Looking through the forums, it seems they are blaming each other...those at ZA are referring folks to ask at Spybot and vice-a-versa.
Spybot's immunization is passive protection, meaning it does not
run in the background. When you "Immunize", entries are added to the system Registry. This blocks cookies from some sites, places other sites in the restricted zone and blocks the download of selected ActiveX scripts. This feature is similar to SpywareBlaster in that it adds registry entries for bad sites which are then blocked by IE. In fact Spybot will tell you if SpywareBlaster is installed on your computer and that it offers more control over your settings by letting you add and remove sites very easily. Spybot blocks the download/execution ActiveX processes, blocks the storing of cookies and places a large number of sites in the restricted zone, by domain (site name) and by range (IP address). SpywareBlaster
does the same on a larger scale but places sites in the restricted zone, all by domain (site name).
is no longer recommending
Spybot S&D or Ad-Aware due to poor testing results. See here
- (scroll down and read under Freeware Antispyware Products)