Outlook – 2007 Connection Issues

I was experiencing an issue with a user having issues after migration of of exchange 2003 to exchange 2010.

When starting outlook 2007 it took 5 minutes before outlook was properly started Sad smile


Outlook was hanging all time.

After getting started on a wrong foot. I was thinking there was something wrong with his profile. After recreating from scratch it did not solve the issue ?

After my search on the net I tried several steps, untill this solved the issue.

It was an Add-on that was bugging me.

In Outlook 2007 go to Tools –> Trust Center –>



Go to Manage COM Add-ins


Disable all Add-ins. But notice that in some case you get this message


To solve it start Outlook as Administrator


I restarted and disabled all of them.

YES the problem was solved ! Smile

Now you can test by activating 1 by 1 to see which is giving you a headache.

This approach might apply also for other versions of Outlook.

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