Public ShareFolder (formerly Public OutLook) enables you to share an Outlook-PST file with several users simultaneously without the need for running Exchange Server. You can share Contacts, Calendars, Inboxes or Tasks and have full control access and rights for each item. All built-in functions are preserved also in the Public Folder and the existing Outlook network does not have to be modified. Public ShareFolder is not a synchronization program, but a storage provider like MS Exchange Server. In addition, Public ShareFolder is compatible with many Exchange Server add-ons.