Michael,

To add to Fred's reply.. you'll be DIFFing the VCA or SCA files which are what the SCCTEXT program creates.

>I know nothing about Visual Source Safe, but gather from your mentioning SccText.prg that VFP does all of the work shaping the files into something VSS can use - Do I need to let Foxpro manage Visual Source Safe to have the conversion take place automatically/seamlessly? If this is true, then it looks like I can't just invoke a file comparison in VSS, I would need to first set up the Fox Project and then could use the VSS comparator? I'm gathering that VSS isn't aware of the type of project it's dealing with.
>If there were two copies of a file(e.g., scx or vcx), would both copies have to be checked in prior to comparison?