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
When you try to use the Online Media or Internet TV features of Media Center Extender on a Windows 7-based computer, Windows Media Center shows a "Busy" cursor followed by a black screen before returning to the Windows Media Center Gallery. This problem occurs when a network router blocks the network packets that are sent by an online service to deliver media content such as movies or music. Some network routers block some media-based network packets that are sent by some online services. This article helps you fix the problem.
To resolve this problem, install Service Pack 1 for Windows Vista, and then update the Online Media settings for Media Center Extender.
Step 1: Update Windows Vista (if required)
Install Service Pack 1 for Windows Vista.
For more information about installing Service Pack 1, click the following article number to view the article in the Microsoft Knowledge Base:
935791 How to obtain the latest Windows Vista service pack
Step 2: Update the Online Media settings for Media Center Extender
Change the Windows Vista registry settings for Online Media.
Important This section, method, or task contains steps that tell you how to modify the registry. However, serious problems might occur if you modify the registry incorrectly. Therefore, make sure that you follow these steps carefully. For added protection, back up the registry before you modify it. Then, you can restore the registry if a problem occurs. For more information about how to back up and restore the registry, click the following article number to view the article in the Microsoft Knowledge Base:
322756 How to back up and restore the registry in Windows
To update the registry, follow these steps:
Click Start , type regedit in the Start Search box, and then press ENTER.
If you are prompted for an administrator password or for a confirmation, type the password, or click Allow.
Locate and then click the following registry subkey: