Filtergraph (ActiveMovie) help please

My question is:

How do you make a filter in vb?

Its possible, though not terribly easy, to connect the pins of various filters together to playback a given file format in vb but I would like to think that I could create a directX vb App that would support its own renderer filters, rather than one that have been made in C/C++

Hope someone can shed some light on this:

For example, if I make a project that contains a directsound (dx8) buffer , can I somehow connect to this using the filtergraph manager - in vb?


Thanks

Would be nice if you could help coz questions like this on here often go unanswered