Working with an old PC, I was confronted with a HD that had no bootable partition. It contained data that I wanted to retrieve, without having to move that HD first into another PC. My idea was to use a USB key, so I started hunting around for a solution. I found this interesting info somewhere on the web, and you can run USB2.0 under DOS! This is how a Boot disk is setup to run USB 2.0 from DOS. Include in AUTOEXEC.BAT for CD MSCDEX.EXE /D:cd1 /L:Z Include in CONFIG.SYS for CD and USB2.0 Driver DOS = HIGH,UMB LASTDRIVE = Z DEVICE = himem.sys /testmemff ==>>must read: /testmem no space colon no space off <<== silly smilies :blackeye: DEVICE = USBASPI.SYS /v DEVICE = DI1000DD.SYS Rem Use whatever CD Driver works for you DEVICE = oakcdrom.sys /m:15 /d:cd1 You can get the Panasonic USBASPI.SYS Driver from the following: http://panasonic.co.jp/pcc/products/drive/other/driver/f2h_usb.exe Scroll down in the new created F2H directory. You can get the DI1000DD.SYS "motto hairu" DOS Driver from http://www.driver.novac.co.jp/driver/hd351u/mhairudos.zip Do NOT use the usbaspi.sys from mhairudos.zip, it is an older one! I'm sure a few of you can now make DOS backups onto external harddrives etc.! Additional info can be found here: http://www.theinquirer.net/?article=10215 If it does NOT work for you, DON'T ask ME!