Although I don't know if you've considered the matter of you UI. If you plan
to use either CommandBarButton.Picture or .Mask, or supplying a ribbon
control image using code then you will need stdole.IPictureDisp and
therefore will need stdole.

--
Ken Slovak
[MVP - Outlook]
http://www.slovaktech.com
Author: Professional Programming Outlook 2007.
Reminder Manager, Extended Reminders, Attachment Options.
http://www.slovaktech.com/products.htm


"Ken Slovak - [MVP - Outlook]" wrote in message
...
You're correct, I examined that MSI in Orca and it doesn't contain stdole.
If stdole isn't listed as one of your dependencies for the project then
you can safely not install it.

--
Ken Slovak
[MVP - Outlook]
http://www.slovaktech.com
Author: Professional Programming Outlook 2007.
Reminder Manager, Extended Reminders, Attachment Options.
http://www.slovaktech.com/products.htm


"BatKing" wrote in message
...
Hi Ken,

One more question. Do I really need stdole? it seems I don't need it. I
uninstalled stdole from Global Assembly and it seems everything still
works
fine for my add-in. Of course Extensibility has to be here. Also when
installing Extensibility from extensibilityMSM.msi, stdole won't get
installed (but your previous response said that by installing
Extensibility
also installs stdole).

Thanks.