
Windows 7 (previously codenamed Blackcomb and Vienna) is scheduled to be the next major client version of Microsoft Windows, expected to be the successor of Windows Vista. Sources indicate that Windows 7 should be finished in the second half of 2009, three years after Windows Vista.The client versions of Windows 7 will ship in both 32-bit and 64-bit versions, even though the server counterpart (which will succeed Windows Server 2008) will be exclusively 64-bit.
Microsoft is maintaining a policy of silence concerning discussion of plans and aspirations for Windows 7 as they focus on the release and marketing of Windows Vista,though some early details of various core operating system features have emerged. As a result, very little is known about the feature set, though public presentations from company officials have disseminated information about some features.
Circa 2000, Windows XP and its server counterpart Windows Server 2003 (codenamed Whistler) were planned to be followed-up by a major release of Windows that was codenamed Blackcomb (both codenames refer to the Whistler-Blackcomb resort) and scheduled for a 2005 release.Major features were planned for Blackcomb, including an emphasis on searching and querying data and an advanced storage system to enable such scenarios. In this context, a feature mentioned by Bill Gates for Blackcomb was "a pervasive typing line that will recognize the sentence that [the user is] typing in.
Later Blackcomb was delayed and an interim minor release, codenamed "Longhorn", was announced for a 2003 release.Even more delays later, Longhorn became a major release and accumulated many features initially planned for Blackcomb, including the advanced storage system (titled WinFS) as well as the searching system (christened Windows Search). Later Longhorn shedded a few features—including WinFS but retaining the searching capabilities despite—en route to a 2007-launch as Windows Vista.
In the mean time, Blackcomb was given a new codename—Vienna.However, following the release of Windows Vista, it was confirmed by Microsoft on July 20, 2007 that "the internal name for the next version of the Windows Client OS" is Windows 7.
The first known build of Windows 7 was identified as a "Milestone 1 (M1) code drop" according to reports sent to TG Daily and has a version number of 6.1.6519.1 according to various reports. It was sent to key Microsoft partners in January 2008 in both x86 and x64 versions.Though not yet confirmed by Microsoft, reviews and screenshots have been published by various sources.Features described include Gadgets being integrated into Windows Explorer, a Gadget for Windows Media Center, and a new XPS Viewer. An included feedback tool reportedly lists the ability to store Internet Explorer settings on a Windows Live account, Windows Presentation Foundation versions of Calculator, Paint and WordPad, and a 10 minute install process as coming features.











