Hi... Anoymous_person adding sites to IE's trusted zone only allows Https (Hyper Text Transfer Protocol Secure sockets) URL schemes not Http. For example, F-secure online scanner site is http://support.f-secure.com/enu/home/ols.shtml and Kaspersky online scanner is http://www.kaspersky.com/virusscanner so added these sites is out of the picture of resolving this issue. Yea, I've tried Trend Micro's Housecall and It works when it wants to. Sometimes, Trend Micro freezes when it's scanning. Trend Micro's Housecall is not an efficient online virus scanner, but the only good thing it scans windows for vulnerabilities. The only good online virus scanners out on the internet are F-secure and Kaspersky because there're the only ones that can scan Rootkits, soon others will follow.