>My boss is looking for something similar to a Norton Editor program he once used to compare two files, such as two PRG files. Is there some kind of shareware perhaps that would help a developer to compare two PRG files?

The best NC clone for Windows I ever saw, Windows Commander - see at http://www.ghisler.com/ - I'm using it for all sorts of stuff, and its install still fits on one floppy. And yes, has a file compare and directory compare, file view (recently added even a mp3 "viewer").