See if this helps.
http://eli.nvcc.edu/recording_wav_files.htm
"LizzyC" <> wrote in message
news:CFE2FB85-89CA-4AAC-B1D6-...
> I've tried in vain to record a new system sound. By default (and no
> choice)
> the Vista sound recorder only creates sounds as .wma files. Yet the only
> files allowed to be incorporated into the Windows sytem are .wav files.
> I've
> also been trying to change or convert the .wma file to a .wav file but no
> luck. I'm new to Vista and would appreciate anyone's help. Thanks!