ReactOS Homepage - Download 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. By davein Public bookmarkswith dedicatedeveryonefreeground-upmakingprojectreactossoftwareby 2 users