Trying to share media w xbox360 and pc i add the 360 to share with and the pc does not show up on the xbox

Please follow the instructions below to solve your problem go to my computer right click on the hard drive then select properties then click on the sharing tab and click on advanced sharing, then click on share this folder then, ok, apply, ok, then click start at the bottom left of the screen, control panel, network and internet, network and sharing center,
then change the following settings.
network discovery= on
file sharing=on
public folder sharing=on (password required)
password protected sharing=on
media sharing=on


then do the following:
start your media center on your xbox and start the set-up process until you get the extender code, then go to the media center on your PC and go to tasks, then scroll right to add extender click on it and then follow the set-up process.

Open windows media player press the libarary tab at the top , press media sharing you should see your xbox there press allow and then check,