[Unix] GnuWin32
GnuWin32 provides Win32-versions of GNU tools, or tools with a
similar open source licence. The ports are native ports, that is
they rely only on libraries provided with any 32-bits MS-Windows
operating system, such as MS-Windows 95 / 98 / 2000 / NT / XP
http://sourceforge.net/projects/gnuwin32/
http://sourceforge.net/projects/gnuwin32/