Dear All,
I have been researching on some users not being displayed in the GAL but to no avail.
I am running Exchange 2007 SP1 with .NET 3.5 SP1 and Outlook 2007 pro..
I updated the OAB using Organization-->Mailbox-->OAB but still nothing changed.
I also tried downloading the OAB from outlook but got the following error message:
“Task 'Microsoft Exchange' reported error (0x8004010F) : 'The operation failed. An object cannot be found.'”
I found a forum that said this is due to OAB in IIS not using standard SSL port changed it to "Require SSL..." and restarted IIS still nothing...
Event viewer error:
OALGen encountered an error while generating the changes.oab file for version 2 and 3 differential downloads of address list '\Global Address List'. The offline address list has not been updated so clients will not be able to download the current set of changes. Check other logged events to find the cause of this error.
If the cause of the problem was intentional or cannot be resolved, OALGen can be forced to post a full offline address list by creating the DWORD registry key 'HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\MSExchangeSA\Parameters\OAL post full if diff fails' and setting it to 1 on this server. When OALGen next generates the offline address list, clients will perform a full OAB download. After that time, the registry key should be removed to prevent further full downloads.
- Default Offline Address List
For more information, see Help and Support Center at
Thank you for your envisaged help...