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Windows® Internals, Sixth Edition, Part 2 by David A. Solomon Mark E. Russinovich and Alex Ionescu

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File System Driver Architecture

File system drivers (FSDs) manage file system formats. Although FSDs run in kernel mode, they differ in a number of ways from standard kernel-mode drivers. Perhaps most significant, they must register as an FSD with the I/O manager and they interact more extensively with the memory manager. For enhanced performance, file system drivers also usually rely on the services of the cache manager. Thus, they use a superset of the exported Ntoskrnl.exe functions that standard drivers use. Just as for standard kernel-mode drivers, you must have the Windows Driver Kit (WDK) to build file system drivers. (See Chapter 1, “Concepts and Tools,” in Part 1 and http://www.microsoft.com/whdc/devtools/wdk for more information on the ...

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