Installed wmfdist11.exe but codecs show unregistered

I'm putting together my new Q6600 computer and tried to get HD playing yesterday. Got avc/x264 playing with Haali splitter and ffdshow, but now trying to get VC1 to play. I installed wmfdist11.exe but all DMO codecs show unregistered in Directshow Filter Manager. Anything come to mind?? Does my Directshow version affect this?? I installed WinXP SP2, DirectX version is 9.?? Any tips would be appreciated. wmfdist11.exe did work fine on my older machine. Update - In Directshow Filter Manager the DMO Codecs show as "unknown", not "unregistered", just to clear up that point. Update 2 - Can't get WMVideo DMO to connect in graphedit at all. Feeding it with Haali Media Splitter (evo file). This worked on my old computer. Stuck now??

You could try to manually register them. Maybe something went wrong during installation. regsvr32 wmvdmod.dll ... etc. Edit: it is normal that DS Filter Manager shows them as "unknown". Happens for me too on a working installation.

AFAIK, MS codec updates are included and properly installed via WMP updates. Installing WMP 11 for Windows XP should help you out :)