Windows NT 4.0 build 1381.335a

Windows NT 4.0 build 1381.335a is the Service Pack 6a release of Windows NT 4.0, which was released on 22 November 1999.

Changes
This build changes the latter year in  for both the Workstation and Server SKUs from 1996 to 1998, in a line with the Terminal Server Edition. The Server Enterprise Edition however continues to report 1997.