I've been looking at a new machine lately to upgrade this five year old desktop and I find that Win7 Professional and Ultimate have a feature called "Virtual XP". It allows Win7 to run any program that originally ran on XP. You simply call up "XP" and get an "XP environment" and run the old program.

Have no experience with it, but it does sound quite interesting.

If you get it, please post if it actually works.