Windows Service Pack Road Map

Operating System Preceding Service Pack Current Service Pack and Date of Availability Next Update and Estimated Date of Availability
Windows NT Workstation & Windows NT Server 4.xx SP5 SP6a and SP6a SRP1
November 30, 1999 Windows NT 4.XX is now out of support and Microsoft is no longer producing public monthly security updates or service packs.2
Windows 2000 Professional & Windows 2000 Server, Advanced Server and Datacenter Server3 SP3 SP4
June 26th 2003

Update Rollup #1 for SP4
June 28, 2005 No further updates planned. Customers must be running SP4 to continue to receive monthly security updates.

Microsoft recommends updating SP4 machines to Update Rollup #1 (KB891861).
Windows XP Home Edition SP2 SP3
May 6, 2008 No further updates planned
Windows XP Professional SP2 SP3
May 6, 2008 No further updates planned
Windows Server 2003 SP1 SP2
March 13, 2007 No further updates planned
Windows Vista SP1
April 18, 2008 SP2
May 26, 2009 To be determined
Windows Server 2008 SP1 (Windows Server 2008 was released including Service Pack 1.) SP2 (May 26, 2009) To be determined

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Acquisitions & Assets of Top Companies

List of acquisitions by Microsoft

Yahoo! Acquired Companies

GE Energy:

GE Energy Acquires Sondex plc

October 26, 2007 — GE announced the completion of the Sondex acquisition. Sondex' technology is highly complementary with GE's current offerings and will expand the portfolio of equipment and services for our global customer base of oilfield service companies.

Incubator company acquired

International Monetary Systems Acquires Barter Network, Inc.

List of assets owned by Microsoft Corporation

Lists of corporate assets

Mitsubishi

List of assets owned by McDonald's

List of assets owned by Wal-Mart Stores, Inc.