Hi,
      I'm trying to watch a short movie that was filmed by a digital camera or using cd given by friends
I upgraded the windows media player version, but I still can't watch the movie.
I get the above error class not defined sometimes?

Please help.
Thanks!
I didn't find the right solution from the Internet.
References:https://www.cnet.com/forums/discussions/error-r-message-80040154-while-using-windows-media-player-27279/

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