I need to use CDO, but it brings up the dialog that something is trying to access my address book. Is there anyway to disable the message?
A1:
No, you can't disable it. Any time an outside application is trying to access certain properties, you'll receive the warning. Outlook 2003 trusts properly constructed add-ins and VBA, but even though CDO is called by the trusted code, it's not trusted. You'll have to use a program called Redemption (http://www.dimastr.com/redemption/) to avoid the prompts completely.
For the most up-to-date information on the security features in Outlook, see http://www.slipstick.com/outlook/esecup.htm.