ContactXchange auto duplicates and synchronizes Outlook contacts created in a private or a pst folder (and not marked private) to another Outlook contact folder- private or public. ContactXchange is a client side solution which requires set- up on each user's workstation. With our Relationship Wizard it is very easy to configure ContactXchange. The \\Source\\ contact folder may be your PRIVATE server side contact folder or a pst contact folder. The \\Destination\\ contact folder may be any PUBLIC or PRIVATE contact folder on your Exchange server or another contact folder within the same pst folder. Note: ContactXchange does NOT replicate contacts from public-to-private folders. ContactXchange is licensed for unlimited users in a single Exchange organizational unit (EOU). Additional EOU licenses available at a discount.