Customer Support
@1 Helpdesk XP
@Customer Quest
ActivDesk SQL
Active Stats
AdSupport
ams aLL mY sUPPORT
Angel Desk
AtomicDesk/SQL "plus"
Auscomp IT Commander
CGIResource.de Supportsystem
CNS Live Help
CosmicContacts
csLiveSupport
Customer Tracking System
Envex Support System
Fresh Question Manager
Helpdesk
HelpDesk Online
Helpdesk::Mail System
Inquiry Handler
iTrack Web Interface
Kontak
Live Advisor
MySupport
OTRS
Ox-Support
PerlDesk
PopService
Pro Supporter
RealTime Aide Personal Edition
rEmindZ
Simple Support
Simple Support
SunnyScript's MessageSuite (plus)
SuperDesk
Support System v2.1
SupportMan
Talk Now
Trouble Ticket Express
Web Dev Live Support
Website Supporter
WebSupport
WebTTS
WebUMake Instant Helper
WonderDesk
WonderDesk