the german magazine " ct’ ", which is definitely a high quality magazine which is not understood by everyone, already discovered ways to get around the “big security functions” - which means that a virus could deactivate the anti-virus-tool, and tell windows that IT would be a anti-virus-tool using the API that MS does give to the programmers of anti-virus-tools…
or, you cannot simply disable the firewall (using the system-control icon), then a message box appears - but, if you disable the Firewall / Security-Center SERVICE (what a virus can do easily) this will not be recognizes until the next REBOOT…
there are many of those bugs in there, the maganine wrote a 16-page article about SP2…
and that was BEFORE MS did delay release of SP 2 once again…