I can't use Kerio 2.1.5 anymore because of BSOD issue when using vmware with guest OS networking enabled. And I can't use Kerio 4.2.2 because vmware guest OS cannot use internet after Kerio trial period expires--I found out the hard way when it expired today. I'm kinda tight on money right now so I need to stick with a free firewall. Being able to block specific applications/processes from reaching the internet is a must-have feature. And I can't afford to reinstall my entire OS so I need to stick with one that is well-behaved--or can easily be uninstalled without hassles if it satisfactory. Which do you recommend?