Toolbar linked to .dll

[Spike]

Outlook 2000
Windows 2000 SP4

I don't use the Standard Toolbar (hidden) but rather a Custom Toolbar. I
have installed a COM application that puts a link button on the Standard
Toolbar and I would like to know how to put that button on the Custom
toolbar. When I get the description for the button under Customize, it says
"runs an add-in program or custom macro." The actual application under COM
is a .dll rather than an .exe file.

Anyone know what I need to do in order to get this executable on my Custom
Toolbar?

Thanks.

Spike