You may be unable to play Digital Rights Management (DRM)-protected content in Microsoft Windows Media Player 11 on a Windows Vista-based computer. When you try to play DRM-protected content, you may experience the following symptoms:
You receive the following error message:
0xC00D11B1 - Windows Media Player cannot play the file. This can occur when another program or operating system component encounters a problem but does not communicate the nature of the problem to the Player.
Windows Media Player may abruptly close after the license for the content has been downloaded.
This issue occurs if the computer is using a Windows XP Display Driver Model (XDDM) graphics adapter driver.
To resolve this issue, you must install the most current version of a Windows Display Driver Model (WDDM) driver for the video card or for the integrated video device in the computer. To do this, follow these steps:
Make sure that the copy of Windows Vista is a validated, genuine copy. Visit the Genuine Microsoft Software page, and then click Validate Windows: