try installing this version of ffdshow...

http://sourceforge.net/project/showf...kage_id=199421
--
website references are to www.papajohn.org

PapaJohn


"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.
>
>