Don Box (Donald Box), CoFounder of DevelopMentor, a company specialised on Training COM, Windows Programming, Java and recently XML and .NET
Don has sort of god status among COM and Windows programmers, and written well known book titles like "Essential COM".
Don and DevelopMentor are famous for the unique (and original) style of their highly effective trainings.
Don Box is also working in the W3C XML Schema and SOAP (aka XML Protocol) working groups.