I installed this software from the CD of Personal Computer World December 2007. If you register online, you can get a 1 year license otherwise you can evaluate it for 30 days.
It offers on access (real-time protection), on demand as well as e-mail protection. You can specify proxy and mapped ports for POP3 & SMTP. E-mail clients include Eudora, Outlook, Netscape, Poco, The Bat, Thunderbird etc.
You can enable automatic update but update for new version requires user interaction. There is no option to scan a file or folder in Windows Explorer but you can do so within its own user interface.