The PROXY Pro Master can be installed via msiexec command line strings and below you will find the syntax we recommend.
msiexec /qn /I Master.msi TRANSFORMS="Master.mst"
The above command installs the PROXY Pro Master with a transform file containing custom settings (i.e.license key), silently with no user interface (/qn). Initial installation testing can be done with the "/qr" flag instead so that the InstallShield wizard appears, allowing you to confirm that the install is successful.