I put this together myself, tested many times with different variations, and it works well. All you have to do is run it and read the info on the screen.
It is self installing, settings entered, self-cracking, scheduled, and will search and insert a valid license for updating virus definitions whenever necessary; seemingly forever.
I left the option of rebooting manual. You should reboot after install, then update from the taskbar icon or wait for NOD to automatically do so.
Make sure you completely uninstall any previous ESET product. Then use the Antivirus Removal Tool to strip the reg entries. Don't use the Removal Tool before running NOD's uninstaller.
Credit should go to Nodster and Damian666, who no doubt spent countless hours working on the license workaround script.
There's always a noob screaming virus.
It may show up as a false positive from time to time.
You may want to add 'C:\Program Files\ESET' to NOD's exclusions list within ESET. ( Open the NOD Gui--> Press F5 --> look to the left side for 'Exclusions'... Select it. Then on the right side select 'Add', then point to the installation directory of ESET (Default is C:\Program Files\ESET) Select OK. Then OK again.