It's in an MSDE database.
FYI, there is a separate newsgroup for BCM issues --
microsoft.public.outlook.bcm

Signature
Sue Mosher, Outlook MVP
Author of
Microsoft Outlook Programming - Jumpstart for
Administrators, Power Users, and Developers
http://www.outlookcode.com/jumpstart.aspx
> where is the data stored ???
> in the outlook .pst file ???
> I am using BCM on win2k3 with terminal services and need to know exactly
> where everything is being stored and how to totally delete/eliminate some
> datasets.