Just a friendly reminder to all of you that have the Office 2007 beta installed and still have Office 2003 installed: do not install the Office 2003 updates available through Windows Update. I did - stupid me I had the update service on automatic and when turning off the computer I said ok let’s install the patches.

After installing the latest patches, Update for Outlook 2003 Junk Email Filter (KB917149) and a few others, I started to receive the following errors in Outlook:

Cannot start Microsoft Office Outlook. MAPI32.DLL is corrupt or the wrong version. This could have been caused by installing other messaging software. Please reinstall Outlook.

I have seen several mentions of this problem in the newsgroups, and I this is probably the reason.

It did not help reinstalling Office 2007, so I did a system restore. And of course, don’t try this at home (or at work) if you don’t have a backup!