CygWin currently doesn't support 64 bit files at all, so it's completely normal if cygwin-compiled rsync has "problems" over 2Gb... See the TO-DO list: http://cygwin.com/cgi-bin/cygwin-todo.cgi?20010220.112145 Or search the mailing list: http://sources.redhat.com/ml/cygwin/2001-10/msg00889.html They basically say: "there's no current support for 64 bit file lenghts, patch are welcome as long as they don't break anything" C ya -- Lapo Luchini lapo@lapo.it (PGP & X.509 keys available) http://www.lapo.it (ICQ UIN: 529796)