Hi all, i would be also interested if you can manage this ! As you surely know the libghemical works without any problems, i never managed to compile the plain ghemical version under cygwin. But i also never tried this very hard ... Regards, Joerg -- Dipl. Chem. Joerg K. Wegner Center of Bioinformatics Tuebingen (ZBIT) Department of Computer Architecture Univ. Tuebingen, Sand 1, D-72076 Tuebingen, Germany Phone: (+49/0) 7071 29 78970 Fax: (+49/0) 7071 29 5091 E-Mail: mailto:wegnerj@informatik.uni-tuebingen.de WWW: http://www-ra.informatik.uni-tuebingen.de -- Never mistake motion for action. E. Hemingway