Updated: July 9, 2020 (February 27, 2006)

Past Windows Server Versions

As managing vice president, Rob Helm covers Microsoft collaboration and content management. His 25-plus years of experience analyzing Microsoft’s technology... more

Chart lists the past versions of the Windows Server OS, including support retirement dates.

Product	Current Service Pack	Mainstream Support Ends	Extended Support Ends	Release History
Windows 2000 Server	SP4; June 26, 2003 (rollup package with selected patches released Jun. 2005)	Ended June 30, 2005	2010 (est.)	Released: Mar. 2000 SP1: July 2000 SP2: May 2001 SP3: Aug. 2002
Windows Server 2003	SP1; Mar. 2005	2009 (est.)	2014 (est.)	Released: May 2003
Windows Server 2003 R2		2009 (est.)	2014 (est.)	Released: Dec. 2005

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