Unpacking GH_ObjectWrapper

Hi,

I'm looking to pass a COM object from component to component - I'm creating custom components for this in VB.NET.  The COM object is defined in a referenced library, and I am packaging it up in a GH_ObjectWrapper to get it to the next component.

I am however stuck on how to unpack it from the GH_ObjectWrapper type.  Once I have brought the GH_ObjectWrapper type into my next SolveInstance, how do I cast it to my special com object type again?

Thanks

Zak