Run Linux on Windows or other OSes, natively.
Cooperative Linux is the first method for optimally running Linux on Windows and other operating systems natively. It is a port of the Linux kernel and support code that allows it to run cooperatively without emulation along with another operating system.
QNAP GPL Source
GPL source for QNAP Turbo NAS
BeamOS is a virtual Linux application operating system for Windows. Development of BeamOS began in April, 2015. The goal of BeamOS is to introduce Windows users to Linux. BeamOS uses DALEK kernel, also made by HackerGamerLV. It also has a special graphical interface WDE.
Simple, Fast, Advanced... ZintoriOS. Made in Wellington, New Zealand