Lanap BotDetect ASP.NET CAPTCHA is a website security solution designed to prevent automated registrations (spambot) with CAPTCHA image. While the code cannot be read by machine (computer program), it is easily read by a human. Key features: generates CAPTCHA image with textual code rendered in it, customizable, many different algorithms, custom size and image format, full server side component, not dependent on other software and it can be royalty free distributed. 'Developer Edition' includes FULL SOURCE CODE and ROYALTY FREE distribution rights!