I think that's normal behavior. The tab index doesn't seem to affect the message body control.

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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
> While making a Custom Form in Outlook, I tried to change the tabindex so,
> that the cursor would appear in the Message part of my Custom Form.
>
> Even though Tabindex is set to 0, no cursor appears in my Message. What am I
> doing wrong? Is it even possible?