Windows Media Player Version Error

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Yesterday I ran some of the security updates from Microsoft's update service. I also saw that there was a new version of Windows Media Player, so I decided, "hey, why not, i'll go ahead and install it while i'm here." What a waist of 45 minutes of my life.

The install seemed successful, so I started WMP. I was prompted through some wizard pages, make MWP the default player, etc, blah, blah, and then it finally tried to start the application. Immediately I received an error stating "wmplayer.exe has a version number of 10.0.0.3646 where 9.0.0.2980". I'm then offered the option to redownload/install the application; being on a broadband connection I say ok.

After download, installing, and going through the wizard once again, I'm presented with the same error. Not willing to try again, I googled and found the following good solution amongst a variety of more difficult solutions that may or may not have worked (i didn't want to try them).

Goto Start>> Run
Type "c:\windows\inf\unregmp2.exe /UpdateWMP"
Then simply restart WMP.

This was not my solution, so thanks goto Chris Lanier [MVP].