Steven Sinofsky is now vice president of Microsoft Office and Brian Valentine is vice president of Windows development.
Sinofsky, who joined Microsoft's Office Group in 1994, manages design and development of the Office suite and its applications, including Microsoft Word, Microsoft Excel, the Outlook messaging and collaboration client, Microsoft Access, and the PowerPoint presentation graphics program. Before joining the desktop applications group, Sinofsky helped coordinate technical strategy across the Microsoft product line.
An 11-year Microsoft veteran, Valentine manages the design and development of Windows 2000 operating systems and associated products such as Proxy Server and Systems Management Server.
Valentine was a project leader at Intel before joining Microsoft.