NoWinKey is mainly used for disabling the Windows key when playing games, to avoid unexpected pop-up! If you are a gamer (especially World of Warcraft players), what sort of benefit this applet can give you on earth, i think that does not need i say much.
In addition, it is also effective to all other programs, as long as they need to runn under the full-screen, NoWinKey is a savior on call.
Tips
If you change the source, it is also possible to disable any other keys as you like (You can download the source for all of Visual C++ 2008 Express Edition from the author's homepage).Download URLs
(18.2 KB | Homepage)
(Source Code)