Microsoft® Windows® Internals: Microsoft Windows Server™ 2003, Windows XP, and Windows 2000, 4th Edition
by Mark E. Russinovich, David A. Solomon
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 functions that standard drivers use. Whereas you need the Windows DDK in order to build standard kernel-mode drivers, you must have the Windows Installable File System (IFS) Kit to build file system drivers. (See Chapter 1 for more information on the DDK, and see http://www.microsoft.com/whdc/devtools/ifskit ...
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