i think by right clicking on a mp3 file and going into properties and selecting winamp to run them. doing this will also change the mp3 icons to the winamp lighting bolt icon.
btw ive been using winamp for years, and i love it, and before i used winamp i used Sonique(since it allowed me to convert mp3 into .wav for cd burning). both these far exceed WMV in their ease of making playlists and finding ****. plus both programs have 100x better visuals and skin options.
1998 Eclipse GST Spyder - 14b turbo | 3" Catback | Evo8 BoV | 170fwhp if that