sorry, but that is just plain wrong, 99.5% of all software that is written for any form of dos runs on any! Apple MAC.
Get your facts straight, please!

You apparently have not heard of Virtual PC?
 notice this is a Microsoft page

while this is the apple page

or have a look at all the Operating systems that you can run on a Mac, with virtual PC.

just about 1000. Operating systems that is, not just programms.

So, please inform all those knowledgeable people in the biz, rather than further spouting your half-information.

Sorry for being so forceful about this, but this is actually my standard reply to Windows users, that realise their only defence is the rehashing of this single issue talkingpoint.