Windows NT 3.51 build 980

3.51.980.1
Build of Windows NT 3.51
OS familyWindows NT
Version number3.51
Build number980
Build revision1
Architecturex86

Windows NT 3.51 build 980 is an unleaked build of Windows NT 3.51 that was mentioned in the file DOSDLL.INC from the Windows NT 4.0 source code.

; Beginning with NT 3.51 (build 980 or so), the front of the export table
; contains a signature and an export-table-version number.  This allows
; a DOS DLL to tell whether it has been loaded by an older application.