A bad file in a Cloudmark anti-spam tools update installed
recently is causing Outlook to crash. Logs will show an error in NTDLL.DLL
and you may have some installer errors.
If you are affected, you won't need to uninstall Cloudmark to fix the
problem - download an update containing the fix. See
http://www.cloudmark.com/desktop/forum/viewtopic.php?t=1062 for more
information.