record system sound (stereomix) to a file

Question

iam trying to record sound from an activex WMP control playing an internet radio stream, and because no simple way to do it, i decided to record the system sound or the so called "what you hear" (the stereomix, which is disabled in many PCs).

so, how can i record system sound and save it an mp3, wav... file, without enabling stereomix, or how to enable it programatically, without user interaction.

i have no experience with audio applications, so please dont say try

1. BASS - www.un4seen.com
2. NewAC - symmetrica.net/newac/
3. WavePlayer - www.delphiarea.com/products/delphi-components/waveplayer/

without giving me code exemple, cause i already tried to understand how to use, but, if i did i wouldnt askin you here.

i'am new here, and this is my first question
[i hope i get good answers]

THANKS IN ADVANCE :]