DOS is before my time mate. i've got an old 286 at work that runs our windtunnel. it crashed the other day and i had a nightmare getting it running again. i've got to back up the hard drive to floppies (and then to cd and network disc), any recomendations for free software to use (something like pkzip or whatever). if you could mail me a program if you have one as well, that would be excellent.