ReactOS aims to be binary-compatible with Windows applications and drivers, offering a free and open alternative to commercial Windows operating systems.
ReactOS is an open-source operating system intended to allow Windows applications and drivers to run natively on Linux/UNIX-like systems. The project aims to provide binary-level compatibility with Windows through clean-room reverse engineering of the Windows API. Development began in 1996 and continues actively today.
ReactOS features a Windows-like graphical user interface and can run many Windows applications designed for consumer and commercial use. It supports Windows network protocols and includes its own versions of Windows system components like the file explorer, registry editor, device manager and various games. Key components continue to be developed, focusing on compatibility and stability.
The goal of the ReactOS project is to provide an open-source drop-in replacement for Windows that is free to use and modify. It does not aim to add new features beyond what Windows already offers. The project is developed mainly by volunteers and relies on testing and user feedback to improve compatibility with an extremely broad array of existing Windows software and drivers.
ReactOS could appeal to users looking for a familiar Windows desktop experience but who prefer using open-source software. It requires relatively low hardware resources so can extend the usable lifespan of older PCs. Business and government users may also benefit from the customizability and auditability of an open-source Windows-compatible OS.
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