Almost anyone who has been following the development of Windows 7 knows that it’s currently kernel version 6.1. But all that could be set to change, at least if an obscure MSDN page is to be believed.
In a page describing device installation with the Windows Driver Kit, the documentation shows “Msft.NT.7.0” being used as a label to specify drivers only for use with Windows 7.
Previously, Neowin reported that Mike Nash, Corporate VP of Windows Product Management, posted on on the Windows Vista Team Blog with the official explanation that Windows 7 would be kernel version 6.1.
Full Article – http://www.neowin.net/news/main/09/04/20/windows-7-to-also-be-version-7-of-the-windows-kernel