Minimal system requirements: PC under Windows NT/9X 16MB RAM This program runs on Windows 9x/NT and is able to make calculations of Fourier maps for crystallographic applications. The program FullProf creates the input files for FOURIER using JFOU=4, but the program is able to handle input files from other programs. The file 'gfourier_310.zip' should be unzipped in a temporary directory. Run the program "setup.exe" to properly instal the files. The final directory should contain the following files: gfourier.exe -> Graphic interface fourier.exe -> Calculation kernel (may be run as stand alone program in a DOS windows) gfourier.hlp -> Windows help file \doc\GFourier.doc -> Word 7 help document \examples\lamn300k.inp -> Input example on LaMnO3 (neutrons) \examples\lamn300k.fou -> Structure factors file \examples\sme.inp -> Input example \examples\sme.fou -> Structure factors file Use the program at your own risk. This version has included an option that allows the projection of several layers into a single one. Comments, suggestions or communication of bugs should be sent to: Javier Gonzalez Platas (Universidad de La Laguna) e-mail: jplatas@ull.es or to: Juan Rodriguez-Carvajal (Laboratoire Leon Brillouin) e-mail: juan@bali.saclay.cea.fr Good luck! Saclay, December 2, 1999