COM is a very complex area in programming. So you need really to dig deep and learn a lot. I speak about more about months than weeks of learning. There is no way around and no easy fix - it just wont work. ;-)
May this fine article helps you
COM tutorial. But it is with the outdated IE 6. Newer IE have some more security restrictions. This is a showcase to want I mean, but I may not suit you
IE Drop-Down Button