Interix

Interix is an optional, POSIX-conformant Unix subsystem for Windows NT operating systems. Interix is a component of Windows Services for UNIX, and a superset of the Microsoft POSIX subsystem. Like the POSIX subsystem, Interix is an environment subsystem for the NT kernel. It includes numerous open source utility software programs and libraries.

Interix versions 5.2 and 6.0 are respective components of Microsoft Windows Server 2003 R2, Windows Vista Enterprise, Windows Vista Ultimate, and Windows Server 2008 as Subsystem for Unix-based Applications (SUA). Version 6.1 is included in Windows 7 (Enterprise and Ultimate editions), and in Windows Server 2008 R2 (all editions).

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