When you try to use the Online Media or Internet TV features of Media Center Extender on a Windows Vista-based computer, you may receive the following error message:

Video Error
Files needed to display video are not installed or not working correctly, please restart windows media center or restart the computer

There is a download that resolves this issue. See Hotfixes for details.

32-bit Download: Windows6.0-KB938126-v3-x86.msu

64-Bit Download: Windows6.0-KB938126-v3-x64.msu

For more information on this issue, including potential causes, workarounds, and resolutions, see: Microsoft KB Article KB931364.

Microsoft has a way to automatically fix this problem, click the "Fix It" image to go to the Knowledge Base page that contains the download.