>
>I haven't found a practical limit to the path setting. From what I've seen it looks like you're using relative paths. Naturally, if you move the application to a folder where the relative paths are no long valid, VFP isn't going to be able to resolve them. Use full paths if necessary. Note: The only time I've run into this problem is when the source isn't on the current setting.

The relative paths are valid. The main directory is REDP
Under it is APPL under it are all apps directories. I copy just .app file from Btcrit directory to Query directory. So, running this thing from Query should be able to see ..\Btcrit ..\Btcrit\Progs, etc. files.

I ran these commands in command window:
cd ..\query
?set('path')
modi comm btcrit.h
modi comm btcrit.prg
fullpath('btcrit.prg')
?fullpath('btcrit.prg')
do btcrit with 'run'

Everything is in the path, but it still gives me Source not available :((