Windows NT 3.5 build 688

3.5.688.1
Build of Windows NT 3.5
OS familyWindows NT
Version number3.5
Build number688
Build revision1
Architecturex86

Windows NT 3.5 build 688 is an unleaked build of Windows NT 3.5, mentioned in the file CHECKINS.TXT from Windows NT 3.51 build 896.1.

CHECKINS.TXT[edit | edit source]

Please make sure you use ExecMail.Exe from
NT build 688 or later.