I had this happen again a few weeks ago.
I believe what is causing the problem has something to do with checking an entire project into Visual SourceSafe at once.

This time, I removed the OLEPUBLIC keywords from the several classes that use it.
I then rebuilt my project and the build completed without errors.
I then restored the OLEPUBLIC keywords, and the build worked OK!

So, for future reference, this is the easiest workaround I've found so far.

Howard

>Today I started seeing this error when I build my project and generate an .exe file:
>
>Function argument value, type, or count is invalid.
>
>The error appears near the end of the build process.
>The last thing I can see on the status line looks like it's registering a COM server - an OLEPUBLIC class.
>
>This is a project I've been working with for a long time.
>
>I've done the following:
>1. Restored my project from a backup copy.
>2. Reinstalled VFP9 SP1.
>3. Looked at Filemon and Regmon logs of the build.
>
>How can I get more information about what the problem is?
>
>Thanks,
>Howard