Game Prelauncher is a popular comprehensive Windows system optimizer, developed specially for games. It turns Windows into a gaming platform by yielding all the computer resources to the game alone. To achieve this effect, the program disables most of the services except the critical ones, disables all the start-up programs, the Explorer shell and hundreds of libraries that are registered with it but not used for the operation of the game, sound themes and other objects. When the game is over, the program brings everything back. The program does not affect the quality of the graphics in the game; the graphics remains the way it is specified in user's preferences.