Finally - here is a practical book that helps you write Windows VxDs and device drivers - without wasting your time in arcane API trivia! Writing Windows VxDs and Device Drivers is a true teaching book, not a compilation of Microsoft API references. Karen Hazzah guides you through a sequence of progressively more sophisticated drivers - each designed to illustrate a capability you'll need when writing your own high-performance drivers - and leads you into the mysterious world of VxDs, custom extensions to the operating system that will "go anywhere and do anything.": write a basic polled-mode driver in C - the easiest method for interfacing a windows application to a hardware device; write an interrupt-driven driver, also in C, for better performance and throughput than the basic polled-mode driver and write a VxD driver, a high-performance solution that also provides an interface for both Windows and DOS applications.