BotVerify for ASP.NET is an ASP.NET Web Control that allows you to prevent automated registrations on your web site - (known as CAPTCHA™).
Features
1. Over 50 CAPTCHA styles.
2. Over 10,000 variety of CAPTCHA output textures.
3. Custom CAPTCHA key length.
4. Custom CAPTCHA image width and height.
5. Custom CAPTCHA font face, font size and font style. You can add variety of fonts.
6. Custom CAPTCHA border color, border width.
7. Audio support - Audio CAPTCHAs help visually impaired individuals navigate the Web easily.
8. Choose between alphanumeric, alpha and numeric key format.
9. Image or Flash support.
10. Choose between jpg, gif, bmp, png and swf CAPTCHA output format.