Does Lavasoft Personal Firewall protect against spyware, viruses and rootkits?

As such, Lavasoft Personal Firewall does not protect against spyware. However, if you bought your copy of the firewall bundled with the Lavasoft Ad-Aware SE antispyware, or if you already had Ad-Aware installed on your computer, you can start Ad-Aware from the Lavasoft Personal Firewall main menu. Next, scan your PC for spyware and unwanted adware, then remove whatever you wish to remove from the detected content.

Lavasoft Personal Firewall does not detect or remove computer viruses. For that, you need a dedicated antivirus program. Lavasoft Personal Firewall does not detect rootkits as well.

The primary purpose of a firewall is to control how your computer communicates with the Internet. Although the Lavasoft Personal Firewall does not remove viruses or spyware, it can be used to block them from communicating with the Internet. This works by using something called Application Control. You decide which applications are allowed to access the Internet and which are not. If an unknown application attempts to connect to the Internet, then the firewall will inform you, and you may take the appropriate action.

The firewall can also prevent malicious software from entering the system by blocking open communication ports. Some viruses/worms will use open ports to infect your system, but the firewall will stop this from happening by blocking these ports.