This latter option places great demands on the available memory. A CIF file should be used when e.s.d.'s on the derived geometry parameters are desired.
Most features are currently available only for non-protein structures.
It is identical to the UNIX version, apart from the points noted below. IBM-compatible PC is recommended, with at least 32 Mb of RAM memory. The program is provided free of charge for academic, scientific and non-commercial purposes , provided usage is acknowledged. Please email me if you download the program and find it useful, so I can inform you of major updates. You need to download both programs.