UltraVNC: Remote Access Tools VNC/RFB Remote Desktop Support Software
Simple-to-use/-install issue-tracking system: web, REST, email, CLI
Open-source ticketing, service desk and CMDB software
Web Online Registration and Payment System for Events
Open source help desk ticketing system
The Free & Popular HESK Web Based Software in Complete Virtual Machine
HelpDEZk is a powerfull software that manages requests/incidents.
Help Desk Software
Cory Support is a PHP application submit support tickets and staff
Ticket System .NET Open Source (ITS, Issue tracking system)