I realize LnS is a pure firewall, but can be configured to be very protective if done right. Its light, fast, and simple for the most part. PrevX covers the keylogger and anti screen capturing that Panda Cloud Pro and LnS dont cover. However OA can cover both LnS and PrevX SOL. And its not your standard FW. Im one of those people that believe less is more. By going to OA I could remove PrevX SOL and LnS from startup and drop from 2 startup programs to one. However Ive never used OA since I run x64 and the last time I checked it out it wasnt x64 compatible. If I went after a version Id look at the free version. However I also have questions regarding version differences between OA free and OA Premium. Lets start with the differences between OA Free and OA Premium. What does Advanced Mode do that Standard Mode cant? What can Autostart Protection do that the Limited Autostart Protection cant? What exactly is Transparent blocking? And last but not least how effective is the Phishing filter and DNS Spoofing Protection? I assume these last two will be covered under DynDNS. Id like to here comparisons between the two different options as far as usability, resource usage, effectiveness, ease of use, etc.