The AntiVirenKit 2005 is currently really the best antivirus on the market! I switched from Norton AntiVirus 2003 to the 2005 version of G DATA and feel safer now easy! In my opinion Norton already belongs to the past, because the detection rate from year to year will be worse. But not so when AntiVirenKit it Work with 2 again improved antivirus modules and provides maximum safety! This is confirmed by the numerous test victories of AntiVirenKit series. Very high up of course is the hochangepriesene of G DATA Security, really not a virus or trojan will pass the AntiVirenKit! The security level is adjustable (low, medium, high, highest), with the highest security level is useful really only for very fast systems, because of the resources which engulfs the program during the scan! Another plus point there for usability, everything is understandable therefore also easily for beginners! On Windows XP makes the AVK absolutely no problems, startup is running properly and the Service Pack 2 makes an even no spanner in the works! Norton found me NEVER a virus when I installed the demo from AVK, found this incredible 713 infected files that can be downloaded Trojans! That alone says it all, Norton was yesterday, the future belongs to AntiVirenKit of G DATA!