Windows NT 4.0 build 1381.1 (pre-release)

Windows NT 4.0 build 1381.1 is the RTM build of Windows NT 4.0 that was recompiled. It was going to be the RTM build and was apparently already being shipped when a major bug was found, so it had to be recompiled.

Both Workstation and Server editions have been found and are available on the BetaArchive FTP server. Both editions were scene leaked within a few days in August 1996, soon followed by the recompiled build.

Kernel
This is the original compile, which has a missing dot on the boot screen and earlier file dates.