Windows Vista Error message in Windows Media Player 11.

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C00D1199: Cannot play the file
Windows Media Player cannot play the file. You might encounter this error message for one of the following reasons:
The file type is not supported by the Player. The following table lists the file types supported by the Player. If the file type you are trying to play is included in this table, then the file might have been encoded by using a codec that is not supported by Windows Media Player. If this is the case, Windows Media Player cannot play the file.
The file type is supported by the Player, but the file was compressed by using a codec that is not supported by the Player.
The file type is supported, but you are trying to play it in a way that is not supported by the Player. For example, you might have attempted to drag a DVD file with a .vob extension from a DVD to the Windows Media Player icon. Or you might have attempted to open a .vob file by clicking Open on the File menu.
You are trying to play one part of a multipart file. Use a newsreader or other program to combine the files, and then try again.
http://www.microsoft.com/windows/windowsmedia/player/9series/playererrors.aspx#c00d1199_0x00000000