"Logon network security" Outlook 2003

[vrocco]

Does anyone know how to modify the setting in Outlook's Logon network security with a script?

These settings are accessed by going to Tools->Email accounts->View or change...->Change...->More Settings...->Security Tab

There is a drop down box at the bottom that says "Logon Network Security" I need to be able to script a change to these settings. I can't find any info about which key in the registry controls this.