Hello, I was wondering that if I buy Virtual PC with DOS, can I just install any retail version of Windows? Or, do I have to buy one of the Connectix OS packs? I was thinkin' that if I had Virtual PC with DOS, I could use a retail version of Windows 2000 that I already have, and install. Thanks for any advice, 'Beaver I'm doin' it just for fun. Trust me, I'd never use a Windows machine for anything I need to get done.