How many times are you playing games and you hit the Windows key instead of Ctrl or Shift? One is more then enough, especially with games like Counter-strike that make you restart the game.
I hate this Key will allow you to disable this key during full screen gaming.
The only right solution is to use our I Hate This Key program. You will be able to work as you've got used to work in Windows, but in some special cases, like playing games or working in Terminal Services Session, the program will block Windows Logo key, so nothing will hinder you to enjoy your game or to do your important job on server.