Configuring OSFirewall protection

OSFirewall protection, which is enabled by default, detects when programs try to use your operating system to perform suspicious and potentially damaging actions on your computer. You can also configure various OSFirewall Special System Protections, which determine whether programs on your computer can perform specific actions such as modifying your Internet Explorer home page or installing ActiveX controls.

See OSFirewall alerts for more details about the kinds of behaviors and alerts that are associated with OSFirewall protection.

To configure OSFirewall settings:

Select Program Control.
In the Program Control area, click Custom.
In the Custom Program Control Settings dialog box that appears, select the OSFirewall panel.
Select or deselect Enable OSFirewall, as desired. (Note that, to configure any OSFirewall Special System Protections in the next step, you must first enable OSFirewall.)
Optionally, configure any OSFirewall Special System Protections. For any action in the list, click the State field and select Allow, Deny, Ask, or Use Program Setting. If you choose Use Program Setting, ZoneAlarm security software defers to SmartDefense Advisor settings or to your manual settings.
Click Apply to save the setting and leave the dialog open, or OK to save the setting and close the dialog.