The ReactOS® project is dedicated to making Free Software available to everyone by providing a ground-up implementation of a Microsoft Windows® XP compatible operating system. ReactOS aims to achieve complete binary compatibility with both applications and device drivers meant for NT and XP operating systems, by using a similar architecture and providing a complete and equivalent public interface.
Site Oficial: http://www.reactos.org
Download: http://www.reactos.org/en/download.html
Já alguem testou? Se realmente for estavel e correr os programas mais populares parece-me bem
Btw, file de instalaçao com 17MB!
