Brian Valentine

H. Brian Valentine (born November 28, 1959 in ) was the Senior Vice President, Ecommerce Platform at until 2014. Previously he was a senior of the Windows Core Operating System Division (COSD) at Microsoft where he was responsible for overseeing the development of core Windows technologies such as networking and the kernel. He was also the executive primarily responsible for the development of Windows 2000 and Windows XP, and he held the same role for the majority of Windows Vista's development cycle.

On August 1, 2006, Microsoft announced that Valentine would leave his post as head of COSD and pursue other opportunities within the company after the release of Vista, which became available in November 2006. Jon DeVaan, senior vice president of Engineering Excellence, joined the Platform division and replaced Valentine. On September 1, 2006, this transition was accelerated when Valentine left Microsoft to take a position at.

Education
Valentine holds a B.S. in from.