Intercepting calls to COM interfaces

Contents1.       Introduction 2.       Some basic concepts of COM 3.       Practical example 3.1.    Approach #1: Proxy object 3.2.    Approach #2: Vtable patching 4.       Conclusions 5.       ReferencesIntroduction  In this article I’m going to describe how to implement COM interface hooks. COM hooks have something in common with the user-mode API hooks (both in goals and in methods), but