When I install the firewall, or virusscan (don’t exactly remember). The installer asks you if you wan’t to disable DEP (not really sure could also be windows file protection (:SHY)). But, that doesn’t work. DEP still seems to be activated, instead it even kills some programs (that is solved now). I suppose you wan’t to solve this, and that you might need more info. Place a post what you exactly need to solve this.