Q: Why isn't it working?
A: Here are some common issues.
First make sure that the Windows Media Player Network Sharing Service is started. This was the service that kept me from sharing my media. For some reason, the service was stopped on my computer.
1. Log on to your computer as an administrator.
2. Click Start, and then click Run.
3. In the Run box, type services.msc.
4. In Services, find "Windows Media Player Network Sharing Service", and then verify that the Status column indicates Started.
5. If the service is stopped, double click on the service. A window should pop up.
6. In that window, ensure that the startup type is "Automatic."
7. Click on the Start button in that window to start up the service.
8. Close the services windows and see if you can view your media on the XBox.
Services that must be started:
SSDP Discovery - Must be started before the other two
UPnP Device Host
Windows Media Player Network Sharing Service
Problems with DRM files.
If you upgrade your computer's processor or hard drive or some other hardware components, your DRM files may no longer be valid.
I currently use Vista.
I was getting an error in the event logs:
A new media server was not initialized because WMCreateDeviceRegistration()
encountered error '0xc00d2751'. The Windows Media DRM components on your
computer might be corrupted. Verify that protected files play correctly in
Windows Media Player, and then restart the WMPNetworkSvc service.
Go into the registry editor (regedit.exe), and look at this key:
In there, there will be a "Datapath" variable. Double click it. The Value Data will show you where the DRM files live.
Mine lived at C:\ProgramData\Microsoft\Windows\DRM .
Trouble is that the files in there are hidden. So go up to "Organize" and select Folder and Search Options. Click on the view Tab. Then select Show hidden files and folders. Then you simply select everything in there and delete it.
Then you can go back to the Control Panel/Administrator Tools/Services and restart the "Windows Media Player Network Sharing Service". Or just reboot.