Hi, floppybootstomp, Thanks for the reply Let me explain in details: I don't want to use CD or floppy. I have one Ethernet PCI card insltalled in DOS machine and one additional Ethernet card installed in XP machine. Basically, I have problem which software (and how) to install in DOS machine (card driver, protocol etc.) so DOS machine can comunicate through UTP cable with XP machine Miro