4.0 SP3+ for x86 and Alpha platforms. This is the only known release to support Alpha. It included a demonstration version of the MKS Toolkit along with the following components: Telnet server Telnet client UNIX Utilities (from MKS) Client for NFS Server for NFS Server for NFS Authentication Windows NT to UNIX password-synchronization Help files and documentation 2.0 This second installment of SFU was released April 2000 and was also for English; however, a Japanese-language release appeared just two months later in June 2000. Both ran on Windows NT 4.0 SP4+ and Windows 2000 on x86 platforms with Internet Explorer 4.01+. SFU 2.0 supported the following UNIX versions: Solaris 2.6+, HP-UX 10.2+, AIX 4.2+, Tru64 UNIX 5.0+, and Red Hat Linux 5.1+. It included the following components: Server for NFS (NFSServer) Client for NFS (NFSClient) Gateway for NFS (NFSGateway) Server for PCNFS (Pcnfsd) User Name Mapping (Mapsvc) Server for NFS Authentication (NFSServerAuth) Server for NIS (NIS) Telnet Client (TelnetClient) Telnet server (TelnetServer) Password synchronization (PasswdSync) ActiveState ActivePerl (Perl) UNIX utilities (UnixUtilities) Cron service (CronSvc) Rsh service (RshSvc) There were subsequent updated OEM releases SFU 2.1, SFU 2.2, and SFU 2.3. 3.0 This version, released in May 2002, was the first release to include the Interix subsystem. Previously Microsoft had released Interix 2.2 (actually version 2.2.5) as a separate product around the same time frame as SFU 2.0. This SFU release included Interix release 3.0 (commonly called the "version" as reported by uname -r) with an internal Microsoft version of 7.0 that relates to internal build sequences. This Interix release contained significant technical extensions from the Interix 2.2 release such as a rooted file system and setuid functionality that were entirely based on the Softway Systems' Interix development codenamed "Firebrand". This was also released in English and followed by a later release in Japanese in October 2002, adding internationalization support. Both supported Windows NT 4.0 SP6a+, Windows 2000, and Windows XP Professional on x86 platforms with Internet Explorer 5.0+. The MKS Toolkit was no longer included. It included the following components: Base Utilities for Interix (BaseUtils; including X11R5 utilities) UNIX Perl for Interix (UNIXPerl) Interix SDK (InterixSDK; including headers and libraries for development and a wrapper for Visual Studio compiler) GNU Utilities for Interix (GNUUtils, about 9 utilities in total) GNU SDK for Interix (GNUSDK; including gcc and g++) NFS Client for Windows (NFSClient) NFS Gateway for Windows (NFSGateway) NFS Server