For a tutorial in using the CRYS System, check out: http://www.ccp14.ac.uk/tutorial/crys/ Please note that for Powder Indexing options, you may like to check out the following web-page: Available Software for Powder Diffraction Indexing Including Reference List http://www.ccp14.ac.uk/solution/indexing/ This presently includes information on all the available Powder Indexing suites and software (binaries and source code): Indexing programs: ito, dicvol, treor, lzon, losh, cmpr, eflech/index, scanix, supercel Suites: CRYS, Winplotr, proszki, PowderX, Powder v 2.00 Lachlan Cranswick - CCP14 Secretary - 17th May 1999 l.cranswick@dl.ac.uk http://www.ccp14.ac.uk ccp14@dl.ac.uk