How to change the default setting for windows media player 11?

I want to know how can i change default setting for windows media player 11? I mean i want to make default for playing any videos. I have gone through settings withing media player but i am not able to find an option for that anywhere. Is there any one who can help me out???

Just follow the steps mentioned in the below article:
Set Windows Media Player 11 as your default player
If you have any doubt further than you can revert back for help.