Kerio Personal Firewall
This free firewall for power users allows fine-tuning of application rules to restrict access to and from specific IP addresses and ports. It can be downloaded from http://download.kerio.com/dwn/kpf4-en-win.exe.

Limited free edition does not provide the content filtering capabilities such as blocking pop-up windows, ads, VB scripts, cookies, etc. and other extra features. Please see the comparison table for more details.
| Product: |
KPF4 - free |
KPF4 - full |
| NETWORK SECURITY |
| Packet filter |
YES |
YES |
| File integrity control |
YES |
YES |
| Application communication control |
YES |
YES |
| Application launch control |
YES |
YES |
| Intrusion Detection System |
YES |
YES |
| CONTENT FILTERING |
| Control of private information sent to the Internet |
NO |
YES |
| Script blocking (JavaScript, VB script) |
NO |
YES |
| Referrer and Cookies blocking |
NO |
YES |
| Ad blocking |
NO |
YES |
| Pop-up windows blocking |
NO |
YES |
| STATISTICS, LOGGING |
| Statistics of attacks and blocked ads |
YES |
YES |
| Automatic update checker |
YES |
YES |
| Extended logging |
YES |
YES |
| Syslog |
NO |
YES |
| Runs as Internet Gateway |
NO |
YES |
| ADMINISTRATION |
| Remote administration |
NO |
YES |
| Password protected configuration |
NO |
YES |
| SYSTEM REQUIREMENTS |
| Runs on Windows desktop OS |
YES |
YES |
| Runs on Windows server OS |
NO |
NO |
|