Whenever the latest Windows Vista update is installed on my computer,
Outlook 2007 doesn't work. It doesn't send and receive emails and when
I click on 'New Email' I get an error message which says: "The
messaging interface has returned an unknown error. If the problem
persists, restart Outlook."

The only way I can use Outlook is to use System Restore to 'undo' the
last Windows update. But then it is constantly trying to force me to
install the new update and I have to keep stopping it from uploading.

This has wasted hours of my time. What can I do please? Thank you.