Windows NT 3.1 build 349

Windows NT 3.1 build 349.1 is a build of Windows NT 3.1, mentioned in an internal Microsoft document named  from the Windows NT 4.0 source code. Based on the included dates, this build was likely compiled in late November 1992 or December 1992.

Internal Beta       12/1/92       12/15/92        moved to 12/15 due to RAS integration problems and unavailablility of suitable NT build. Will go internal beta on NT build 349.