You can't change the data type for any standard field. What you can do is set a formula for the control that shows the Subject property.

--
Sue Mosher, Outlook MVP
Author of Configuring Microsoft Outlook 2003
http://www.turtleflock.com/olconfig/index.htm
and Microsoft Outlook Programming - Jumpstart for
Administrators, Power Users, and Developers
http://www.outlookcode.com/jumpstart.aspx

"MHull69" wrote in message ...
I want the subject of a custom form to be a combination type. How do I (can
I) change the field type to combination, so that I can enter the formula?

Thanks
M