Sygate Personal Firewall Pro provides a multilayered shield of network, content, application, and operating-system protection for your PC. In addition to advanced firewall technologies, the Pro version integrates a world-class Intrusion Prevention System (IPS) that includes application-based IDS, DOS protection, and Trojan horse protection. Sygate Personal Firewall Pro is the ultimate desktop-security solution, trusted by professionals and relied upon by millions of users.