The OCS 2007 Address Book service’s primary purpose is to provide updated GAL information to the OC 2007 client. It will also provide phone number normalization service for OC 2007 clients. The ABServer.exe is scheduled to query AD periodically for updates to user / group /information and provide this delta of updated information to the AddressBook share as .dabs files. After the initial installation and at 1:30 AM every day after that ABServer.exe will provide a full update to the AddressBook share with a lsabs file.
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