Hello EE. I am trying to run OABInteg.exe but all I get is a cmd screen that flashes and then goes away. Also, do I run this on my Exchange Server or a workstation? We run Exchange 2003 in a 2003 Active Directory environment. Our 2003 Exchange was migrated from Exchange 5.5 a few years ago. I always seem to get Event ID 9327 from Source MSExchangeSA and Category OAL Generator and Outlook takes a while to open. Once it opens it fine. We have about 600 mailboxes we have a mix of Outlook 2003 and 2007 users.