The behavior can't be modified and is controlled by the message format -- RTF vs. HTML or plain text.

--
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

"Jackie" wrote in message ...
When I add an attachment, while running the form, the message box splits and
there is only a very short space for attachments and you can't see them
all.. How do I modify the message field to not split and allow the
attachments to be in the actual message field?