xlotlu writes "ReactOS was meant as a free and open-source operating system, binary-compatible with Microsoft Windows. But after 11 years in development it never reached a satisfactory level of usability. Due to lack of developers, reimplementing the Win32 subsystem proved to be a much too complex task, holding the project back. Given the deficiencies of the current implementation, developer Aleksey Bragin decided to rewrite it from scratch, drawing heavily from the Wine project. Bragin's announcement on the ReactOS mailing list makes a compelling argument for this decision."