>When class is open in Class Designer you can access Include File on the Class menu.
>>
>>I've tried changing the File Locations default include file to no avail. Is there some way of searching through the vcx itself to see if this is referenced in it - particularly with the wrong path?

Yes, I was able to - and thought I had opened each class in the vcx to check the path. turns out I missed one. After that, no errors.

Thanks for your help!