File index: Astrolog 7.70 Windows Setup: ast77win.exe: Setup program to install Astrolog 7.70 for Windows ast77win.zip: Same as ast77win.exe, but in a zip file you unpack yourself. ast77win64.zip: Same as ast77win.zip, but contains a 64 bit Windows executable. ast77winxp.zip: Same as ast77win.zip, but contains executable for Windows XP. ast77cli.zip: Contains a Windows command line interface version of the program. Astrolog 7.70 Sources: ast77src.zip: Source code only (use to compile for Unix, Linux, Mac, etc). atlasbig.as: Larger atlas file containing 198K cities instead of just 20K. astephem.zip: More ephemeris files covering 10,800 years instead of just 600.