The Free & Popular HESK Web Based Software in Complete Virtual Machine
Web Online Registration and Payment System for Events
HelpDEZk is a powerfull software that manages requests/incidents.
Tracking system for equipment repairs
COSST is a completely free open source support ticketing system.
A Helpdesk Ticketing and Asset Management System
MzzCRM 1-page 1-form PHP+MySQL Customer Relationship Management Script
Simplest wiki+tracker system
A simple contact script including a contact form and online viewer
Keep track of all your job costs, make sure you don't lose money
Build a collaborative software development site (software forge).