What is ALLUSERS=1

ALLUSERS =1   -> Per machine installation
ALLUSERS=0    -> Per User Installation, application will be installed only to user who is installing application
ALLUSERS=2    -> Depending upon user rights application will be installed.

                                If the user is Administrator then app will be installed as ALLUSERS=1
                                If the user is non-admin then app will be installed as ALLUSERS=2