WMP Error: 0xC00D11CD

C00D11CD:  Unknown Error

This is a very general error and can be caused by many different things.  If you receive this error, a good bet is to try a different protocol. On the player, go to the settings tab and select "Pop1 (http)" on the media servers drop down list (or "mms" if you are already on http). If a different "Pop" is available for that channel, try that too.  NOTE:  Only “mms” is available on the Mac.

Many viewers also have success by simply updating or reinstalling Windows Media Player.  If you do reinstall WMP, you may need to uninstall first, restart, then download and install the latest version (preferably not the beta version - it may or may not work as well).  You may have to repeat this more than once. 

There is quite a bit of additional information on this error code here:  http://msmvps.com/blogs/chrisl/search.aspx?q=C00D11cd&p=1

NOTE:  If you do visit the links on this site, it would be helpful for you to know that you are trying to play .wmv files (which are closely related to .avi files) using Windows Media Player.