Outlook.exe for Outlook 2007 and 2010 hangs on closing, when Office Communicator 2007 R2 client is r

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Wes Heywood

When closing Outlook 2007 and Outlook 2010, outlook.exe hangs in the processes if the Office Communictor 2007 R2 client is running. Clients are then unable to open a new Outlook session until the process is killed off.

Clients are running Windows 7.

Sally Tang


Does the problem occur if you are running Outlook in safe mode?

Start the Office program in safe mode


1. Click Start, point to All Programs, and then point to Microsoft Office.

2. Press and hold the CTRL key, and then click the Office program you want to start.

If the problem does not occur in the safe mode, this issue might be related to some third-party add-ins in the Office program, we can try to disable them.

Here is a KB article that may help you troubleshoot this issue:

Outlook 2007: Troubleshooting Outlook Crashes


Sally Tang


Sally Tang


I am writing to see how everything is going with this issue. Is the problem resolved? If there is anything I can do for you, please feel free to let me know.

Sally Tang




We are seeing the same behavior in our environment. Here is our typical configuration:
Windows XP SP3 (32-bit) / Windows 7 (64-bit) MS Office Outlook SP2 MS Office Communicator R2 (v3.5.6907.206)

We didn't see this problem with 3.5.6907.0, 3.5.6907.83 or 3.5.6907.196. We rolled out 3.5.6907.206 in September and users started reporting Outlook.exe hanging on exit. We've tried disabling add-ins and rolling back the patch... so far neither have reversed the issue. Oddly enough we are only seeing 10-15% of users seeing the problem even though most everyone is on the same install level.

Any ideas would be much appreciated.

Sally Tang


As some of the users encountered this problem, it might be related to some software conflicts.

Check with one client to see if the problem occurs in clean boot mode.

How to troubleshoot a problem by performing a clean boot in Windows Vista or in Windows 7


You can also scan for viruses and spyware on those computers.

Sally Tang


Sally Tang


As I have not heard from you for several days. I will go ahead and close this thread. If this issue is not resolved or you have any questions, please feel free to reply to us and this thread will be re-opened.

Sally Tang



Hi Sally,

We are also facing the same issue and it is with OC R2 (.206). Only couple of users are having it. Besides it, LM Outlook Add-in is also causing hanging problem to few users using Outlook 2007 / 2010.

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