MinGW - COMPILADOR FORTRAN PARA WINDOWS Run the downloaded file (accept the defaults). The "MinGW Installation Manager" window should pop up (if not, go to C:\MinGW\bin and click "mingw-get.exe"). Check "mingw32-base" and "mingw32-gcc-fortran" by selecting "Mark for installation". Select the menu "Installation/Apply Changes". Open Notepad and enter the following program in the window: program hello print *,"hello world" end program Select "File/Save As ..." from the menu. Save in the directory "C:\MinGW\bin" with the file name "hello.f95" with "Save As type"" set to '"All files". On the Windows desktop, click "Start / run", enter "cmd" then, in the DOS window enter: "cd C:\MinGW\bin" then enter "gfortran hello.f95 -o hello.exe" then, if no error messages show, enter "hello". If you see "hello world" on the next line you have successfully installed the gfortran complier. Fonte: http://math.hawaii.edu/~dale/190/fortran/fortran-windows-installation.html