On Windows Vista, I'm getting the following error when trying to play any files in Windows Media Player 11 or MuvAudio2: "c00d11b1" and/or "R&R Installer: Windows Media Revocation and Renewal". How can I fix this?

Solution 1:

Even if you aren't using a standard account, programs run without administrator priveleges by default.

To setup MuvAudio to run as an administrator, please do one of the following:

To run MuvAudio as an administrator: 

1. Open Windows Explorer.
2. Navigate to the location where you installed MuvAudio2 (default is C:\Program Files\MuvAudio2\).
3. Right-click on the file MuvAudio2.exe and choose Properties.
4. Click on the Compatibility tab.
5. On this tab, under Privilege Level, check the box labeled Run this program as an administrator.
6. Click OK.
7. Back in Windows Explorer in the MuvAudio2 folder, right-click on the file MuvAudio2Console.exe and choose Properties.
8. Click on the Compatibility tab.
9. On this tab, under Privilege Level, check the box labeled Run this program as an administrator.
10. Click OK.   

To disable User Account Control which will run all programs as administrator:

1. Open Control Panel.
2. Under User Account and Family settings click on the "Add or remove user account".
3. Click on one of the user accounts, for example you can use the Guest account.
4. Under the user account click on the "Go to the main User Account page" link.
5. Under "Make changes to your user account" click on the "Change security settings" link.
6. In the "Turn on User Account Control (UAC) to make your computer more secure" click to unselect the "Use User Account Control (UAC) to help protect your computer".
7. Click OK.
8. You will be prompted to reboot your computer. Do so when ready.

Solution 2:

There is a Microsoft website that checks the media playback components on your machine and then upgrades them which may resolve the error: http://drmlicense.one.microsoft.com/Indivsite/en/indivit.asp. 

Solution 3:

Basically, a soundcard driver that you have installed on your system has an unsigned sAPO which, to work, creates a registry key. The key is then causing the C00D11B1 error when trying to play files in Windows Media Player 11 or MuvAudio2. To fix the problem, please do the following (at your own risk as modifying the registry incorrectly can cause issues):

1. Click on the Start Menu.
2. Type regedit into the Start Search box and hit enter.
3. If asked for permission, click on Continue to open the Registry Editor
4. On the left-pane, navigate to the following: HKEY_LOCAL_MACHINE, then SOFTWARE, then Microsoft, then Windows, then CurrentVersion, and finally, Audio.
5. In the right-pane, double click on the text, DisableProtectedAudioDG, and change the value from 1 to 0.
6. Close the Registry Editor.
7. Restart your computer.    

Solution 4:

You may need a security component upgrade for Windows Media Player.  To upgrade your security components, please follow the instructions in this article: http://support.microsoft.com/kb/919589/en-us

Solution 5:

The Windows Media Digital Rights Managment system may not work if your computer hardware changes.  To correct this issue, please follow the steps in the following article: http://support.microsoft.com/?kbid=891664