I am on my fourth version of Sunbelt's Kerio Personal Firewall, 4.3.744. Ever since I originally installed this firewall and subsequent versions I have gotten nothing but BSOD's regardless of the version (in my earlier tech support foray they told me it was a known issue and the only way it could be fixed was an updated version; didn't work). The culprit every time has been the Kerio driver fwdrv.sys (it was the constant crashes that got me to TechSpot in the first place and peterdiva read my minidump). Anyway, I contacted Sunbelt Tech Support and they asked for a ton of computer spec information which I gave them. they were searching to see if there were other conflicts causing the crashes or if I set it up properly. Obviously my system is quite fine and I did everything correctly in installing and configuring this firewall because this is their "solution": Thank you for contacting Sunbelt Software! Try leaving HIPS disabled for a while and see if you receive any Blue Screens. You can just simply disable HIPS from the command line and see if you receive any errors. You can also disable NIPS and application behavior blocking and see if any of these help the errors. I apologize for the inconvenience this may have caused you. Could someone please define for me in greater depth the purpose of HIPS and NIPS? If I disable them isn't this defeating the purpose of this firewall, or at least severly limiting it?! is this really a solution? My gut tells me no. It may very well get rid of the crashes, but at what cost?