As regard this thread about SterJo Firewall https://www.wilderssecurity.com/showthread.php?t=310262 it looks that SJFw is already abandoned and no more presented on SterJo page. We can see brand new app called SterJo NetStalker that seems to be the successor of firewall. NetStalker id designed to control incomming connection, it show alerts about new connection and offers predefined two levels of security policies - "high" and "normal"...you can also create your own level and save it. In this app we can chose if the traffic will be filtered, not filtered or blocked. I noticed that NetStalker can not remember applications rules created while one session...after rebooting NS it always ask about permission for the connected apps, but remember (after saving of course) rules of policy. It's light in resources and seems to be useful tool especially because of portable form. Supported systems: XP, Vista, W7 http://www.sterjosoft.com/netstalker.html From help file
Netwalker hooks only on WFP, no driver, no selfprotection - i can kick it without having any restrictions. Compare to Windows 7 Firewall Control, has separated gui and systemwide service.
I think there is no needed to insert some services, files or registry entries if we are talking about portable app. In this context SJNS can be still useful app used on demand.
although there are 2 versions mentioned (setup and portable) there no difference between them exzept the archiving format exe<>zip. whatever this piece of crap ist useless from my point, either installed or portable, reasons above. eod for me