href="http://blogs.gotdotnet.com/anathan/">Adam Nathan. Adam is a test
lead on the CLR team and knows everything there is to know about interop between
managed code and unmanaged code. In fact href="http://www.amazon.com/exec/obidos/tg/detail/-/067232170X/ref=pd_sim_art_elt//104-1617495-9103919?v=glance">he
even wrote the book on the subject.
I am sure you will find his blog a very useful one.