Introduction In my system, I found out that I needed to use the IMessageFilter – and don’t ask me how and why – so I looked in books on COM, newsgroups, and even here – but could not find a good example of how to use this interface. Maybe, this is something trivial for others, but anyway – after I found a good example (of a guy named Darma Sukla, from the MS team), the first thing that came thro..