Tuesday 17 April 2007

Office 2007 - Outlook Performance Patch KB933493

Here is a screen shot of my OST file (SBS Exchange 2003 SP2 integrated):

Yes, it is over a gigabyte. The second 800 MB OST file is the backup that was created when we did a Swing Migration to consolidate our multiple servers into one SBS server.

I have been having performance problems pretty much from day one of my Office 2007 install in Outlook 2007.

So, I have been keeping an eye out for updates for this and other Outlook issues.

Via the Exchange Team Blog, an update for Outlook can be found at the following Microsoft KB 932086: You may experience performance problems when you are working with items in a large .pst file or in a large .ost file in Outlook 2007.

This lead to KB 933493: Description of the update for Outlook 2007: April 13, 2007.

And, to the download patch here: Update for Outlook 2007 (KB933493) (.exe). Note, that validation will be required to download the update.

Vlad posted his bad experience this morning with this particular update: Why not to install Outlook 2007 Performance Patch (KB933493). So, I was pretty wary of the possibility of a broken Outlook after the patch.

I made sure to backup before beginning. Fortunately, the update took with no issues.

So, did the update work? On an initial observation, the answer is a profound YES!

So far, e-mail is actually opening when I click on it. Before the update, it would take anywhere up to 30 seconds before an e-mail would open up, be deleted, or a group would delete.

Thus, in my opinion, this update is good to go.

This is my previous blog post on Outlook Performance Issues.

UPDATE 07-04-25: The above link to Vlad's blog has since been removed and replaced by: Vladville volcano NOT related to 933493.

Philip Elder
Microsoft Small Business Specialists


Jim said...

When I try to install the patch, I get "The installation of this package failed," and Windows does not notify me that a solution is available. Does anyone know how to get around this? I tried rebooting before installing, but to no avail.

Philip Elder Cluster MVP said...


What does the system's App and Sys logs say? Are there any clues to its failure there?

Check the Windows directory for a KB933493.log file.

I don't see one on my system, but it may be there when things go sideways.

Let me know,


Unknown said...

Great Piece of Info.

Samson John


Alex said...

For work with Office files i advise next application-open ost file,open *.ost files and convert them into *.pst files, that can be opened by any program, compatible with Microsoft Outlook email client,allows opening ost files and to store your personal data independently from Microsoft Exchange Server, it is very important, if you'd like to access your contacts and email archive from outside of your company,convert them to a suitable format, that can be read by other email client.