Backgammon game

Hello! I am interested in building an online backgammon game to be played on the internet with various players from all over the world. The game should be written in C# or C++, because I want a downloadable version, player will download the software, install it on his own computer and then play it using my server. Game should keep all the data in a database:user name, country, ranking, etc. I don't want a flash version, I prefere C# or C++.If you are not very sure on your skills, please don't apply for this job, thank you!