Clemens talks about his frustrations over the last year with getting Aspect Oriented Programming (AOP) to work properly with Enterprise Services (i.e. managed code on top of COMPlus). He has all but given up in his attempts with AOP and ES.
This post represents one of the best summaries of the infrastructure of COMPlus/Enterprise Services as well as some of the issues I have seen brought up by Craig, Tim, John, and others in my own study of AOP as applied to COMPlus/Enterprise Services.
I also appreciate Clemens' link to the patent documents for COMPlus. Though "legal" jargon, its a great read to further get into some of the infrastructure. Take a look!