Remove the Codec: Microsoft Windows 2000 and Windows XP
Click Start, point to Settings, and then click Control Panel.
Double-click Sounds and Audio Devices or Sound and Audio Devices.
Click the Hardware tab.
Click Audio Codes, and then click Properties.
Click the Properties tab.
Click Fraunhofer IIS MPEG Layer-3 Codec, and then click Remove.
Click Yes to remove the codec, and then restart the computer if you are prompted to restart.
Click OK, and then click OK again.
Remove the Codec: Microsoft Windows 98 and Windows Millennium Edition
Click Start, point to Settings, and then click Control Panel.
Double-click MultiMedia or Sounds and Multimedia.
Click the Devices or Advanced tab.
Expand Audio Compression Codecs.
Click Fraunhofer IIS MPEG Layer-3 Codec, and then click Properties.
Click Remove. When you are prompted to remove the codec, click Yes.
Follow the instructions on the screen to remove the codec.
If you are prompted, restart your computer.
To reinstall the codec, go to this Microsoft url
http://search.microsoft.com/search/results.aspx?st=b&na=88&View=en-us&qu=wmfdist.exeOr install the latest version of windows media player, which will include the codec.
Oh,, I should correct myself, its Fraunhofer.....silly me.
