XenForo is a commercial Internet forum software written in the PHP
programming language using the Zend Framework (A Rapid Application
Development Framework). The software is developed by a team led by
former vBulletin lead developers Kier Darby and Mike Sullivan .
Server Requirements
- PHP: 5.2+
- MySQL: 5.x+
Installation
1. Extract the archive to a folder on your computer
2. See the INSTALL-UPGRADE.txt file for installation instruction
XenForo Link
Download Link