Accessing a VBA module from a CCW.

I've got a nice little parsing library that I've written in .NET. I'd
like to use that parsing library in AutoCAD 2004. I know that I can do
this with a COM Callable Wrapper, or CCW.

I've made a CCW before, but I've run into a problem. The CCW needs to
be able to access the properties and methods in the VBA modules I have
in AutoCAD. (Specifically, I need to pass the results of the parsing to
the VBA modules in AutoCAD.)

What is the best way to do this? Do I need to use some form of
interprocess communication like sockets or pipes? Or is this included
in the .NET interoperability?

Thanks,

Scott Huey