How do you resize the game window while playing a game? (i.e. World of Woarcraft, Counter-Strike, etc.)

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Please don't bump your topic 10 minutes later.

........ok

there should be an option to be full screen or not in CS dont know about wow but you can always alt tab and it wont be full screen anymore

Welll, I found out how to change the window, but thanks for the help anyway.