Windows NT 3.1 build 251

1.251
Build of Windows NT 3.1
Screenshot
OS familyWindows NT
Version number1.0
Build number251
Architecturex86

Windows NT 3.1 build 251 is a build of Windows NT 3.1, which was mentioned in the file TEXTPERF.XLS from the Windows NT 3.5 build 782.1 source code. This build was being tested on 9 February 1992, so it was almost certainly compiled shortly before that.