Sorry for the double post...
I have made it ! ... kinda...
I tried to make it boot with Hiren's boot CD 7.8 (I know, it's an old version) and, well it worked, kinda...
I followed the instructions as described
here, it booted fine, but when I try to launch a utility, the process is a bit diffrent than what happens with the cd:
It seems that it creates a 102400 kb RAM drive instead of 50MB it does when used with the cd.
After the ramdrive is created, it says that "File command.com was not found" even though command.com is in my flash disk.
Anyway after that it starts copying all the .uha files.
After it is done with that, nothing else happens...
It would be nice to have a flash disk that boots Hiren's BootCD...
So any help here?
I tried editing some files to see if I could get it to work, but I didn't make it...