Real Audio Encoder Active X Control - description from Softdepia.com:
Encodes Wave Files TO Real Audio 8 Files. everything comes in this package to let developers add wave 2 real audio encoding right away there is no need for real products having to be installed on the end users computer because this control installs what is needed 1.7 meg install file and that is it :) fast wroking great sounding encoder
Real Audio Encoder Active X Control is a "Free to try" program. You can download and try it for an evaluation period.