How to create game in flex3 to run from cd?

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I want to create a game in flex3 (action script project). I have created game in flash 8 and flash cs3 to run from cd. But I dont know how create a game using as3 in flex 3 for cd. I am new in flex. can anyone guide me? I just need a guidance of what should I do or maintain to run the game from cd?