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.

WinSCP version 4.2.7
Windows XP SP3 on a Dell Optiplex 170L, Pentium 4 @ 2.8Ghz, 512MB RAM

When running keepuptodate - I run WinSCP from a Startup batch file:

The script functions and everything works, however, sometimes hours or days later I receive the Invalid Access to Memory error. Once the error is cleared it resyncs and keeps on chugging.