BotDetect 3 ASP.NET CAPTCHA 3.0.11
BotDetect 3 .NET w/ audio CAPTCHA is a website security component designed to protect your registration, comment, poll, guestbook, content submission, and other online forms from automated spam submissions.
BotDetect generates images with textual Captcha code rendered in them that are easily decipherable to humans -- but not to spam bots. Provides Audio Captcha alternative with secure but understandable Captcha code sound. In essence, it allows you to focus on your code or content -- instead of on deleting spam.
'Developer Edition' includes FULL SOURCE CODE and ROYALTY FREE distribution rights!