Business Contact Manager uses a custom database interfaced with Outlook. Its items are not like normal Outlook items.
THe All FIelds page is the page on an Outlook item that shows all the fields on that item. It may not be visible on all forms, depending on the form designer's preference.
FWIW, you should ask questions related to BCM in the microsoft.public.outlook.bcm group.
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Sue Mosher, Outlook MVP
Author of Configuring Microsoft Outlook 2003
and Microsoft Outlook Programming - Jumpstart for
Administrators, Power Users, and Developers