Here are Microsoft's "availability and life cycle" dates from
http://www.microsoft.com/windows/lifecycle/desktop_LevelOne.aspx.
Legend:
Product Availability: The duration of the product's availability.
Mainstream Support: The period of availability for standard support
offerings (e.g., no-charge incident support, paid incident support, support
charged on an hourly basis, support for warranty claims, hotfix support, and
online self-help support information).
Extended Support: An extended period of assisted support, which may be
charged on an hourly basis and can include hotfix support. Microsoft will
not accept requests for warranty support, design changes, or new features
during the extended phase.
NOTE: when "extended support" ends, the product is considered "end-of-life"
and will no longer be supported by Microsoft.
Windows 3.00
Product Availability: June 1, 1990
Mainstream Support: June 1, 1990 - December 31, 2001
Extended Support: This product has reached the end of its life cycle; no
support is available.
Upgrade Information:
http://www.microsoft.com/windowsxp/pro/howtobuy/default.asp
Windows 3.10
Product Availability: March 1, 1992
Mainstream Support: March 1, 1992 - December 31, 2001
Extended Support: This product has reached the end of its life cycle; no
support is available.
Upgrade Information:
http://www.microsoft.com/windowsxp/pro/howtobuy/default.asp
Windows 3.11
Product Availability: November 1, 1993
Mainstream Support: November 1, 1993 - December 31, 2001
Extended Support: This product has reached the end of its life cycle; no
support is available.
Upgrade Information:
http://www.microsoft.com/windowsxp/pro/howtobuy/default.asp
Windows For Workgroups 3.10
Product Availability: October 1, 1992
Mainstream Support: October 1, 1992 - December 31, 2001
Extended Support: This product has reached the end of its life cycle; no
support is available.
Upgrade Information:
http://www.microsoft.com/windowsxp/pro/howtobuy/default.asp
Windows For Workgroups 3.11
Product Availability: November 1, 1993
Mainstream Support: November 1, 1993 - December 31, 2001
Extended Support: This product has reached the end of its life cycle; no
support is available.
Upgrade Information:
http://www.microsoft.com/windowsxp/pro/howtobuy/default.asp
Windows NT Workstation 3.1
Product Availability: July 26, 1993
Mainstream Support: July 26, 1993 - December 31, 2000
Extended Support: This product has reached the end of its life cycle; no
support is available.
Upgrade Information:
http://www.microsoft.com/windowsxp/pro/howtobuy/default.asp
Windows NT Workstation 3.5
Product Availability: September 8, 1994
Mainstream Support: September 8, 1994 - December 31, 2000
Extended Support: This product has reached the end of its life cycle; no
support is available.
Upgrade Information:
http://www.microsoft.com/windowsxp/pro/howtobuy/default.asp
Windows NT Workstation 3.51
Product Availability: May 30, 1995
Mainstream Support: May 30, 1995 - December 31, 2000
Extended Support: December 31, 2000 - December 31, 2001 (This product has
reached the end of its life cycle; no support is available.)
Upgrade Information:
http://www.microsoft.com/windowsxp/pro/howtobuy/default.asp
Windows NT Workstation 4.xx
Product Availability: July 29, 1996
Mainstream Support: July 29, 1996 - June 30, 2002
Extended Support: June 30, 2002 - June 30, 2003
Upgrade Information:
http://www.microsoft.com/windowsxp/pro/howtobuy/default.asp
Windows 95
Product Availability: August 15, 1995
Mainstream Support: August 15, 1995 - December 31, 2000
Extended Support: December 31, 2000 - December 31, 2001 (This product has
reached the end of its life cycle; no support is available.)
Upgrade Information:
http://www.microsoft.com/windowsxp/pro/howtobuy/default.asp
Windows 98
Product Availability: June 30, 1998
Mainstream Support: June 30, 1998 - June 30, 2002
Extended Support: June 30, 2002 - January 16, 2004
Upgrade Information:
http://www.microsoft.com/windowsxp/pro/howtobuy/default.asp
Windows 98 Second Edition
Product Availability: June 30, 1999
Mainstream Support: June 30, 1999 - June 30, 2002
Extended Support: June 30, 2002 - January 16, 2004
Upgrade Information:
http://www.microsoft.com/windowsxp/pro/howtobuy/default.asp
Windows 2000 Professional
Product Availability: March 31, 2000
Mainstream Support: March 31, 2000 - March 31, 2005
Extended Support: March 31, 2005 - March 31, 2007
Upgrade Information:
http://www.microsoft.com/windowsxp/pro/howtobuy/default.asp
Windows Millenium Edition
Product Availability: December 31, 2000
Mainstream Support: December 31, 2000 - December 31, 2003
Extended Support: December 31, 2003 - December 31, 2004
Upgrade Information:
http://www.microsoft.com/windowsxp/pro/howtobuy/default.asp
Windows XP Professional
Product Availability: December 31, 2001
Mainstream Support: December 31, 2001 - December 31, 2006
Extended Support: December 31, 2006 - December 31, 2008
Windows XP Home Edition
Product Availability: December 31, 2001
Mainstream Support: December 31, 2001 - December 31, 2006
Extended Support: Operating systems designed for consumers do not have an
Extended phase
------------------------------------
Steven Buehler
steven@sanctuaryweb.org
6677 Shepherd Oaks St
Lakeland, FL 33811-3156
tel: (863) 709-1151
fax: (209) 396-2513
------------------------------------
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