SplitButtonPopup is not supported only CommandBarPopup, CommandBarButton and CommandBarComboBox.

--
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

"Tom at GSD" wrote in message ...
Hi,

I have been looking throughout the web trying to find a document that states
what button types can be created for Outlook Plug-ins and have not found
anything official that positively states the allowed button types for a
plug-in. I would like to create a button type of "msoControlSplitButtonPopup"
but this appears as though it is not possible. Does anybody know a way to
create a button like the "new" or Send/Receive" button?

Thanks