I have just downloaded the trial version of TDS-3 and I am very impressed by its feature and its power. I have NOD32, Kerio, Proxomitron, RegProt and IEClean running resident in memory. As you can see I need a resident Anti-Trojan scanner. The unregistered version of TDS-3 does not include one. Would there be a noticeable system slowdown on a machine running TDS-3 execution protection, the mentioned programs and Win98 OS? The machine runs on a 1.2GHz Athlon with 256Mb of memory. Thank you.