Some plug-in programs (such as Intrusion Defense Firewall) have agents that install on the endpoint's Windows operating systems. OfficeScan agent Plug-in Manager running under the process name CNTAoSMgr.exe manages these agents.
OfficeScan install CNTAoSMgr.exe with OfficeScan agent. The only additional system requirement for CNTAoSMgr.exe is Microsoft XML Parser (MSXML) version 3.0 or later.
Other plug-in program have agents that do not install on Windows operating systems are not managed from the OfficeScan agent Plug-in Manager. The Trend Micro Security (for Mac) agent is an example of these agents.