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E3/F-C2 Evaluation

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On April 28th, 1999, the UK Government announced that Microsoft® Windows NT® Server and Workstation 4.0 had completed a successful evaluation under the ITSEC regime at the E3/F-C2 level. E3/F-C2 is widely acknowledged to be the highest ITSEC evaluation rating that can be achieved by a general-purpose operating system.

This success follows a trend established by previous versions of Windows NT Server and Workstation. Windows NT 3.51 was successfully evaluated under the ITSEC regime at the same E3/F-C2 level, and Windows NT 3.5 was successfully evaluated under the US Government's TCSEC regime at the roughly equivalent C2 level.

Microsoft® Windows NT® Evaluation Status

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