Will NT 3.51 drivers work with NT 4.0?

A. Standard NT drivers will automatically be upgraded from the NT CD. 3rd party drivers may not work and the supplier should be contacted. In particular Video drivers and Printer drivers were moved for NT4.0 from Win32 to the NT executive to improve performance and reduce memory use (basically moved from Ring 3 - user mode to Ring 0 - kernel mode). This does have the effect that a graphics driver could crash NT.

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