So you didn't try again after you long struggle with version 4
Perhaps the main problem with Outpost is that it's turning into a all-in-one security suite, despite being primary a firewall. I don't blame Agnitum though, most security software is going this way, especially firewalls.
And with people like the ones at matousec.com saying things like this:
The purpose of a personal firewall is to set up rules that limit applications to perform actions they should not be able to do and to allow actions that are expected from them.
which is plain WRONG (if you want an application monitor, buy yourself a license of System Safety Monitor or any other HIPS) the future is not very bright.