extract audio from video with Cool Edit 2000?

[cv_fr]

hi,

i have a problem:

i have cool edit 2000.
i have a movie of *.avi type. in this movie, there is a song that i want to have in mp3 type.
i heard that in Cool Edit Pro, there is a possibility to "extract audio from video" but it doesn't seems to exist in Cool Edit 2000.
i tried to run the movie and to record in Cool Edit at the same time, but there is a loss of quality in the final mp3 file, and sometimes, there are breaks because the 2 softs (media player and cool edit) at the same time seems to be to heavy.

how can i do?
maybe i need to install a new functionnality on my Cool Edit 2000 soft?
or maybe do i need to install another software to make that?

thanks a lot for your answers