We have a third-party plugin tool (which links with our CRM) for
Outlook 2003 which has its own "Create New Contact" wizard we want
people to use instead of creating a new contact with Outlook.

The question is, how do we remove their ability to create a new contact
using Outlook's default contact creation screen?

It would be nice if we could remove the button(s) used for creating a
new contact, but the problem is the multi-function button on the
left-hand side of the toolbar - when you're on the contact screen it
become a Create New Contact button. But removing the entire button
would really annoy people since it removes the New button for all the
other parts of Outlook as well!

Perhaps I could create a custom form that replaces the standard contact
creation form that simply gives them a reminder to use the plugin's
button instead?

Thanks,
Eric