Zach -- The URL that Web Help takes me to is:
http://www.microsoft.com/windows/win...nalid=80004005

PapaJohn -- the pvmjpeg30.dll file is not in my System32 folder or elsewhere
on my hard drive. I googled a bit for it and there are references to
'pvmjpg30.dll' (without the e), but that is not on my hard drive either.
The main reference is to a site for
Pegasus Imaging and they call it PICVIDEO and they want $39 to download it.
Are you thinking it is something that should have come with WMP Microsoft?

"PapaJohn" <papajohn@chartermi.net> wrote in message
news:OcS%23ZyGZIHA.4284@TK2MSFTNGP03.phx.gbl...
>I agree that a fix is better than a work-around... if I take my ffdshow
>codec out of the picture, MJPEG files still play.
>
> WMP plays them with pvmjpeg30.dll file in the system32 folder... check
> that it's there and try re-registering it in case it slipped a gear.
> --
> website references are to www.papajohn.org
>
> PapaJohn
>
>
> "zachd [MSFT]" <zachd@nomailplz.online.microsoft.com> wrote in message
> news:uTawOgGZIHA.1212@TK2MSFTNGP05.phx.gbl...
>>
>> What's the URL that Web Help takes you to?
>>
>> There's already an MJPEG codec on the system. It should work.
>> PapaJohn's suggestion might help you replace it if needed though, but
>> that shouldn't be needed.
>> AVI vs avi doesn't matter - the system is case-insensitive here.
>>
>> --
>> Speaking for myself only.
>> See http://zachd.com/pss/pss.html for some helpful WMP info.
>> This posting is provided "AS IS" with no warranties, and confers no
>> rights.
>> --
>> "John Hanley" <jphanley@ix.netcom.com> wrote in message
>> news:esWycIFZIHA.4896@TK2MSFTNGP06.phx.gbl...
>>>I have a Canon S3IS digital camera which can take movies. The movies
>>>show
>>> an .AVI extension and (I think) use an MJPEG codec. After transferring
>>> the
>>> movie files to my (Vista) hard drive, their behavior is erratic:
>>>
>>> - The movie files *will not* play in Windows Media Player. The WMP
>>> error
>>> message is: "Windows Media Player encountered a problem while playing
>>> the
>>> file". Clicking on Web Help reveals: "You've encountered error message
>>> C00D11B1 while using Windows Media Player."
>>>
>>> - The movie files *will not* play in Windows Media Center; WMC says
>>> "Cannot
>>> Play Video - Windows Media Center cannot open the file".
>>>
>>> - If I import the files into Windows Movie Maker, WMM appears to play
>>> them,
>>> but the preview screen is black.
>>>
>>> - GSpot reports that the file is a Motion JPEG, and that "Codec(s) are
>>> Installed".
>>>
>>> - The movie files *will* play using Canon's ZoomBrowser EX program (came
>>> with the camera).
>>>
>>> Related Info:
>>>
>>> - Both WMP & WMC play my .wmv files just fine. I also have one .avi
>>> file from a different source which plays fine.
>>> - The file extension on the AVI files that will not play is .AVI
>>> (capitalized); the file extension on the avi file that will play is .avi
>>> (lower case) -- probably does not matter?
>>>
>>> Will appreciate clues on where to look to solve the issue. Thanks.
>>>
>>>
>>
>>
>
>