You want to install the Adobe Connect add-in in silent mode in an organizations where users aren't allowed to install via lightining download.
Use the Command Line parameters to do a silent installation, as follows:
/SP: - Disables the “This will install….. Do you wish to Continue?” Prompt at the beginning of the setup and continue with the setup Wizard directly.
/SILENT: - This shows the progress bar only to the user, which indicates that installation.
/VERYSILENT:- This neither shows the installation wizard or the progress bar and installs the Add-in Silently.