I've been getting the following errors on my Exch2003 server for the lastfew of months now. Event 8197 is logged every 25mins and I've gone over Microsoft article 828764time & time againbut have been unable to relsove the issue. Event 9175 only appears when the offline address book is sheduled to built at 5am. Needless to say the offline address book has not been updated for a few months now. It's been very difficult to get information regaring these problems. Apart from that everything else appears to be working fine. Any advise would be a great help! Event ID 8197 - MSExchangeFBPublish Error initializing session for virtual machine SERVER. The error number is 0x80040111. Make sure Microsoft Exchange Store is running. MSExchangeFBPublish Event ID 9175 - MSExchangeSA The MAPI call 'OpenMsgStore' failed with the following error: The information store could not be opened. The logon to the Microsoft Exchange Server computer failed. MAPI 1.0 ID no: 80040111-0286-00000000 Event Type:ErrorEvent Source:MSExchangeSAEvent Category:MAPI Session Event ID:9175Date:11/25/2007Time:7:31:46 AMDescription:The MAPI call 'OpenMsgStore' failed with the following error: The attempt to log on to the Microsoft Exchange Server computer has failed.The MAPI provider failed.Microsoft Exchange Server Information StoreID no: 8004011d-0512-00000000 Kind Regards, Mohammed Muzaffar. Carrier.

Hello all, I am receiving the same event ID's except the 9175 I have states: Event ID 9175 - MSExchangeSA The MAPI call 'OpenMsgStore' failed with the following error: The attempt to log on to the Microsoft Exchange Server computer has failed. The MAPI provider failed. Microsoft Exchange Server Information Store ID no: 8004011d-0512-00000000 Event Type:ErrorEvent Source:MSExchangeSAEvent Category:MAPI Session Event ID:9175Date:5/29/2008Time:8:17:11 AMDescription:The MAPI call 'OpenMsgStore' failed with the following error: The attempt to log on to the Microsoft Exchange Server computer has failed.The MAPI provider failed.Microsoft Exchange Server Information StoreID no: 8004011d-0512-00000000 Solutions I have tried: -I have restored a older copy of the mapi32.dll from a backup. Same errors -used a mapi32.dll from a win2k3 server not running exchange. Received an event ID stating the mapi32.dll was from a nonexchange server Is there something else I can try to resolve this problem Thanks..