I wrestled with this one for a few days, but finally got the basics figured out. You need a microphone plugged into your computer (not a USB mic or you'll have to configure the app for it.)
If you don't have SAPI, you can download 5.1 here. Try the script before, it seems SAPI gets distributed with most Vista and 7 versions.
This listens to what you say into the mic, runs it through the windows speech recognition engine, and outputs the results to console. Results improve the more you trai