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Vista Setback Timeline

Microsoft's acknowledgement Tuesday that Windows Vista won't be in consumers' hands until January 2007 isn't the first time that the Redmond, Wash. developer has put the brakes on its next generation operating system. Here's a look back at some of Vista's (n?e Longhorn's) stumbles and scrapes.

June 2001 -- Microsoft executive Jim Allchin confirms that "Longhorn" is the code name for the next edition of Windows after XP. In fact, Allchin says, Longhorn will be an interim release between XP and "Blackcomb," code name for an even-farther-out OS.

October 2001 -- Windows XP, the last major update to Microsoft's dominant operating system, ships.

April 2002 -- At WinHEC, Allchin says that Longhorn won't ship until the second half of 2004. The year before, Microsoft had touted late 2002 or early 2003 as its ship date. At the same time, Allchin denies that there will be a Windows XP SE (Second Edition). Ironically, Windows XP SP2 (Service Pack 2), which does, after all, appear, is used by Microsoft to explain future delays for Longhorn.

June 2003 -- Paul Flessner, senior vice president of Microsoft's Server Platform Division, lays out a roadmap at TechEd 2003 that includes Longhorn in the 2005 category. Later in the summer,analysts begin betting on 2006.

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