Rational Functional Tester vb6 - Stackhash Crash on Win7

Question

Ive got an issue using RFT with VB6 on Win7 (32,64) bit. This isnt is not present on Windows XP.

I am unable to highlight objects, or call verification points as the VB6 application crashes with a stackhash error. I have done weeks of research and have tried various things(DEP, Compatibility mode, clean boots etc) but am thus far unable to isolate the issue.

It seems that certain properties, these can vary, are not available once the program has been compiled. Running the application through VB6 IDE in debug mode does not result in a crash. Once compiled though, the crash occurs constantly.

I have used Windbg to debug the error to see what happens, and can see that there is a call to unallocated memory, resulting in heap corruption. What causes this? Is there anyway around this?

Any help would be appreciated :)