Cygwin is a Unix-like environment and command-line interface for Microsoft Windows. Cygwin provides native integration of Windows-based applications, data, and other system resources with applications, software tools, and data of the Unix-like environment.
- - Cygwin is the most popular Windows alternative to speedLinux.
- - Cygwin is the most popular Open Source & free alternative to speedLinux.
MinGW ("Minimalistic GNU for Windows") is a port of the GNU Compiler Collection (GCC) and GNU Binutils. It provides a complete Open Source programming toolset which is suitable for the development of native MS-Windows (x86) applications, which do not depend on any...
- - MinGW is the most popular Linux alternative to speedLinux.
MSYS2 is an independent rewrite of MSYS, based on modern Cygwin (POSIX compatibility layer) and MinGW-w64 with the aim of better interoperability with native Windows software.
Knoppix is an operating system based on Debian designed to be run directly from a CD / DVD (Live CD) or a USB key (Live USB), one of the first of its kind for any operating system. When starting a program, it is loaded from the removable medium and decompressed into a RAM drive.
TCC/LE is a complete CMD replacement, and is compatible with your existing Windows command prompt and CMD batch files, while adding thousands of new features.
Cooperative Linux (short-named coLinux) is the first working free and open source method for optimally running Linux on Microsoft Windows natively.
Cooperative Linux FeaturesDiscontinued
Not developed anymore, last news are from 2014.
A portable image of Ubuntu that could run in Windows as a native win32 application. Adds capabilities to execute Linux applications and integrate with the Windows desktop.
Portable Ubuntu Remix Features