Error message ID number (for example, "C00D11CD")
Error message text "Windows Media Player has encountered an unknown error."
Windows Media Player version 9
Windows operating system XP home
What task you were trying to accomplish prior to encountering the error
message
If the error only occurs when you use a particular file, Web link, or URL,
provide details about that item : I was trying to play a movie and it wouldnt
work!