This error code, generated by Windows Media Player, is very annoying because it is a general error code therefore has more then one reason for it.
1. You can not play WMV or ASF media on a website with Internet Explorer's Media Bar turned on
Internet Explorer has its own player for the Media Bar. To get around the c00d11cd error being generated you need to turn the Media Bar off. To disable Internet Explorer's (version 6) Media Bar click the Media button on the main Toolbar, then click "Media Options" in the new pane that opens. Now select 'settings', and then uncheck 'Play web media in the bar'.
2. You have a 'playlist' on your PC that you are trying to copy to a CD-R. When you hit the copy button it goes straight to the c00d11cd error
The most likely cause is DRM (DRM = Digital Rights Management). Check the songs on your 'playlist' to see if any of the content protected. To do this simply 'right click' on each song, then select the 'license tab'. If any of the songs are protected then you can not copy them without the appropriate DRM authority.
3. You have a 'playlist' on your PC that you are trying to copy to another computer. When you try and play on the new computer it goes straight to the c00d11cd error
The most likely cause is DRM. (DRM = Digital Rights Management)
It is likely you purchased and downloaded from a site Like Walmart.com Online stores like these set restrictions on what you can do with the .WMA files you download. It is likely that the DRM licence for your download restricts you copying to another PC.
4. You can not copy songs from a CD in the CD drive to your hard disk. Windows Media Player generates the c00d11cd error
The most likely cause is that something has gone wrong with the special file responsible for the 'encoding'. The name of the file is: wmadmoe.dll
The first thing we need to do is re-register this file with Windows XP. To do this go to the 'Start Menu' and select 'Run'. Now type in the following: regsvr32 wmadmoe.dll
If this does not work then the file itself may be corrupt. To fix this go to the 'Start Menu' again and select 'Run'. Now type in the following: sfc /scannow
This will now scan your XP machine to see if there are any corrupt system files. If there are any then XP will prompt you for the XP CD so it can get a new copy. This may help you resolve the c00d11cd error.
5. You can not play a certain video file. Windows Media Player generates the c00d11cd error
The most likely cause is that you do not have the correct codec installed to play back the sound and audio. Windows Media Player 9 will only not automatically download every codec there is.
6. You can not copy a CD onto the hard drive, Windows Media Player generates the c00d11cd error. You also may notice that under 'Copy Music' in 'options' the hard drive location is missing and can not be updated
Set the value by hand in the registry:
HKEY_CURRENT_USER\Software\Microsoft\MediaPlayer\Preferences
Registry String = CDRecordpath
Value = Path name of folder to store music on your hard drive e.g. C:\DOCUMENTS\Marc\My Documents\My Music
7. You can not play a file that has been sent to you via email. Windows Media Player generates the c00d11cd error
Windows Media Player does not like to play content when it is an email attachment. Please save the file onto your local drive, close the email application and Windows Media Player.
Now find the location of the file you just saved and double click. Windows Media Player should now be able to play your file with no problems.
8. You can not play an MP3 or WAV file. Windows Media Player generates the c00d11cd error
Windows Media Player will generate this error code when the name of the file is long or is long and contains spaces.
Please rename the file to a single word and keep under 6 characters. Now try again with Windows Media Player.
9. You can not play an AVI file you have downloaded from the Internet. Windows Media Player generates the c00d11cd error
It is possible that you have an AVI file that is encoded with the DivX Codec and that you have a corrupt AVI header.
Search for the utility DivFix105 at Google.com and use this utility to rebuild the AVI header.
10. You can not copy music from your CD's onto your hard drive. Windows Media Player generates the c00d11cd error
Windows Media Player will on certain occasions generate thie error when the 'Copy protect' box is checked.
This is not meant to happen, but to work around this issue try turning off this feature..
To turn copy protection off:
On the Tools menu, click Options.
Click the Copy Music tab.
Find the Copy protect music check box and clear the check box to turn it off.
11. You can not play MP3's. Windows Media Player generates the c00d11cd error
Play the MP3 in WMP6.4 by going to Start -> Run -> and type in: mplayer2
click on a mp3 in explorer - WMP9 comes up with same error - so disable all formats mp3, wma, etc in options.
Start WMP6.4 again and enable all formats
WMP6.4 now comes up by clicking on an mp3 and works
Now REINSTALL WMP9 again
NOW IT WORKS! No error...
If you are stuck playing content, you can bring up the 'old' media player 6.4 in XP by:
Start Menu -> run box -> , type in: mplayer2
You might consider making an upgrade of your Windows Media Player to a newer version.
Source: updatexp.com