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Outlook 2007 Hotfix MkII

Created: 10 Mar 2011 • 3 comments
Alex Brown's picture
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Good news. As some of you may be aware the previously released Outlook 2007 hotfix meant to resolve the maximum number of MAPI connections possible when using Outlook 2007 on an EV server actually caused a series of issues within Outlook 2007 itself causing knock on problems within EV.

Microsoft recently released an updated hotfix for this rollup which resolved these issues and now gives you an option for using Outlook 2007 in a performant manner on an EV server.

The hotfix was released towards the end of February and we have just finished our QA cycles to ensure it does the trick. It does, and so we invite you to start using this hotfix in production, on your EV servers, where appropriate.

For those that don't have it, the hotfix package can be accessed here:



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Rob.Wilcox's picture

Good news Alex, thanks for sharing.

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npereira's picture

When I tried to install the original hotfix which was supposed to increase the MAPI connections from 32 to 100 within the Outlook 2007 SP3 client:

I was unable to because the following message popped up:

"The expected version of the product was not found on the system"

I cant find any documentation to confirm this but I am guessing it is because SP3 no longer requires it?

Do you know if the new hotfix you are referencing also increases the MAPI connections?

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Alex Brown's picture

Your suspicion is correct. SP3 already contains the fix and therefore the update is no longer required.

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