To play most streaming media, you must decompress the compressed data before playing it. The file that decompresses the information is known as a codec. If the codec is not available on your computer, Windows Media Player attempts to download and install it.
This error indicates that the required codec was not downloaded. This could be because you do not have the appropriate browser or your browserÆs Internet security settings are too high and will not allow you to download the codec. Make sure that you have at least Internet Explorer version 4.0 or later installed on your computer.
To install the latest version of Internet Explorer on your computer, visit the Internet Explorer download page on the Microsoft Web site. If you are able to upgrade your browser, try playing the file or stream again, this should force your computer to download the appropriate codec and you should be able to view or hear the streaming media.
Note Internet Explorer does not have to be set as your default browser to download the codec or for the Windows Media Player to function properly.
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