Windows Vista of January 2009, it had been announced that Vista usage had surpassed Microsoft's pre-launch two-year-out expectations of achieving 200 million users. At the release of Windows 7 (October 2009), Windows Vista (with approximately 400 million Internet users) was the second most widely used operating system on the Internet with an approximately 19% market share, the most widely used being Windows XP with an approximately 63% market share. In May 2010, Windows Vista's market share had an estimated range from 15% to 26%. On October 22, 2010, Microsoft ceased sales of retail copies of Windows Vista, and the OEM sales for
Management features new to Windows Vista into the operating system. Services for UNIX has been renamed "Subsystem for UNIX-based Applications", and is included with the Enterprise and Ultimate editions of Windows Vista. Network File System (NFSv3) client support is also included. However, the utilities and SDK are required to be downloaded separately. Also, the server components from the SFU product line (namely Server for NFS, User Name Mapping, Server for NIS, Password Synchronization etc.) are not included. Windows Vista supports scripting and automation capabilities using Windows PowerShell, an object-oriented command-line shell, released by Microsoft, but not included with the operating system. Also, WMI classes expose all