C00D10D1 Error - .WAV file

I am on Windows Media Player 10.
I cannot play one specific .wav file.
The error that comes up is as follows:

"You've encountered error message C00D10D1 while using Windows Media Player.
The following information might help you troubleshoot the issue.
Codec is missing

Windows Media Player cannot play the file (or cannot play either the audio
or video portion of the file) because the Philips CELP (120) codec is not
installed on your computer."

I have looked for this specific codec, and so far have not been able to find
anything. I cannot update my codecs through the internet, as I do not have an
internet connection for the computer in question. I can, however, use e-mail
and usb keys to transfer things back and forth if necessary.

Any help would be greatly appreciated.