I've faced this issue for a while, no longer have it but ... I just can't remember how I got rid of it
I remember that it didn't happen after a fresh VFP restart
I hope other details can make their way up in my memory ...

>I'm working with a customer and we're having an issue with the build process for a COM server. On my machine here and another test machine everything works just fine. However, for the customers machine and 2 others he's tried compilation of the COM server results in:
>
>Function argument value, type, or count is invalid
>
>The .exe file is not built. If we remove the one OLEPUBLIC class the project builds fine - it's only when compiling to COM that it fails. There is no errors.txt file since the project actually compiles OK.
>
>I know VFP requires Admin rights in order to and we are running FoxPro with Run as Administrator. I also know that Type library creation can fail if there are invalid characters in the public interface of a COM server, but since it works just fine for me that is unlikely to be the problem.
>
>Has anybody run into this before? Any other ideas what we can try?
>
>Some other thigns I've suggested:
>
>* Recreate the project and recompile (same result)
>* Move the project to a folder off the root (ie. c:\test to avoid path issues) (same result)