Uninstalling the patch will fix the problem; I know it cause a Sytem Restore
did yesterday and I have changed my setting to notify before installing now.

The note though, is that 911567, for me, completely broke the Address Book
and I am prompted to reinstall Outlook Express if I try to open any WAB file.
And, because the Address Book is broken, I can't send anything.

So, I guess I'll have to live with a security vulnerability in order to have
OE work.