Enable playing .ogg files in Windows media player

You can get the supporting Codec from Vorbis' site or from WMPlugins.
Download and install the above Ogg Directshow Codec, and Windows Media Player should be able to play the .OGG file. You may then associate the .OGG files with Windows Media Player.

Setting the file associations using the registry editor


Start Regedit.exe

Navigate to HKEY_CLASSES_ROOT

Create a new subkey named .ogg

Select HKEY_CLASSES_ROOT\.ogg

In the right-pane, perform the following:

Double-click (default) and set its data to mp3file

Create a new REG_SZ value named Content Type

Double-click Content Type and set audio/x-ogg as its data

Create a new REG_SZ value PerceivedType

Double-click PerceivedType and set its data to audio