Windows NT 4.0 build 1381.1 (SP0B)

Windows NT 4.0 build 1381.1 (Traditional Chinese SP0B) is a post-RTM build of Windows NT 4.0. Chinese Traditional of this build was uploaded by the Chinese community BetaWorld on 27 August 2022. Korean version of this build was uploaded to BetaArchive FTP on 17 September 2022 alongside 2000 build 2031 and 98 build 1650, both in the Korean language. Prior to its publication, Chinese Traditional of this build was found by BetaWorld user 随便问我 on 21 March 2021.