Microsoft Flight Simulator X Cd Key Micosoft Flight Simulator X Cd Key?

Micosoft Flight Simulator X cd key? - microsoft flight simulator x cd key

Hello My friend told me his flight simulator. I installed the game, but I get a message that says I need the CDKey. My friend lost what he needs to know. Is there any body know extra CD keys or should I contact about Microsoft and request a new one. Please help someone.