>All of a sudden when I try to compile some apps, I get an error message at the end of the compilation that says "file is not open".
>I have not done any major changes. In fact I tried compiling an app that I had done NO changes, and I get the same error message.
>After that I cannot run the exe at all.
>
>I am really perplexed, and I have no idea how to proceed in determining the problem.
>

Try running VFP as administrator. Just guessing, but thinking it's a rights issue.

Tamar