RationalPlan is a great alternative to Microsoft Project with some extra-features like multiproject management (only for Multi Project version). It offers you the most important capabilities of a good project management software while beeing able to operate on various platforms starting with Windows, Mac, Linux and all other Java enabled platforms.
LanTalk XP
Effective communications for the office and home environment. If you work in a busy environment and need to communicate with others in the office, or maybe even colleagues in another building, make life easy for yourself and install LanTalk.
cpTracker
cpTracker will assist you in managing your contacts, prospects, customers, sales, projects and tasks to the last detail. Includes Query Wizard, Report Wizard, Spreadsheet Wizard, and more! cpTracker is your Complete Data Management Solution!
AB Sequest
A program for sharing and controlling information on service requests, complaints etc. Useful for real estate managers, helpdesks, all types of distribution and other situations where information on ongoing events must be available on a network
FootPrints Help Desk Software for Windows
Seavus Project Viewer
Seavus Project Viewer – the only complete MS Project Viewer – is the perfect tool for collaboration in projects where the people in the teams should view and share the information from the project management