Is there a way to force a silent install of Flash Player?

Hi,
We have an application that requires the latest version of Flash player, but not all users (remote) do the updates.
Is there a way to force a silent install, typically through a REGEDIT?
We have to contact each user through 'Go to Assist' once a year for audits, so the change can be made at that time. If the latest version of Flash is not installed, the application does not run properly and then the user calls the Helpdesk for assistance. Being able to force this update through the Registry would be a huge time saver and also cut down the amount of calls and user downtime.
Thanks for any help!
