I'm trying to make my Zonealarm firewall to enable or trust only 3 connections but it dosen't work when i made the security to HIGH level
what i try to do is
1- access the internet
2- use the program on 192.168.0.245\mainmenu.exe
3- use the shared folder on the Lan 192.168.0.223\users

we don't have IT so i want to PREVENT other users accessing my PC by hacking programs or VPN or Ideal Admin etc ..

I made a password for my Admin Account and i installed ZoneAlarm and tried to add the point 2 & 3 to Tursted zone but when i change to HIGH Security level , it only allow internet connection

so is there any suggestions ?