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Download now
Sorry, there isn't anything to download...yet
This info is here FYI, but a Captcha control
should appear here shortly!
About the code
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CAPTCHA - Completely Automated Public Turing Test to Tell
Computers and Humans Apart
Or "Completely Arbitrary Public Term to Capture Human Attention"?
Clearscreen SharpHIP HIP-CAPTCHA Control for ASP.NET
Actual working CAPTCHA, designed for .Text blogs...
original,
updated
ASPNETResources
uses a CAPTCHA
All the info you need
Fighting Spambots with .NET and AI
explains what CAPTCHA is and gives a number of examples from Yahoo, AltaVista and NetworkSolutions.
Writing Your Own
CAPTCHA Application with VisualBasic.NET
Protect
your online forms PCMAG
Breaking
a visual Captcha
Captcha.net
James' Blog - Blog with MT
plug-in
Problems
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CAPTCHAs are unfriendly for the disabled and visually impaired; therefore, w3c accessibility
guidelines should be followed.
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The CAPTCHA is so tricky that some humans can't solve it either
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Useful links
Gradient code
Code that might be useful to build a CAPTCHA
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