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
Development of Windows Vista system builders and OEMs to remove any user-visible aspects of the document format from the operating system. A few days later, it was announced that PC-to-PC Sync would not ship with Windows Vista. On June 14, 2006, Windows developer Philip Su posted a blog entry which decried the development process of Windows Vista, stating that "the code is way too complicated, and that the pace of coding has been tremendously slowed down by overbearing process. " The same post also described Windows Vista as having approximately 50 million lines of code, with about 2,000 developers working on the product. Build