Cygwin is a collection of tools which provide a Linux look and feel environment for Windows. Cygwin is a DLL (cygwin1.dll) which acts as a Linux API layer providing substantial Linux API functionality. The Cygwin DLL currently works with all recent, commercially released x86 32 bit and 64 bit versions of Windows.
Full Specifications
What's new in version 1.7.25
Version 1.7.25 allows application override of posix_memalign.
General
ReleaseSeptember 3, 2013
Date AddedSeptember 3, 2013
Version1.7.25
Operating Systems
Operating SystemsWindows 2003, Windows 2000, Windows Vista, Windows, Windows Server 2008, Windows 7, Windows XP