I think I know what he's after. I handle the cheat submissions, I can draw meaning out of things that would make your eyes burst.
XP and Vista won't support DOS-based games (many 3.11 games fall into this trap as well). Methinks someone got a box of games and can't run them. The easiest way around this is with a DOS emulator like DOSbox. You run the emulator, then run the games from inside it.
Hence, how I can still be playing the original TIE Fighter from time to time here at GR.