In playing around some more so I could answer you intelligently I have discovered that something like this does not work:

IF ((FILE("SUPERCLS.PRG") OR FILE("SUPERCLS.FXP")) ;
AND FILE("SUPERCLS.VCX") AND FILE("SUPERCLS.VCT")) ;
OR FILE("SUPERCLS.APP")
DO SuperCls
ENDIF

but

DO SuperCls.app

works.

also
do a
does not work, but
do a.prg
does


Is VFP 8 that much more fussy about its commands?

Thanks,

Reg