I reveiced this same report from Spyware Doctor. Spy Sweeper, Spybot S&D, Kaspersky, Ad Aware and F-Prot reported the same system clean.

I tried this same test on a system without mIRC. It was reported clean. I did a fresh install of mIRC, ran mIRC and then ran Spyware Doctor - it then reported 18 registry keys as an "infection".