Cygwin
Cygwin is a set of powerful tools to assist developers in migrating applications from UNIX/Linux to the Microsoft Windows platform. Cygwin delivers the open source standard Red Hat GNU gcc compiler and gdb debugger on Windows. In addition, it provides for a standard UNIX/Linux development environment on Windows including APIs and command shells. The Cygwin.dll library, included with Cygwin, delivers the interesting subset of UNIX SVR4, BSD, and POSIX APIs to enable quick ports of UNIX/Linux applications to the Windows platform.
Red Hat Cygwin is supported on Windows 2000, XP, 2003 Server, Vista, 2008 Server, 7, and 2008 Server R2. Cygwin is a 32 bit platform that will operate on both 32 and 64 bit Windows installations.
The Red Hat Cygwin official installation utility : ftp://ftp.ges.redhat.com/private/releng/cygwin-1.8/rhsetup.exe
