A couple of days ago I got a copy of Microsoft Virtual PC that allows you to setup a virtual computer under XP or 2000, in an emulated environment using any operating system you like (kind of cool).
Naturally I wanted to try and run Day Of The Tentacle and X-Wing. The only two games I bought and was never able to run (either sound or memory problems).
Neither of these worked under the Virtual PC. Running Windows 98, because that's the oldest OS I had lying around, but in the proses of finding a solution I found DOSBox, a DOS emulator for windows (and other platforms).
DOSBox won't run X-wing because the framerate is too low, but Day Of The Tentacle works fine, and for a game I bought five years ago its not too shabby.