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
Technical features new to Windows Vista Next Generation (CNG). CNG is an extensible, user mode and kernel mode API that includes support for Elliptic curve cryptography and a number of newer algorithms that are part of the National Security Agency (NSA) Suite B. It also integrates with the smart card subsystem by including a Base CSP module which encapsulates the smart card API so that developers do not have to write complex CSPs. Technical features new to Windows Vista Windows Vista (formerly codenamed Windows "Longhorn") has many significant new features compared with previous Microsoft Windows versions, covering most aspects of the operating system. In addition to