Windows Media quality

I'd told G that even with Windows Media 9, there is no substantial improvement in the video quality for our streaming services. And my test runs also showed the same. Today, while trying WM9 for transporting video from Studio to Planet, saw that for "Download and play" option, VBR is available, while for the streaming server option, only CBR is available in WM Encoder. And VBR makes a substantial improvement! Unfortunately we cannot use it...