dll
(00038F40) ntdll.dll

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 5.13.5

Error message:
Invalid access to memory.

Stack trace:
(008BED3E) C5105_0
(008C0DA6) ____ExceptionHandler
(008BDB60) __ExceptionHandler
(0005A466) ntdll.dll
(0000F12E) ntdll.dll.KiUserExceptionDispatcher
(000024B4) wWinMain
(008BCD75) C4973_0
(00038F70) ntdll.dll
(00038F40) ntdll.dll

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 5.13.5

Error message:
Acceso a memoria no válido

Traza de la pila:
(008BED3E) C5105_0
(008C0DA6) ____ExceptionHandler
(008BDB60) __ExceptionHandler
(0007DABF) ntdll.dll
(0006B6E1) ntdll.dll.KiUserExceptionDispatcher
(000024B4) wWinMain
(008BCD75) C4973_0
(0006202A) ntdll.dll.RtlValidSecurityDescriptor
(00061FF5) ntdll.dll.RtlValidSecurityDescriptor

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 5.11.2

Error message:
Invalid access to memory.

Stack trace:
(0089C9C2) C5067_3
(0089EA2A) ____ExceptionHandler
(0089B7E4) __ExceptionHandler
(00062496) ntdll.dll
(0000F13E) ntdll.dll.KiUserExceptionDispatcher
(00002484) wWinMain
(0089A9F9) __wstartup
(000388F0) ntdll.dll
(000388C0) ntdll.dll

The problem happens rarely. I cannot reproduce it.