i'd like to create menus in a base toolbar like arcHdro tools or spatial analyst . how can i create menus with arcengine 9.3 in my toolbar ( the toolbar shows in arcmap )?
I solved it . first create a base toolbar in arcengine . then create a base menu and add base menu with additem method .for example additem("myproject.mybasemenu") in the base toolbar .you can add your commands in the base menu and then use this instruction . for more detail ... see this link