On May 25th, Safer-Networking reported to Microsoft a false positive by Microsoft Windows AntiSpyware on immunization feature in Spybot S&D. They waited for Microsoft's response and finally got it on 22nd of June:


QUOTE
Microsoft answered: "The Microsoft AntiSpyware (beta) does not monitor changes made to the restricted zone of IE.". So this is great news to all our users who experience this bug: please don't believe your eyes! You're actually hallucinating and this message from Microsoft AntiSpyware did exist only in your minds.




More here!
http://www.safer-networking.org/en/news/2005-06-21.html