Captcha on form?

Looks like there is a CAPTCHA plugin that you guys recommend but it looks like it is not being supported anymore.

===== FAQ page http://ww.wp.xz.cn/plugins/register-plus-redux/faq/

Didn’t Register Plus have a CAPTCHA feature? How do I add a CAPTCHA to the registration form?

Register Plus offered two different CAPTCHA methods, a simple random CAPTCHA and reCAPTCHA. The simple one randomly created a 5-character sequence on a background image with two random lines drawn across the image, this CAPTCHA would be very easy for any OCR program to decipher as the characters were not modified in anyway and contrast was high. reCAPTCHA is a great idea, but there is another plugin, WP-reCAPTCHA endorsed by the reCAPTCHA developers that can be used to add reCAPTCHA to the registration page. I endorse the use of that plugin for that purpose.

http://ww.wp.xz.cn/plugins/wp-recaptcha/
Last updated 12/10/13