speedLinux

SpeedLinux is a customized coLinux. coLinux is not a VM but it can be used in the same way.

BootMed

The BootMed Live CD is an Ubuntu Remix for those new to Linux.

Cash is a cross-platform implementation of Linux commands in pure Javascript.

Cygwin is a set of tools that provide Linux and POSIX functionality to Windows.

Knoppix is an operating system based on Debian designed to be run directly from a CD / DVD (Live…

A Cygwin-derived software distro for Windows using Arch Linux’s Pacman

Test your LiveCD on Windows without burning it to a physical CD-Rom

It is a generic machine emulator and virtualizer.

Cooperative Linux is the first working free and open source method for optimally running Linux on Microsoft Windows natively.

Gow (Gnu On Windows) is the lightweight alternative to Cygwin.