COM smart pointer / C++ smart pointer

VisualC++ generates COM reference counting smart pointers for every COM interface and Im wondering to what C++ smart pointer best compares to these COM smart pointers

for instance I have

IInterface *

and

IInterfacePtr

Anyone knows?

All smart pointers are generic. It doesn't matter WHAT you put into them, only HOW you use them. In other words, shared_ptr, unqiue_ptr and weak_ptr all work. It all depends on how you will use them, just as you would normal non-COM objects.