Hallo Cameochi, hello Shirley,
thanks for your replies.
@Shirley: No, unfortunatly I can't recollect precisely what that file was. It was some Explorer-related file and the window displaying the message was Classic-Windows and not displayed properly as well. But I posted this in the win7 category as well and one user suggested that it might indicate a hard drive problem. Thus I will contact my vendor, and most likely will have to pack my tower, carry it there and we'll try to reproduce the problem.
@Cameochi: I used to run all my Stardock-Stuff on my 32-bit-XP-Notebook before and there I'm using the same Firewall/Anti-Virus-Program as on my new system. Everything worked fine. On my new system I can use Object Dock Pro and Cursor FX without any problems. Naturally I haven't tried about the other Object Desktop-Apps yet. But I might try to un install WB and reinstall it as you suggested.
Let's see what my vendor says...