You can have the cron execute dnetc at startup for you. Create a text file in TextEdit (be sure it's not rtf) and put in it:
Code:
@reboot cd /Applications/dnetc;./dnetc -quiet &
Change the path to the dnet client to whereever it is for you. You can name the file anything you want, and save it anywhere you want.
Now in the terminal navigate to that file and type
Code:
sudo crontab (insert filename here)
It'll ask you for your user password, so enter it. Now that task has been added to the cron's list of duties for the root user. So it will run even when no one is logged in.
To view the list of duties for the cron type
and to clear that list type
Hope that works for ya.