This plugin brings back the captcha plugin that was part of Elgg core before Elgg 1.8. The captchas will be displayed on the registration page and the lost password page by default. If you have a bit of experience in coding, you should also be able to include the captchas on other pages, if you need to.

Installation and configuration:

1. If you have a previous version of the Captcha plugin installed, disable it and then remove the captcha folder from your mod directory before copying the new version on the server,
2. Copy the captcha plugin folder into you mod folder,
3. Enable the Captcha plugin in the admin section of your site.

The captcha plugin also works with the walled-garden option of Elgg core enabled. If you use the alternative walled-garden plugin loginrequired released by me, you need to place the captcha plugin above the loginrequired plugin in the plugin list on your site.