How do I uninstall Windows Media Player 11 (from Windows XP)

I tried to uninstall Windows Media Player 11 using the 2 methods in http://support.microsoft.com/kb/934372/en-us

The 1st method rolled back Windows Media Player 11 , but I want to uninstall it.

The 2nd method gave me the following pop-window:

Run

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C:\WINDOWS\$ntUninstallwmp11$\spuninst refers to a location that is unavailable. It could be on a hard drive on this computer, or on a network. Check to make sure that the disk is properly inserted, or that you are connected to the Internet or your network, and then try again. If it still cannot be located, the information might have been moved to a different location.

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I am surprised that Microsoft supplies a product that one cannot uninstall.

I would very much like to uninstall Windows Media Player 11 -

If that is not possible, I could re-install it.

Thanks for any helo.