This flag tells Windows Installer to install the package that follows it. In this case, the package is SophosOutlookAddInSetup.msi . This flag is mandatory for a new installation.
Or with your tokens (if they are from a specific deployment tool): msiexec qr i sophosoutlookaddinsetupmsi t1 ec3 c1 i1 work
: Outlook may automatically disable add-ins that it perceives slow down startup times. Check Outlook under File > Slow and Disabled COM Add-ins to force-enable the Sophos Add-in via registry keys ( VSTO entries). This flag tells Windows Installer to install the
Replace INSTALLLEVEL and MODE with actual properties from Sophos documentation. msiexec qr i sophosoutlookaddinsetupmsi t1 ec3 c1 i1 work