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Old 03-31-08, 04:26 PM   #2
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Join Date: Mar 2008
Posts: 1
Thumbs up Re: Outlook 2007 - interface has returned an unkown error

When you try to open a shared calendar in Outlook 2007, and you get the messaging interface error, you should take a look at the following site:
There a description of the problem and a link to the solution.
It worked so far by me...!
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