Somewhat related to this: VMWare has also released their VMWare server product for free.
(VirtualPC & VMWare are both very nice, in that you can use them to play old DOS and Win9x games that aren't XP compatible, in a virtual Win98 environment.
You can also use it as a sandbox to try new programs and such, before you install it on your 'real' operating system. Windows keeps running much smoother if you don't install/test/uninstall all kind of useless stuff, after all.
(VirtualPC & VMWare are both very nice, in that you can use them to play old DOS and Win9x games that aren't XP compatible, in a virtual Win98 environment.
You can also use it as a sandbox to try new programs and such, before you install it on your 'real' operating system. Windows keeps running much smoother if you don't install/test/uninstall all kind of useless stuff, after all.