<Tr> <Td> <Ul> <Li> </Li> <Li> </Li> <Li> </Li> </Ul> </Td> </Tr> <Ul> <Li> </Li> <Li> </Li> <Li> </Li> </Ul> <P> Windows Vista is an operating system that was produced by Microsoft for use on personal computers, including home and business desktops, laptops, tablet PCs and media center PCs . Development was completed on 8 November 2006, and over the following three months, it was released in stages to computer hardware and software manufacturers, business customers and retail channels . On 30 January 2007, it was released worldwide and was made available for purchase and download from the Windows Marketplace . The release of Windows Vista came more than five years after the introduction of its predecessor, Windows XP, the longest time span between successive releases of Microsoft Windows desktop operating systems . </P> <P> New features of Windows Vista include an updated graphical user interface and visual style dubbed Aero, a new search component called Windows Search, redesigned networking, audio, print and display sub-systems, and new multimedia tools such as Windows DVD Maker . Vista aimed to increase the level of communication between machines on a home network, using peer - to - peer technology to simplify sharing files and media between computers and devices . Windows Vista included version 3.0 of the . NET Framework, allowing software developers to write applications without traditional Windows APIs . </P>

When did windows vista come out in us