CAPTCHA Control for ASP.NET

The AspXtremeCaptcha .NET class library that creates and validates image and sound CAPTCHAs (Completely Automated Public Turing test to tell Computers and Humans Apart), which can easily be used from ASP.NET application with just drag & drop from the Visual Studio Toolbox, no need to modify the .config file. The control also offers a flexible way to customize the CAPTCHA control's layout with template approach.