David
The professional version does run in the background at all times, unless you disable it. It will give warnings that someone is attempting to access your system or has detected suspicious data coming into your system. It will block all activity untill told what to do. You can set it up any way you like in the set up section. It is a PITA to set up though.
Berny
Phormer Phantom Phixer
On the bench
TF-102A Delta Dagger, 32nd FIS, 54-1370, 1/48 scale. Monogram Pro Modeler with C&H conversion.
Revell F-4E Phantom II 33rd TFW, 58th TFS, 69-260, 1/32 scale.
Tamiya F-4D Phantom II, 13th TFS, 66-8711, 1/32 scale. F-4 Phantom Group Build.