Instructions
Plug an Ethernet cable into the "Ethernet" port on the back of your Xbox 360. Plug the other end of the cable into the "Ethernet" port on the back of your home network modem.
Download and install Windows XP Service Pack 2 and Windows Media Player 11 to your PC.
Press the "Power" button on your Xbox 360 console to turn it on.
Double-click the Windows Media Player icon on your computer to launch the application, then click the "Library" button.
Click the "Media Sharing" option in the Library menu. You will see the Xbox 360 system icon in a pop-up window. Select it and click "Allow."
Select the "Media" option in the main menu on your Xbox 360 using your game controller, then select a media option ("Music" or "Video"). Select the "Computer" option on the next screen.