《COM本质论》不是一本供新手学习的书，也不是一本教授如何开发COM组件的书，而是一本帮助读者在一定的基础上继续提高对COM的理解的书，许多内容需要一定的经验基础才能看得明白- COM Essence is not a book for novice learning, nor is it a book on how to develop COM components of the book, but to help the reader on a certain basis to conti