Windows Media Player Does Not Play Windows Media Video 9 Content Correctly


When you try to use Windows Media Player to play Windows Media Video 9 content, the video plays as still images, or not at all.


This issue occurs if you have Windows Media Video 9 codecs that are not up to date. Some of the Windows Media Video 9 codecs that were available during the initial beta period do not have the fixes that were made after the beta release on September 4, 2002.


To resolve this issue, download the updated Windows Media Video 9 codecs. To do so, follow these steps:
  1. Start Internet Explorer.
  2. On the Tools menu, select Internet Options.
  3. On the General tab, in the
    Temporary Internet Files section, click
  4. Click View Objects.
  5. Right-click
    {33564D57-9980-0010-8000-00AA00389B71}, and then click
  6. Close the Downloaded Program Files window, click
    OK to close the Settings dialog box, and then click OK to close the Internet Options dialog box.
  7. Click Start, click Run, type the following command, and then click OK:

    rundll32 advpack.dll,LaunchINFSection c:\windows\inf\wmv9dmo.inf,Uninstall
The next time that Windows Media Player tries to play Windows Media Video 9 content, it will download the new Windows Media Video 9 codec.


Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article..

Article ID: 811166 - Last Review: Oct 22, 2008 - Revision: 1