Important This section, method, or task contains steps that tell you how to modify the registry. However, serious problems might occur if you modify the registry incorrectly. Therefore, make sure that you follow these steps carefully. For added protection, back up the registry before you modify it. Then, you can restore the registry if a problem occurs. For more information about how to back up and restore the registry, click the following article number to view the article in the Microsoft Knowledge Base:
322756 How to back up and restore the registry in Windows
To resolve this issue yourself, follow these steps:
Log on as an administrator.
Click Start, type cmd in the Start Search text box, right-click cmd.exe, click Run as administrator, and then click Continue.
At the command prompt, type regsvr32 wmp.dll, and then click OK.
Select the VistaWMPFix.reg file that you created in step 6, and then click OK.
Did this fix the problem?
Check whether the problem is fixed by using Windows Media Player. If you can use Windows Media Player with no problems, you are finished with this article. If the problem is not fixed, you can contact support.