Hey guys, I found some software that enables you to run DayZ/ArmA without steam changing your CDKEY.
This is better (IMO) than the regedit not changing permission because you can set launch parameters easier.
This ISN'T my software so all rights go to SpiritedMachine
http://goo.gl/WDVXY Virus scan #1
http://goo.gl/ciUrv Virus scan #2
Download link = http://goo.gl/4tYxe << Permission from skydaddy to use link, so don't remove it