Windows Media Player will not play regular codecs such as MP3, WMV, and AVI

Arthur, I have the codecs installed as listed below. Among them is the "DMO MP3 Decoder DMO 0055 mp3dmod.dll 6.1.7600.16385" codec. I don't think I have any special codec packs installed. Can you see any? If there are any, how do I uninstall them? The ...

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