COM/IP, DialOut/EZ and Serial/IP redirectors are kernel-level device drivers, therefore they can not be specified as exempt applications in most firewall programs, as they are part of the Windows System Process.The License Manager and TacServe are Windows Services that can be specified when configuring a firewall.The Tactical Software Installer will modify the Microsoft Windows Firewall settings to allow our products to work correctly. However, incoming TCP connections to Serial/IP or COM/IP still need to be added manually.