Development of Windows Vista How to Find Build and Revision Number of Windows Vista or Windows Server 2008 Installed Development of Windows Vista Development of Windows Vista occurred over the span of five and a half years, starting in earnest in May 2001, prior to the release of Microsoft's Windows XP operating system, and continuing until November 2006. Microsoft originally expected to ship the new version sometime late in 2003 as a minor step between Windows XP (codenamed "Whistler") and Windows 7 (codenamed "Blackcomb" and "Vienna"). Vista's original codename, "Longhorn", was an allusion to this plan: While Whistler and Blackcomb are large ski resorts
Development of Windows Vista Pack 2 RC Escrow Build Number 6002.16659.090114-1728 (Version 275) Released January, 2009. Windows Vista Service Pack 2 Release Candidate Build Number 6002.16670.090130-1715 (Version 286) Released February, 2009. Windows Vista Service Pack 2 RTM Escrow build to Connect Beta Testers Build Number 6002.17043.090312-1835 (Version ???) Released March, 2009. Available and can be installed via Windows Update Windows Vista Service Pack 2 RTM Escrow Build Number 6002.17506.090313-1730 (Version ???) Released March, 2009. Leak to file sharing websites. Windows Vista Service Pack 2 RTM Build Number 6002.18005.090410-1830 Released 28 April 2009. Officially released by Microsoft via Windows Update on 26 May 2009. –