Comodo AntiVirus is included in Comodo Internet Security. During installation, to install just the AntiVirus check “COMODO AntiVirus” but don’t check “COMODO Firewall”. This will install the stand a lone AntiVirus without the Firewall.
If you are a current Comodo Internet Security user, And you want just the Antivirus component of the suite, Just go to Start>Control Panel>Add/Remove Programs>Run Uninstaller for Comodo Internet Security. From here you check Add/Remove and here you choose to uncheck “COMODO Firewall”, And click next. Then in just a reboot you will have you’re stand a lone copy of Comodo AntiVirus, Without the need of a reinstall.