Network/Unplugged 

Mobiliti's synchronization solution Network/Unplugged provides a transparent incremental synchronization and backup (including outlook backup) for today?s remote and mobile users along with offline viewing capability and ease of deployment
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Genius Connect 

GeniusConnect will synchronize Outlook data with any relational database that supports ODBC.You can use your own database schema!
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Adolix Outlook Express Backup 

The easiest way to backup email data (emails, accounts, signatures, address book, settings, message rules and blocked senders lists) from Top 9 Email Clients (Outlook Express,MS Outlook,Eudora,Netscape Messenger,IncrediMail,PocoMail,Bat and Opera).
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SynchPst for Outlook 

SynchPst - the easy way to synchronize data among two personal folders. Just choose either single or multiple folders/subfolders to synchronize. Synchronize all Outlook items including notes and distribution lists. Deletions are supported, too.
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A Simple Contact Manager 

Perhaps the world's most powerful contact management system. with iPod integration, Automatic contact verification, Instant Messenger, Outlook Integration, Mail Merge and MS Word Support, Email, advanced find features and much more!
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Outlook TabCal 

This little script lets you share your Outlook Calendar with the world. Once a day, just export your calendar and TabCal will fetch it automatically, read the data, and display it in searchable format from a browser, or as a regular monthly calendar.
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