Hello ... I noticed, that True Vector Service engine (or better - one certain thread of True Vector Service with priority 15 = high + 1 priority), which is bundled with the newest Zone Alarm 4.5.530 version consumes great amount of CPU, on Windows XP, I see also, that it consumes mostly CPU in Kernell mode constantly around 5 %, but sometimes up to 20 %, or even more !! The thing is that True Vector Service, from previous version Zone Alarm 3.7.211 - was at 0 % CPU all the time (and with CPU I mean LTCPU - Long Time Avereging CPU, which is calculated within Task Info 2003 program I am using to monitor system peformance) ... - I noticed also that it jumps to 30-35 % CPU, or even more, if I watch some picture in image viewer (Irfan View), and right-away, after I jump back to some other program True Vector Service CPU graph falls back to 5-10 % CPU (and hardly ever to 0, or 1 % CPU). As I remember there was no such behaviour in previous version of Zone Alarm - meaning, I even made some screenshots with previous version, when I compared how much RAM, CPU, GDI/User Objects, Windows Opened, Threads, Handles, etc. consumes Zone Alarm compare to Norton Firewall, so I was making those screenshots with the same Irfan View image viewer, so the same image viewer program was opened as today, when I noticed how much CPU consumes True Vector Service when running beside Irfan View, but on that screenshots (from old Zone Alarm) True Vector Service CPU usage was, as mentioned above 0 % !! - So when I had old Zone Alarm installed, the same program Irfan View was opened beside, but True Vector Service CPU was always 0 %, when I was viewing some image file, making screenshots, or even listen to mp3's with that very same Irfan View image viewer ... compare to now using new True Vector Service engine, when its around 5 % in Kernell mode constantly and so it becomes the most consuming CPU (Long Time Avereging) service on my computer, it consumes even more than explorer.exe !! The CPU consuming thread info: Thread ID: 1960 Base/Dinamic Priority: 15/15 ... which is equal as high +1 - 13 other threads has priority: 8/8 ... which is equal as normal - 1 thread has priority: 7/7 ... which is equally as normal -1 (not sure for this one if it is really equal exactly to normal - 1) - 1 thread has priority: 1/1 ... which is equally as Idle -1 (not sure for this one either) So, do you have any suggestions, for example which feauture to uncheck or something to minimize kernell CPU usage, etc.