http://blogs.msdn.com/b/dgoldman/archive/2007/08/23/having-problems-downloading-the-oab-after-you-have-migrated.aspxWhen an Outlook client attempts to downloads the OAB (Offline Address Book) it will attempt to download the OAB that is associated with that user’s mailbox store. Each mailbox store has an attribute stamped on it called 'msExchUseOAB', and this attributeen-USTelligent Evolution Platform Developer Build (Build: 5.6.50428.7875)http://blogs.msdn.com/b/dgoldman/archive/2007/08/23/having-problems-downloading-the-oab-after-you-have-migrated.aspx#4545374Fri, 24 Aug 2007 20:19:26 GMT91d46819-8472-40ad-a661-2c78acb4018c:4545374subject: exchange<p>Scalix: A Microsoft ‘Exchange killer’ no more? How to View Email Headers Companies Clamping Down on Messaging</p> <img src="http://blogs.msdn.com/aggbug.aspx?PostID=4545374" width="1" height="1">