Hi Jacky,

I want to mount r/w the partition where my iso image is.

That partition is hda1, it is ntfs. I am using grub4dos to boot up via the boot.ini, and using gilles ruymbeke's minirt_usb6.gz
Works great. Except I can't find any way to modify any files on hda1 (ntfs.)

Grub4dos's menu.lst is there for instance, and rebooting into windows xp just to make a small change in a text file...that is outside of the iso.