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Dan · Guest

I cannot play a file in Windows Media Player. I have Me as
the Operating Systemt but the following error pops up "The
audio codec identified by the format tag 45 is required to
play this file. To determine if this codec is available to
download from the Web, click Web Help"

Marc [MSFT] · Guest

Hi Dan,

Was a third party codec or codec pack installed just before you lost the
ability to play MP3 files?

This error usually means that your MP3 decoder has been broken by something
that was installed on your system.

The easiest way to fix this should be to find the file l3codeca.acm on your
system, rename the file to l3codeca.bak, and then to run Windows Media
Player -> Help -> Check for Updates so that WMP can replace the
l3codeca.acm MP3 decoder that it needs to play MP3 files. Please refer to
the second paragraph under the following page for more information:
http://www.zachd.com/pss/pss.html#mjpeg

If this does not resolve your issue please reference the following
Microsoft KB Article:
http://support.microsoft.com/default.aspx?scid=kb;en-us;884769

Regards,

Marc [MSFT]

This posting is provided "AS IS" with no warranties, and confers no rights.
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