I just started getting an unwanted security bar at the top of the IE6 browser window at certain websites, such as www.blackviper.com: "Your security settings do not allow Web sites to use Active controls installed on your computer. This page may not display correctly. Click here for options..." However when clicking on it, no options were displayed. Instead it just showed Information Bar Help. I tried the obvious things to try to isolate it, such as turning off the IE6 popup blocker, and lowering ActiveX security settings in internet options. No joy there, so they weren't the cause. Fortunately my memory is still fairly good, and remembered that I had just updated Spywareblaster and Spybot-S&D within the last 24 hours, making them possible culprits. To make a long story short, turns out this problem is apparently caused by Spywareblaster's restricted sites protection. Looking at the new blackviper website, there's an ad by google near the top which properties say it comes from: http://googleads.g.doubleclick.net/pagead/ads?client=ca-pub- (alternating with other ad subdomains too) Doubleclick.net is indeed the culprit as I proved by checking/unchecking the doubleclick.net restriction in Spywareblaster. Of course I have doubleclick entries in my HOSTS file too, but not that particular one, so added it, and that also prevents the problem. That's after I discovered that Spybot-S&D had mysteriously replaced my MVP HOSTS file with its own version at the last update, unknown to me. That's probably because after some experimenting I had forgotten to retick the box in Spybot-S&D to prevent modifications of the HOSTS file. A bit strange, but I restored my MVP HOSTS file and don't expect a repeat of the switcheroo. Googling I see that other people have had this problem over the years and never found a cure. Why it just appeared on my computer is somewhat of a mystery. I never saw it before. In any case the culprit appears to be the doubleclick.net restricted entry in Spywareblaster.