Microsoft Flight Simulator X is the 10th installment in its very popular software released as video games and known as Microsoft Flight Simulators. This is the first version that obliterates the need for the gamer to insert the disc in to his PC to play the game. This is because of the use of a new type of electronic distribution that uses licensing keys. Microsoft Flight Simulator is available in many different versions Microsoft Flight Simulator X Gold Edition is one of them. This is the expansion pack that combines the features of Acceleration Expansion pack and the Deluxe Edition pack into one version.