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'''Windows Seven''' (previously known as "Vienna" [formerly known as "Blackcomb"]) is the name for the next version of [[Microsoft|Microsoft's]] [[Windows (operating system)|Windows]] [[Operating system|operating system]], originally announced in February 2000, but has since been subject to major delays such as [[Windows XP|Windows XP SP2]] and [[Windows Vista (which was also delayed by XP SP2). [[Microsoft]] has stated that "Seven" should be released on October 22, 2009. Work on Windows Seven began right after Windows Vista was released. As of May 2007, the name of the operating system used by Microsoft is unknown, though "Windows Seven" was noted in a job posting as a possible working name for the project, and is the only name by which the next version of Windows can currently be called.

'''Windows Seven''' (previously known as "Vienna" [formerly known as "Blackcomb"]) is the name for the most recent version of [[Microsoft|Microsoft's]] [[Windows (operating system)|Windows]] [[Operating system|operating system]], originally announced in February 2000, but was subject to major delays such as [[Windows XP|Windows XP SP2]] and [[Windows Vista (which was also delayed by XP SP2). "Seven" was released on October 22, 2009. Work on Windows Seven began right after Windows Vista was released. As of May 2007, the name of the operating system used by Microsoft is unknown, though "Windows Seven" was noted in a job posting as a possible working name for the project, and is the only name by which the next version of Windows can currently be called.

Microsoft has declined from discussing details about Windows Seven in public as they focus on the release and selling of Windows Vista, though some early details of a few core operating system features have surfaced at developer conferences such as WHEC in 2006.

Some early details of a few core operating system features surfaced at developer conferences such as WHEC in 2006.

== History & Development ==

== History & Development ==

The codename "Windows Blackcomb" was first assigned to Windows NT 6.0, an operating system that was planned to follow [[Windows XP]]. Blackcomb was supposed to be the successor to both Windows XP (Windows NT 5.1) and Windows Server 2003 (Windows NT 5.2). In late 2001 "Blackcomb" was said to be scheduled for release in 2005 then in August it was announced that a minor intermediate release, codenamed Windows "Longhorn", would release in 2002 to update the Windows NT 5.x line. In the years that followed "Longhorn" was transformed to include many features previously promised for "Blackcomb" and became Windows NT 6, and was given a name, [[Windows Vista]]. The codename "Blackcomb" was eventually discarded, however the ideas and features behind "Blackcomb" that were not included in Windows Vista got a new name codename Windows "Vienna". At the present, Windows Vista's successor (Windows Seven) is being planned as both a client and server release with a current shipping date of late 2009 - early 2010.

The codename "Windows Blackcomb" was first assigned to Windows NT 6.0, an operating system that was planned to follow [[Windows XP]]. Blackcomb was supposed to be the successor to both Windows XP (Windows NT 5.1) and Windows Server 2003 (Windows NT 5.2). In late 2001 "Blackcomb" was said to be scheduled for release in 2005 then in August it was announced that a minor intermediate release, codenamed Windows "Longhorn", would release in 2002 to update the Windows NT 5.x line. In the years that followed "Longhorn" was transformed to include many features previously promised for "Blackcomb" and became Windows NT 6, and was given a name, [[Windows Vista]]. The codename "Blackcomb" was eventually discarded, however the ideas and features behind "Blackcomb" that were not included in Windows Vista got a new name codename Windows "Vienna". Windows Vista's successor (Windows Seven) was released in late 2009.