MS XP decoder utility does not work in Vista due to the preferred decoder ID
being kept in a different registry location.
You need to use the following utility. Note: it may only work for 32 Vista

http://mediacenterexpert.blogspot.co...r-utility.html

"jz78817" <jz78817@discussions.microsoft.com> wrote in message
news:01FFDFB8-9F0D-4781-8130-19FE89F386F9@microsoft.com...
> John,
>
> I do have VLC installed, but other apps can't use its decoder so WMP and
> Media Center still have broken mpeg2.
>
> as a general note, on a lark I also tried using the Windows Media Decoder
> checkup utility to set the MS decoder as preferred, and that hasn't helped
> either. Though I don't know if that utility even works on Vista x64, but
> it
> was worth a shot.
>
>
> "John Inzer" wrote:
>
>> jz78817 wrote:
>> > nope, no luck.
>> =================================
>> Maybe it would be worth a try to
>> install the free VLC Media Player:
>>
>> VLC Media Player
>> http://www.videolan.org/
>>
>> --
>>
>> John Inzer
>>
>>
>>