It comes with and is configurable on Security Center 9.3 (the latest 2009 version) but it can be installed as an extra on the following McAfee versions:
* 2008 McAfee® VirusScan Plus® / McAfee® Internet Security Suite / McAfee® Total Protection (SC v8.x)
* 2009 McAfee® VirusScan Plus® / McAfee® Internet Security / McAfee® Total Protection (SC v.9.0/9.1)
But it will NOT be configurable. The only way to turn it off is to uninstall it from Control Panel/Add or Remove Programs (XP), Programs/Uninstall a Program (Vista), where it will be listed separately.
To configure it on SC9.3, double-click the taskbar icon to open Security Center
Click Advanced Menu (bottom left)
Click Configure (left)
Click Computer & Files (top left)
Click Advanced (right)
Select Active Protection (left)
You can turn it off at the right.
To check which version you have double-click the taskbar icon to open Security Center and then click "About" at the lower right-hand corner.