Lanapsoft BotDetect - ASP.NET is a website security component designed to protect your registration, comment, and other online forms from automated spam submissions. It generates CAPTCHA images that easily tell bots and humans apart. 50 different CAPTCHA algorithms, custom size and image format, sound support that allows access even to visually impaired.Version 2.0.8 adds 50 different CAPTCHA algorithms and improves security and scalability.
||Free to try
||Windows 2000/XP/2003 Server, Internet Information Server 4.0, Microsoft .NET Framework 1.1