Hello everyone!

I have a huge problem, I just can't figure this one out:
In my VB application I would like to run an exe-file (a lot of different viewers), and in that exe-file show one specific document. The exe-file (or viewer) must start in one specific area of my application.
How do I do this?
The viewers are not supported by any object in the references (at least I don't think so). I have tried CreateObject and GetObject and they don't work. It has something to do with dll, objects and automation........

Desperate for help!!!