For DOS/Windows 3 download the free DOSBOX. Installation is easy and for DOS games it works right away. If you have a win3 installer you'll need to grab the graphics drivers off the site, there are instructions somewhere on the forum.
If it ran well on XP you can try WMWare Player, and use your old XP discs. Win2k had trouble with the graphics, I haven't bothered to pursue the matter.