Dell Genuine Windows Vista Business Edition Overview Windows Vista known as Longhorn prior to its release has been developed by Microsoft to be used on home and business desktop and laptop systems. Windows Vista was released 4 years after the release of Windows XP which is considered as the most successful and reliable Windows operating system. Windows Vista Business has improved many features within Windows XP and have fixed various system crashes and bugs within Windows XP. You can also download Dell Genuine Windows XP Pro SP3 OEM ISO. Belizio Regular Font here. The most notable change in Windows Vista is its looks. The graphical user interface of Windows Vista has been completely overhauled and some new features have been included in it. The search option has been improved substantially and you can search your required data within no time.