dotProject is a PHP web-based project management framework that includes modules for companies, projects, tasks (with Gantt charts), forums, files, calendar, contacts, tickets/helpdesk, multi-language support, user/module permissions and themes. Features Include * User Management * LDAP / Active Directory authentication * Email based trouble Ticket System, (Integrated voxel.net's ticketsmith) * Client/Company Management * Project listings * Hierarchical Task List * File Repository * Contact List * Calendar * Discussion Forum * Resource Based Permissions WWW: http://www.dotproject.net