Cant ReConfig Outlook Mail to “No Email”

Once Outlook 2000 is installed, if you don’t specify “No Email” the first time through, you don’t get this option again. There’s gotta be a Registry hack to resolve this, but I can’t find it. We don’t use Microsoft LookOut for email, but let our users use the Calendar. O/S is Win2kPro, but I’ve had this happen with NT4 as well.
Thanks for your help!