This wordpress plugin will make a bridge between your Wordpress users (wp is the "master") and the AjaXplorer users. That means that users created/deleted in your wordpress installation will be created/deleted in your ajaxplorer installation, and that you will use the Wordpress login page instead of the "popup" to log on to AjaXplorer. So what do you need to make it work?

"AUTH_DRIVER" => array(
	"NAME" => "remote",
	"OPTIONS" => array(
		"SLAVE_MODE" => true,
		"USERS_FILEPATH" => "AJXP_DATA_PATH/plugins/auth.serial/users.ser",
		"LOGIN_URL" => "/wordpress/wp-login.php", // The URL to redirect (or call) upon login (typically if one of your user type: http://yourserver/path/to/ajxp, he will get redirected to this url to login into your frontend
		"LOGOUT_URL" => "/wordpress/", // The URL to redirect upon login out (see above)
		"SECRET" => "myprivatesecret",// the same as the one you put in the WP plugin option.
	        "MASTER_AUTH_FUNCTION" => "wordpress_remote_auth",
	        "MASTER_HOST" => "localhost", // the wordpress host
	        "MASTER_URI" => "/wordpress/", // wp URI
		"TRANSMIT_CLEAR_PASS" => false) // Don't touch this. It's unsafe (and useless here) to transmit clear password.
),

Warning, if you use "$" in your secret key (on the wordpress side), add a \ symbol before it in the bootstrap_plugins.php.

Please read the instructions in the AjaXplorer > Settings page of the wordpress plugin for more details, as well as the other bridges how-to files ( joomla, drupal, etc).