Performance of Jetico Personal Firewall
Like most advanced firewall software, Jetico is installed as a service to allow protection before Windows logon will load. The commit memory size and memory usage by 2 JPF’s processes are acceptable (10MB to 18MB) and did not slow down the computer even if it’s busy protecting the system while many applications are running.
The minor issues that I observed with Jetico are: It did not turn-off the built-in firewall in Windows Vista and there is a short freeze on applications that requires network connection, right after I finished answering the firewall alert. There is a short freeze also in launching programs that requires UAC but it does not occur all the time. During this review, the UAC prompt on Add/Remove Programs Utility in Windows (when I tried to remove another application) took a couple of minutes to appear but once I removed JPF, there is no such incident. Of course, this issue will not occur if UAC is not enabled. However, disabling UAC is not recommended.
It’s quite impressive that JPF is able to detect at once, the entire installed networking driver including the networking drivers that were installed by VMware Workstation. I only need to choose from the detected network interfaces on which to trust so Jetico will allow the connections.
A neat network traffic tab is displayed when you launched the UI of JPF so you can see the network traffic history. Other tabs are: Applications, Log, Groups and Configuration. I love it that JPF has the security policy selection in its notification tray’s icon. It’s quite handy so you don’t have to bring up the UI of JPF to view or change the security policy in use or to use.