map --mem /DLC1/Boot/winvblock.ima.gz (fd0)
map --mem /DLC1/Boot/winvblock.ima.gz  (fd1)
map /XP.iso (0xA0)
checkrange 0x80 read 0x8280 && map (hd0) (hd1)
checkrange 0x80 read 0x8280 && map (hd1) (hd0)
map --hook
map --rd-size=2048
map --mem (rd)+4 (0x55)
map --rehook
write (0x55) #!GRUB4DOS\x00v=1\x00XP.iso\x00\xA0\x00
root (hd0,0)
chainloader (hd0)+1
clear
pause Keep the USB drive connected until Setup complete