DirectX/D3D Problem

I've been having this problem for the longest time. And I have no idea where to look anymore for help. I am trying to send input to a DirectX application from a VB application. I've been at this for quite some time now and it's not working. If anyone can shed some light on the subject for me that would be awesome.

Most games worth their salt are going to be using DirectInput, which couldnt care less about windows messages. How you would go about getting around this, I have no idea. You might try creating your own DInput device, but where to go from there I dont know.

Z.