see http://www.slipstick.com/outlook/esecup.htm


>I'm using an OUTLOOK com object in a VB.NET application. When I invoke the SEND method to send the mail message, OUTLOOK produces the following messages:
>
>1. A program is trying to access e-mail addresses you have store in Outlook. Do you want to allow this?
>
>followed by
>
>2. A program is trying to automatically send e-mail on your behalf. Do you want to allow this?
>
>Are there any settings within OUTLOOK that disable OUTLOOK from this prompt?