Hi
Try DOSbox

http://dosbox.sourceforge.net/news.php?show_news=1

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>I've tried some of these settings over the years because of a couple of old DOS games that I still like to play. BlockOut (3D tetris) still works... well, it worked until I got this new video card, and it actually still works but it switches video modes after every key, so it's unplayable. That's how I got into that :).
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>Can't he send you the thing to try on your own before he comes? I mean, how big can a DOS app be, couple of megs? Then you'd have a chance to be an expert in the matter when he brings the laptop.