Maybe you should contact our skype support chat (sundtek) or give us a call.
This discussion is mixing up Dreambox with QNAP now.
For QNAP:
It depends which version you have, some QNAP Systems have a virtual Filesystem in that case our installer only installs the driver into memory. After a reboot the driver will be removed automatically (so you have to reinstall by yourself in that case).
For Dreambox:
it should just work as in the Link.