Help with Outlook 2003

[jimmyn66]

I have outlook express on my computer and the settings are If I reply to someone new that is not in my address book it will add it automatically.. My boss has outlook 2003 on his computer running Windows XP Pro on it an I can't seemed to find this feature anywhere in the setting. Is there a way to do this. I know it is easy to do manually by coping and pasteing.