Windows NT 3.1 PDK 2 RC4 build

PDK 2 RC4
Build of Windows NT 3.1
Screenshot
Release nameRelease Candidate 4
OS familyWindows NT
Version number1.0
Architecturex86

Windows NT 3.1 PDK 2 RC4 is a build of Windows NT 3.1, which was mentioned in the file TEXTHIST.XLS from the Windows NT 3.5 build 782.1 source code. This build was being tested on 25 November 1991, so it was almost certainly compiled shortly before that.