Now that I have a suitable Fortran compiler I wonder what would be a good IDE. Anyway here is what I did: I am new to programming and command prompt usage. Here is the tutorial I used, then an added step that was necessary not covered in the link: http://www.neuralwiki.org/index.php?title=Guide_to_installing_Fortran_in_Windows_Vista (1). I downloaded/installed Gfortran and G77, setup PATHS, following instructions in link. Then I copied and pasted the following Hello World program in into the notepad text editor that comes with Vista: The indentation is 6 spaces. ____________________________________________ PROGRAM HELLOW WRITE(UNIT=*, FMT=*) 'Hello World' END ____________________________________________ (2). Saved the notepad doc as test.f and then in command prompt from the folder I saved it in typed ' gfortran test.f '. It created a .exe file called 'a' in same folder. (3). In prompt I typed ' gfortran test.f -o test.exe ' Then entered and then ran it by merely typing ' test '. This is what it looked like in prompt: > gfortran test.f > gfortran test.f -o test.exe > test Hello World So now that I have a working Fortran compiler what I would like to know is what would be the best IDE, figuring in the fact that I am a total novice.