>>Thought I would let you know, I'm on track to find the error.
>>
>>I started a new myBase.vcx in myClasslibs.exe and a form in myMain.exe that uses it, and I got it to work.
>>So I don't think it was because myClassLibs.exe couldn't be found. It has to be something hardcoded in the classlibs somewhere.
>
>Glad you might have gotten on the track to solve your problem. My sample worked, so it is possible. I have done apps (not .EXEs) that have dealt with external classlibs, but not quite the way you're doing it.

I'm not positive, but I think it was a corrupted vcx file, even though none of the classes were corrupt. So I'm guessing the header.

I moved each class 1 at a time over to a new vcx file and never had the error. After moving every class I never had the error again. I just deleted the old vcx file.