How to create a toolbar button with a menu like Mail button?

From: Sérgio Pinheiro (sergiop.net_at_terra.com.br)
Date: 04/27/04 

Date: Tue, 27 Apr 2004 14:04:59 -0300

Hi Folks,

Does anyone knows how to extend a IE toolbar button, like the standard
"Mail" and "Edit" buttons?
I would like to insert a menu and if possible insert a textbox.
We already have a extra toolbar, for some functions, but We need to extend
this specifically area of IE.

Any real and specifically samples are welcome.

tks in advance...

Sérgio