On my Exchange 2007, afterI updatethe address ists from Exchange Management Console, I only modify the Name of one of the Address Lists, but Address book does not update on Outlook and OWA. How to update my Address book on Outlook and OWA?PS. Exchange 2007 is upgraded from Exchange 2000Thx!

Hi, This behavior is by design. OWA will do an LDAP query which is why it immediately shows the updated display name (Immediately is based on a 1 DC environment. With multiple DCs replication of course will take time, at least 15 minutes).Outlook on the other hand goes through NSPI. NSPI won't reflect the change until the hierarchy table has been rebuilt. By default this is done every 720 minutes (12 hours).You can try to change it to 1.Note: Related parameter on DC isNTDS\Parameters\Hierarchy Table Recalculation interval (minutes).Make sure that you back up the registry before you modify it. Make sure that you know how to restore the registry if a problem occurs. For more information about how to back up, restore, and modify the registry, click the following article number to view the article in the Microsoft Knowledge Base: 322756 (http://support.microsoft.com/kb/322756/ ) How to back up and restore the registry in Windows.Note: After outlook can see the modified address list,please changevalue onHierarchy Table Recalculation interval (minutes) back to 720.Regards,Xiu