1)   Migo Professional 2.9
Migo allows you to create an encrypted backup of your Outlook, Outlook Express & Thunderbird email, files, desktop and other computer settings. With Migo you can be sure that your data will always be synchronized and current.

 2)   PSTSync 2.3
PSTSync, the ultimate tool for all of your PST file management. Now you can easily synchronize all of your data the smart way. PSTSync can handle all types of Outlook folders. It keeps all your computers in sync with your PST mail files at all times.

 3)   MAPILab Share`n`Sync 1.2
MAPILab Share`n`Sync is designed to solve two tasks: synchronizing Outlook folders on several computers and organizing shared access to Microsoft Outlook folders for small companies. The product supports all types of Outlook folders and items.

 4)   QSynchronization 2.0
Microsoft Outlook synchronization for Notebooks and Home PCs without or in connection with an Exchange-Server. QSynchronization synchronizes Microsoft Outlook of your Outlook notebooks and home PCs with your central Outlook Folders