Wednesday, March 23, 2011

Fix Outlook 2010 With Communicator 2007 R2 Error

Problem :

I use Windows 7 Enterprise (x64) with Outlook 2010 (x64) and Communicator 2007 R2 . I get Outlook Integration error in Office Communicator and could not update status information.
"Communicator could not determine the location of your Exchange Web services"


Solution :


What is in the latest released update for OC 2007 R2 for Exchange Connectivity:

· 64-bit MAPI is not supported for OC 2007 R2 in any configuration.

· In the event that MAPI is not available (Outlook not installed, or only 64bit MAPI is available) OC 2007 R2 falls back to EWS.

· In order for OC to discover Exchange and EWS, auto-discovery for Exchange to be enabled via the Exchange auto-discovery URLs.



Connectivity to Exchange Online:

· For customers that are using ExOnline where no auto-discovery is provisioned by BPOS, they should use 32 bit Office instead of 64 bit Office.

o BPOS uses local configuration files via the Single-Sign On Service Agent to configure Outlook to connect to ExO. OC relies solely on Exchange auto-discovery which is not configured for ExOnline.

o This will allow OC 2007 R2 to leverage 32bit MAPI to access Exchange Online via Outlook’s local configuration file that BPOS SSO/Service Agent drops.



Outlook Integration Error with 64bit Office 2010:

· For customers that are seeing an issue with on-premise Exchange deployments where auto-discovery is setup and enabled as described above , OC 2007 R2 CU4 should be able to connect to Exchange. These customers will still see an Outlook integration error in OC (since we couldn’t integrate with Outlook x64).

o For example, free/busy and out-of-office information should still be available in OC via EWS.

Hope this helps clarify the questions here.

2 comments:

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