C-Free - A Professional Excellent C/C++ IDE

    http://www.cygwin.com/

or use the following link to download the setup program directly.

    http://www.cygwin.com/setup.exe

The setup program guide you to install Cygwin from internet. Please refer to following page for an internet setup help.

http://www.cygwin.com/cygwin-ug-net/setup-net.html#internet-setup

By default setting, the GCC compiler will not be installed into your machine. so in the "Select Packages" page, you must select to install it. In order to using Cygwin in C-Free with no trouble, you must install following 4 packages of Cygwin:

binutils
gcc
gcc-mingw
gdb

Following is the 4 screen shots corresponding to 4 packages:

binutils package	gcc packages
gcc-mingw packages	gdb package