Personally, I would run your flash program from a bootable floppy. I wouldn't trust flashing from within WinXP. Probably would be ok, But I like to remove any possible variables, programs, or OS weirdnesses that could royally bone aa BIOS flash and render you useless. I HAVE done it in Win98 with good results, but we are talking about WinXP here and since software is just catching up to speed with the OS, Better to be safe than sorry.