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1

ReactOS

An operating system based on the best Windows NT design principles

ReactOS is an open source effort to develop a quality operating system that is compatible with applications and drivers written for the Microsoft Windows NT family of operating systems (NT4, 2000, XP, 2003).

149 Reviews

Downloads: 5,654 This Week

Last Update: 2026-01-23
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2

FreeOS/1

FreeOS/1 is a Free, Open Source, FreeDOS based Free and Open Source Alternative OS, with open source Microsoft Windows compatibility using HXDOSExtender KernelEx,and ReactOS source code. FreeOS/1 will include new technologies and will be easy to use

Downloads: 2 This Week

Last Update: 2013-05-16
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3

CK 64 Kernel

The CK 64-Bit Kernel Operating System

This project is a implementation of layers. Use Virtual machines & virtual adapters alike an onion! Another operating solution instead of Microsoft Windows Server operating system. It is to be used via remote controlling. The special new "Cktool32" will make it easy to handle *Ck64Krnl*.

Downloads: 0 This Week

Last Update: 2013-05-30
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4

ReactOS Synthesis Project

ReactOS Synthesis Project (RSP) is aimed at combining a Microsoft Windows installation with ReactOS system files, so as to replace and complement/extend functionality. The advantages range from fixing issues to implementing desired functionality.

Downloads: 0 This Week

Last Update: 2013-04-23
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