@Anonymous Bastard
While I do not want to bash TrendMicro's HouseScan - it is still not possible to have your PC scanned for malware just by visiting a website. You still need to actively install some piece of software, be it ActiveX, a Java applet or whatever.
Just considering what it means to scan your machine for malware (namely reading every single file to do a heuristic comparison against known patterns), I would rather think that's quite a good thing (even if it won't work against dangerous semi-knowledge as exposed by most users...).
If that is not needed anymore nowadays, then Windows(tm) is worse than I thought...