Voici ce qu'explique le Readme de dms hdd explorer:
With release 1.3 of HDD Explorer the actual HDD Explorer ELF has been seperated from the loader. This means that you can replace the HDD Explorer ELF on the HDD with anything you like, and this will be loaded when you enter Dev.olution 2 mode. The filename of the ELF which is loaded
on startup is "boot.elf", in the partition "__boot". Another way of saying this is that "hdd:__boot/boot.elf" is loaded on startup. All you need to do in order to replace HDD Explorer with the application of your choice is replace this file.