This post will entail the fun endeavors of reverse engineering the default MSN Internet Games that come with most “Professional” and higher versions of Windows (although discontinued from Windows 8 onwards). Namely the common protocol shared by Internet Backgammon, Internet Checkers, and Internet Spades.
more here.........http://www.codereversing.com/blog/?p=138
more here.........http://www.codereversing.com/blog/?p=138