That was it! When plugged in enable the camera was checked. I unchecked it (on all 4 profiles), rebooted, and the camera stays disabled. The task scheduler has an entry P4G from ASUS that executes the batterylife.exe when a user logs on. The GUI pictured in your post is executed from P4GXui.exe. Without testing any further I'm guessing batterylife.exe reads a properties file that the P4GXui.exe writes.
Thanks for the help.