| Name | Description |
|---|---|
| CaptchaControl | |
| CaptchaExpiredException | |
| CaptchaImage | |
| CaptchaImageHandler | Handles a special request for a CAPTCHA image. The request must pass the specs for the image via an encrypted serialized instance of CaptchaInfo. |
| CaptchaInfo | |
| InvisibleCaptcha | Simple CAPTCHA control that requires the browser to perform a simple calculation via javascript to pass. If javascript is not enabled, a form is rendered asking the user to add two random small numbers, unless the Accessible property is set to false. |
| SubtextCaptchaControl | Captcha control with subtext specific defaults. |