Outlook security

From: Sashka (anonymous_at_discussions.microsoft.com)
Date: 11/27/03 

Date: Thu, 27 Nov 2003 12:30:12 -0800

When I am trying to send an e-mail using another program
the following message occures:

"A program is trying to access e-mail addresses you have
stored in Outlook, If this is unexpected, it may be a
virus and you should choose NO..."

After I click YES:

"A program is trying to automatically send e-mail on your
behalf. Do you want to allow this?...."

This is probably Outlook security option, but I can not
find how to get rid of it.
Can anybody help?
Thanks!