@cgcg: There were some very serious post how you can handle it. There is no "updateGame" function in Gamestudio. You have to do it yourself. So, please take a shot and stop complaining that others don't write you such a complex functionality. Thanks.

@Damocles: I hate such things! The best solution I have ever seen is integrated into the Playstation 3 system - if you start a game, it starts and if a new version is available, a loading screen comes where the stuff is automatically downloaded and then it gets installed and then the game starts. Everything is integrated and automated inside the game and the user doesn't have to do anything. The same goes similarily for Windows (automatic downloading updates).