It didn't work as a service being run as the needed account. I found the following, "The Outlook Object Model is unsuitable for use from an application designed to be run as, or spawned by, an Windows NT service. This includes Active Server Page (ASP) applications running under Internet Information Service (IIS), and applications being run with the AT Scheduler or Task Scheduler services. This is a design limitation of Outlook."

http://support.microsoft.com/default.aspx?scid=kb%3ben-us%3b237913

Mitch