W7 SP1 has broken the streaming of Live and Recorded TV to my Xbox360S

[Swan Age]

Since upgrading my PC to Windows7 SP1 i can no longer stream WTV files to my Xbox360 extender using Windows Media Center. It displays the following error message: Video Error: Files needed to display video are not installed or not working correctly. Please restart Media Center and or restart the computer.


Restarting the host computer fails to cure the problem, as does resetting the network connection between the Xbox360 and the PC.

The files will however play back perfectly normal(locally) on my host PC Windows Media Center.

All other supported video file types play back properly on my Xbox360 extender in the video library, it seems to be only WTV files streamed from the Recorded TV library and the Live TV options that no longer work.

 

[NoN]

Have you tried a SFC /Scannow to repair eventually those Wtv files?

This is well known in Media Center but should had been fixed since in SP1:
http://support.microsoft.com/kb/2430365/

Microsoft recommand to run this tool:
http://www.microsoft.com/downloads/en/details.aspx?FamilyID=914FBC5B-1FBA-4BAE-A7C3-D2C47C6FCFFC