GrabSync solution provides a comprehensive bidirectional integration with MS Outlook so users can work in either environment.
BaseCamp integration with MS Outlook helps the users view, create and update information within the program they feel most comfortable using. Users can schedule an activity in MS Outlook and have it show up in the web application, or can bring BaseCamp data from the web application into MS Outlook. Users will have the information automatically synchronized between MS Outlook and the web application.
The plugin allows to run auto synchronization when the users start the MS Outlook program. All new, edited or deleted information in MS Outlook will auto sync with BaseCamp. Also, users can synchronize their data immediately by clicking the “Sync now” button on the plugin.
GrabSync BaseCamp allows a two-way integration. To use GrabSync plugin users first login to the “Properties” menu and choose the projects which they would like to synchronize with MS Outlook. Additional folders with the project name will appear in MS Outlook.
With help of GrabSync BaseCamp users can synchronize Basecamp TO-Dos with MS Outlook tasks, milestones with calendar. Users can synchronize messages and import contacts from BaseCamp. Work related information will separate from personal information.

To learn more, please follow this link: http://www.grabsync.com