What AV do you use alongside your AT and did your AT ever actually catch a trojan in real-time that got passed your AV? 1) I'm using Ewido alongside Kaspersky for about 1.5 years. 2) No, Ewido has never caught a trojan. Kaspersky has trapped all up to now. I also run BOClean now and then in real-time, but it does have high CPU spikes when I am running it - probably caused by conflicts with ProcessGuard. I use TDS-3 as a backup on-demand scanner.