Rating: 
Summary: Necessary for VxD beginner, good for all
Review: This book is necessary if you are new to VxDs, easy to read from cover to cover. I recommend it.
It has good examples for experienced VxD programmers. Other books are needed for someone writing advanced VxDs.
Warning: I found both obvious and subtle errors in some of the examples. They don't all compile and work without changes.
Rating: 
Summary: No Common Class Driver Documentation, good Theory
Review: Unfortunately for me, the book is more an overview than a practical book ; it is focused on Custom Drivers; it doesn't explain how to write a common class device driver (for instance, a display, a printer or a keyboard device driver). There should be coverage for standard classes (the most common class of driver), what interfaces windows defines and expects to be used for standard classes, etc. I think that _every_ book adds knowledge though, and this book has very good theorical explanations.
Bottom Line: it's not the book for you if you are attemting to write a common class driver.
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