What you consider today "Windows" is actually Windows NT. Dave Cuttler was a lead architect of both NT and VMS.

https://en.wikipedia.org/wiki/Dave_Cutler

Cuttler and a core of VMS team exited en masse to work on NT. In fact, he coined the term "WNT" as a play on "VMS", each letter is a successor to the corresponding one. (c.f. IBM <==> HAL)

http://windowsitpro.com/windows-client/windows-nt-and-vms-re...

Dave Cutler was a lead for VMS, then left DEC for Microsoft and led the development of Windows NT.