Linux on Windows

I was always looking for "Linux on Windows" and finally found this.
andLinux a Ubuntu based distro takes cooperation with Windows to a whole new level that requires no virtualization. andLinux integrates coLinux kernel. The coLinux project takes a stable release of the Linux kernel and ports it to run on Windows. That means that, unlike virtualization software, andLinux installs on Windows like any other application.
andLinux is available in two flavours -- a 665MB version that uses KDE and takes up 4.5GB of disk space, and a lightweight 143MB version with Xfce that uses 2.5GB on a hard drive. The developers recommend earmarking at least 192MB of RAM during installation for andLinux, but make sure you have enough memory left for Windows itself. andLinux will run only on 32-bit versions of Windows 2000, XP, 2003, and Vista, and your hard drive needs to be formatted using the NTFS filesystem.