How can i track COM+ events call with Delphi?

I have a huge application that was made with COM+ Objects and i want to track/log the call of events of these components. The objective is to find the problems and refator that methods. I have found some documentation of API like this http://msdn.microsoft.com/pt-br/library/dd179218(v=VS.85).aspx, but the only thing i could is to get the name of the pools in com+.