Wine Windows Compatibility Layer

Wine (Wine Is Not an Emulator) is a free and open-source compatibility layer that allows Windows applications to run on Linux, macOS, and BSD operating systems by reimplementing the Windows API. Originally created by Bob Amstadt in 1993 and maintained by Alexandre Julliard since 1994, Wine has become the foundation for many commercial compatibility solutions. Key features: Windows API reimplementation providing a complete implementation of the Win32 and Win64 APIs including user interface (GDI, USER, COM), networking (Winsock, WinINet), multimedia (DirectX, Direct3D via DXVK), and system services (registry, services, OLE/COM). Not an emulator: Wine translates Windows API calls to POSIX calls on-the-fly, eliminating the performance overhead and licensing issues of running a full Windows virtual machine. Windows binary execution: runs unmodified Windows x86 and x64 executables directly on the host operating system without requiring a Windows license or installation. Winetricks utility for installing common Windows redistributables and components (DirectX, Visual C++ runtimes, .NET Framework, fonts, DCOM). Wine prefix (WINEPREFIX) for isolated Windows environments, enabling per-application configuration and preventing conflicts between applications. Virtual desktop mode for running Windows applications in a managed window. DLL overrides for using native Windows DLLs when the reimplementation is incomplete or buggy. DirectX 9-11 support via built-in implementation or DXVK (Vulkan-based DirectX translation) for better gaming performance. Wine64 for running 64-bit Windows applications. Windows version masquerading (xp, win7, win10) for compatibility with version-checking applications. Cross-platform on Linux, macOS (including Apple Silicon via Rosetta), FreeBSD, and Solaris. Used as the foundation for Valve Proton, CrossOver, and PlayOnLinux. Supports over 30,000 Windows applications with varying degrees of compatibility.