>I inherited two VFP apps. There are two folders containing class libraries - I'll call them A and B.
>If I try to rebuild the project for A, it tells me that it can't find class library B.
>A should not be using B.
>I can't find where A is trying to use B. I used the code reference and and searched the classloc of the .VCX's but found nothing
>Any idea?

Do I understand right:
Folder A
Folder B
Project in A gets compiled, and complains that it could not read a VCX from Folder B?

Because somehow you mix up folder and vcx and that is a different problem?

Anyway, may base ideas:
There was a path set in the original system, so it founds the libs, even if they are not set explicit?
Or somehow they instantiated the classlib all the time and later run the compile?
VFP search for files is a puzzle.