Booting Knoppix4.0.2 from DOS

[ruymbeke]

I will go ahead and read it but I don't think it will help
as I am having and old bios that does not support booting from USB

I am not sure you have understood how I was trying to help you.
I used DOS to boot from my USB dongle and from DOS I boot Knoppix from the ISO.
In your case, since you already have your computer booting DOS,
you only need to get the second part which is to get Knoppix to boot from the iso file using DOS.
So to get that done, you can use the second part of my setup:
You will need to use at least my minirt_usb2.gz for the iso boot
and modify your configuration files, menu.lst for grub, or the bat file you use to launch lilo.
To achieve this, please get inspired by the configuration files I used in my USB boot setup.
Good luck,
Gilles