Funny you ask, I looked EVERYWHERE to try and find the api/sdk. I know you can pay a ridiculous amount of money for it. Although since it was for my personal use, which I never ended up finishing, but since I have a copy of dragon 11, I was able to grab the api out of the program files folder. It is in there, and it works. Only problem is not having documentation, although the intellisense can give you a good idea how to use it. I was using vb.net, im not sure if it will work for vb6 though.