i have xp sp3 updated from sp2
the system has anti virus malware protection firewall
i use microsft security system and no more.
there is mrt.exe for a malicious software scan should ur Updates be automatic and daily then whats the worry?
a lot of these toys are flashy toys designed to do what your computer should already do should u have the firewall and good anti virus system always running.
waste of time i reckon
dont get sucked in.