To change your Internet Shield firewall rules:

1. Double-click the blue F-Secure Internet Security icon on your Windows system tray at the bottom right corner of your screen to open the main menu.
   
2. Click the 'Internet Shield' tab on the main menu.
   
3. Click on 'Firewall . . .Configure' on the Internet Shield pane. The Firewall window opens.
   
4. Click the Add button on the 'Rules' tab. The Firewall Rule Wizard opens. Follow the wizard to define your own firewall rule(s).