Problem Playing MPEG Files In Windows XP

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Guest

I recently started having a problem playing MPEG files in Windows XP. Here's
what I know and have done so far:

* The problem only occurs when I try to play an MPEG file from the Internet.
This includes clicking on a hyperlink to an MPEG file and using "File->Open
URL" through WMP. If I double-click on a file in Windows Explorer, it works
properly.

* I have tried using IE6, IE7B2, and Opera 8.5 - the problem persists
regardless of browser.

* I have tried reinstalling WMP10, downgrading to WMP9, and then upgrading
back to WMP10. I have also tried using Media Player Classic - the problem
persists regardless of media player.

* AVI, WMV, ASF, WAV, and other common media files all work just fine. It's
only MPEG files that don't work.


The exact problem is this: WMP will open and the MPEG file will be listed in
the playlist, but it won't play. WMP displays a single frame (I think the
last frame), but when I click the Play button, nothing happens. If I
right-click on the file in the playlist and go to Properties, the length of
the MPEG file is listed as 00:00.

I have a suspicion that my registry is somehow corrupted. Could someone
export their HKEY_CLASSES_ROOT\mpegfile tree to a .reg file and then post the
contents of that file?

Does anyone have any idea why this is happening?
 
Thanks for your post! It helped me solved the problem I was having.

I didn't have mcspmpeg.ax on my system per se; I had nikonmcspmpeg.ax, which
came with my Nikon PictureProject software. Once I uninstalled
PictureProject, everything fixed itself.

Thanks again!
 
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