Windows NT 3.1 build 340

Windows NT 3.1 build 340 is a build of Windows NT 3.1 and the first with a leaked server version. The server version was leaked on 2017-11-03 by The Distractor on BetaArchive. The early Server SKU refers itself as "LAN Manager for Windows NT".

This build is often mislabeled as build 319 or 328, which are versions of kernels that this build is based on.