I'm a big fan of LogMeIn Free. It's pretty easy to setup, and it gives you access to the pc through any browser. You don't have to worry about port issues or anything. I think it's what you should really look into using.

http://worldofsolitaire.com/ is an ajax solitare site, which I know isn't windows solitare but if one checks out the stats, people have wasted 68 years, 35 days on that site alone