This is an addon for Powerful Exchange System -> http://codecanyon.net/item/powerful-exchange-system/533068
This addon works with 1.4 version and 2.0 / 2.0.1 version of Powerful Exchange System

This addon allows users to re-send the activation link to activate their account.
Toghether with the addon you get a text file that explains how to use and install the addon.