I have win7 pro x64 on C
I have Gstudio8 on D:\Installs\GameStudioA8
I have Gstudio7 on D:\Installs\GameStudioA7
I have my projects on D:\GameDev\Workspace\<project_name>
C and D are different HDDs on same pc.

Everything works fine, also loaded sf_women about 40 times over, no corruption. Corruption is probably because of ramstick, it could have some hardware problems so that it sometimes works and sometimes not.

I remember having that sort of crash sometime ago, it turned out it was not related to gamestudio if i remember right.

Try installing Microsoft Security Essentials and run a scan. It is one of the things that Microsoft done right, it's free for those who have legit windows copies, and you probably wont need another antimalware-antivirus software.