Currently, I am quite happily running Defensewall with Prevx on several 32 bit machines. However, I need to set up another machine that will run x64, and I was wondering what solutions (comparable to Defensewall in effectiveness) exist? I realise there was a lot of discussion about this a while back, have things changed or improved? Anything new on the market? Or is patchguard still the bane of x64 security?