Requirements: CB 1.4 or better; PHP 4/5 with GD and FreeType libraries
Note: This package along with 14 other CB Team released addons is offered as part of the Advanced and Professional membership subscription packages.
pro: works in register & password & email
con: no refresh button/ no disability (announced next release)
still missing: Captcha on login module
with refresh and module captcha i would rate good. Add than disability you get excellent.
one hurdle taken though!
Captcha on login module?
I think this would be an overkill and not user friendly. Even without the refresh feature (which would require AJAX and thus be unfriendly for accessibility) if you fail to get the security code the first time, then the application form is presented again with a new code and all (but the password) fields are kept intact.