Microsoft has promoted Steven Sinofsky, an executive lauded for his role in leading the engineering groups behind the development of the company’s next operating system, to president of the company’s Windows division. In that role, he will also oversee the company’s group of Windows Live-branded online services, as well Internet Explorer. Windows 7 has not shipped but so far the new operating system has received positive reviews; a contrast to its predecessor Vista. Sinofsky (pictured left) will be one of six executives to hold the title of president at Microsoft (NSDQ: MSFT). Kevin Johnson, a previous president who oversaw the Windows business as well as much of Microsoft’s online operations, left last July. Release.