VisNetic Firewall - Version 1.01 VisNetic Firewall is the perfect firewall software solution for small to medium businesses who utilize Windows-based Servers, stand alone PCs, and/or LAN workstations that do not currently run behind a firewall solution. VisNetic Firewall provides protection against internal and external threats through its strong, secure packet-level Stateful Inspection. VisNetic Firewall is comprehensive intrusion protection.