See http://www.slipstick.com/dev/newdefaultform.htm. The form must be
published first.

Signature
Sue Mosher, Outlook MVP
Author of
Microsoft Outlook Programming - Jumpstart for
Administrators, Power Users, and Developers
http://www.outlookcode.com/jumpstart.aspx
> How to install a new contacts form into Outlook contacts
> and set it as the default form. What file is the form
> saved to and then how to define it as the default contact
> form for importing data to. Thank you.