Symantec on recently released o Norton AntiVirus 2009 Gaming Edition. Designed for online gamers it maintains full-scale antivirus and antispyware protection without interrupting game play.
The great thing about it is Gameing mode is activated automatically when a full-screen program is active, and hence it also avoids interrupting presentations and movies.Gaming Edition is available at $39.99 with the cost same as the non-gaming edition.
Norton AntiVirus 2009 already has what's called Silent Mode, which suppresses alerts and notifications. And NAV 2009 already runs background tasks only when the system is otherwise idle. The difference between Silent Mode and the new Gamer Mode is one of control. Gamer Mode additionally lets the user suppress Advanced Protection, Intrusion Prevention, and Automatic LiveUpdate. It can even turn off antivirus protection entirely, though of course this isn't recommended.
The other big difference is in the user interface. All the same controls are present as in the non-game edition, but the main window has a rugged, war-torn appearance that Symantec hopes will appeal to gamers. And naturally it offers the same lightweight resource usage as the non-gaming edition. According to Symantec it "installs in under a minute, uses less than 6 Mbytes memory, adds less than 1 second to boot time and averages scans in less than 35 seconds".