You must be very lucky, or new to security software . In any case if you don't believe me, you can also look at the forums of these products or even forums of Wilders, you can see people do have false positives for all these products and more. So are they (and I) justified to tell you not to use these products because we have had FPs? Actually I think svv might be less dangerous simply because people have no idea how to remove your kernel dll. A false positive by other scanners can be dangerous because they offer to remove the file. Most times it's not too bad if they remove it, 1 in a 100 times it can cause serious damage. Of course some guy might panic and format, but the same thing is true of a FP by any scanner. One member here, recently did just that because of a CWShredder FP.