The Windows XP kernel includes a number of improvements over Windows 2000 that promote better scalability and overall performance. This article covers these changes and explains how they improve startup time, increase registry size limits, and promote more efficient disk partitioning. Windows XP provides support for 64-bit processors, which is covered here along with a discussion of how side-by-side assemblies end DLL Hell. Also new in the Windows XP kernel is a facility that will roll back driver installations to the Last Known Good state of the registry, making driver installation safer. Other topics include the new volume shadow copy facility, which provides for more accurate backups and improvements in remote debugging.
Mark Russinovich and David Solomon
MSDN Magazine December 2001
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