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Let users in, keep bots out! The free CAPTCHASP control provides instant, highly customizable CAPTCHA verification.

Here is the default behavior of the control when it's dropped onto a new ASP.NET web form.
At runtime the CAPTCHA codeword is automatically generated with random characters.


Please type the code you see above:
   Reset


Other Example Pages:
Providing a custom codeword via code and handling a successful verification.

Automatic random codeword selection from a customizable word list

Handling failed codeword entry attempts.

Customization capabilities


DOWNLOAD the CAPTCHASP control (v1.02) now for free!
* Version 1.02 includes improved Firefox support.
* Version 1.01 contains a fix for the ViewState MAC issue some users have reported. (I removed the line of code that sets the Page.ViewStateUserKey in the OnInit event.)