Best serverless game solution?

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C#

VB

WCF

WPF

Thanks for reading :D

I'm in the process of making a game that revolves around sketching images. I'm trying to set it up so I can play with a small number of people, but without paying for an ASP.Net server. I currently have a shared PHP server account, but I doubt that would help in this case.

Pretty much, I need to set up a system that would allow the game to play with the other players, without needing a program running on a server. All the data I need to transfer is the list of strokes from an InkCanvas, the players and their statuses, the game info, and possibly a chat system. I've been looking at WCF P2P, but it doesn't look like it will play nicely over the net, and some of the people that will be playing this game will most likely be running XP. That said, if someone provides a WCF solution, I will use it, and gratefully.

Thanks for reading!