Updated: July 13, 2020 (May 24, 2004)
Charts & IllustrationsPast Windows Server Versions
Windows 2000 Server and Windows Server 2003 are the only fully supported versions of Microsoft’s server OSs as of June 2004. Extended support for Windows NT 4.0 Server ends Dec. 31, 2004, and support other than security-related hotfixes requires a custom support contract.
As with other products, server OSs are supported with only the most recent service pack, but customers receive one year to migrate to that service pack. This means, for example, that Windows 2000 Server with Service Pack 3 will be supported until June 26, 2004.
| Product | Current Service Pack | Mainstream Support Ends |
Extended Support Ends |
Release History |
| Windows NT 4.0 Server | SP6a; Nov. 30, 1999 | Dec. 31, 2002 | Dec. 31, 2004 | Released: July 1996
SP1: Sept. 1996 SP2: Dec. 1996 SP3: Apr. 1997 SP4: Oct. 1998 SP5: May 1999 |
| Windows 2000 Server | SP4; June 26, 2003 | Mar. 31, 2005 | Mar. 31, 2010 | Released: Mar. 2000
SP1: July 2000 SP2: May 2001 SP3: Aug. 2002 |
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