Error message when you start Outlook 2007: "Cannot start Microsoft Office Outlook Cannot open Outlook window"

When you start Microsoft Office Outlook 2007 for the first time, you may receive the following error message: Then, when you start Outlook 2007, you may receive the following error message:

This issue occurs if the user names contain Unicode characters. When you run Outlook 2007 for the first time, Outlook does not translate user names that are stored as part of the user profile path in the registry from Unicode to ANSI correctly.

To resolve this issue, restart the computer.

Microsoft has confirmed that this is a bug in the Microsoft products that are listed in the "Applies to" section.