speedLinux - SpeedLinux is a customized coLinux. coLinux is not a VM but it can be used in the same way.
Boot Camp - Learn how to install and use Windows on your Mac with Boot Camp. Find all the topics, resources, and contact options you need for Boot Camp.
MSYS2 - A Cygwin-derived software distro for Windows using Arch Linux's Pacman
QEMU - QEMU (short for "Quick EMUlator") is a free and open-source hosted hypervisor that...
coLinux - Cooperative Linux is the first working free and open source method for optimally running Linux on Microsoft Windows natively.
MobaLiveCD - Test your LiveCD on Windows without burning it to a physical CD-Rom