This software should be used only by system administrators (or other people in charge). It should not be used to scan web sites outside of your direct control.
Only available for registered users.
If you use a personal firewall, you'll just have to let the firewall know that Syhunt is authorized to make connections to the Internet. However, some software firewalls do not handle high loads very well. It is not recommended to run both a personal firewall and Syhunt on the same machine.