I am interesting in learning how to use COM. Can anyone recommend any good books on the subject? I have searched on amazon and it returned these . The number one result looks to have some good reviews and is quite reasonably priced, has anyone read this one?

Thanks

EDIT: Ok, seems the link didn't work. The number one result was 'Essential COM: Building Distributed Objects Using C++ and OLE (OBT)' if anyone has any experience of it.