I'm not sure what BIOS you have, but I know that Award BIOS has a flash
utility that has enough command line options to backup and flash a bios from
autoexec.bat (DOS boot disk) 

Quite useful when if your BIOS doens't flash properly or you flash the wrong
version, even if you hose it there is part of the BIOS that will still look
at the floppy drive and run autoexec.bat if it exisits. This feature saved
my computer a couple times. :)

--
Andy Zbikowski, Sys Admin   | (WEB) http://www.ltiflex.com
LTI Flexible Products, Inc. | (PH)  763-428-9119 (EX) 132
21801 Industrial Blvd       | (FX)  763-428-9126
Rogers, MN  55374           | (PCS) 612-306-6055