How to remotely enable the auto update option for Flash on Windows 7

About 2/3rds of our company is currently auto-updating Flash Player successfully.  It appears the rest of the Flash installs are configured to Notify when updates are available - and users aren't updating.  Where is the setting stored on a Windows 7 workstation to Allow Adobe to install updates?  Is there a way to configure this remotely (i.e. a registry setting or config file that can be copied to the workstation)?   I haven't been able to find what change is made to the workstation when the Control Panel Update option is changed in the Flash Player applet.  Thanks in advance.