A version of the Windows NT operating system | |
A screenshot of Windows NT Workstation 4.0 SP6, showing the Start menu and Windows Explorer | |
Developer | Microsoft |
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Source model | Closed source |
Released to manufacturing | July 31, 1996; 23 years ago[1] |
General availability | August 24, 1996; 23 years ago |
Latest release | 4.0 SP6a with Post SP6a Security Rollup (Build 1381) / July 26, 2001; 18 years ago[2] |
Platforms | IA-32, Alpha, MIPS, PowerPC |
Kernel type | Hybrid |
License | |
Preceded by | Windows NT 3.51 (1995) |
Succeeded by | Windows 2000 (2000) |
Official website | microsoft.com/ntworkstation/ (archived January 1999) |
Support status | |
Embedded | Mainstream support ended on June 30, 2003[3] Extended support ended on July 11, 2006[3] |
Server | Mainstream support ended on December 31, 2002[4] Extended support ended on December 31, 2004[4] |
Workstation | Mainstream support ended on June 30, 2002[5] Extended support ended on June 30, 2004[5] |
Service pack | Release date |
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Service Pack 1 (SP1) | October 16, 1996 |
Service Pack 2 (SP2) | December 14, 1996 |
Service Pack 3 (SP3) | May 15, 1997 |
Service Pack 4 (SP4) | October 25, 1998 |
Service Pack 5 (SP5) | May 4, 1999 |
Service Pack 6 (SP6) | November 22, 1999 |
Service Pack 6a (SP6a) | November 30, 1999 |
Post SP6a Security Rollup | July 26, 2001 |