How to bypass captcha

I found this website captchatrader.com

but i do not know how to use it
if anyone can help create an example for vb.net

sorry my bad english...

It doesn't bypass captcha, it solves it for you.

CaptchaTrader - Documentation

There's a freaking .NET Documentation file there, read it. Note that you have to request an API key to use the service.