@nuhi I also seem to have a lot of problems while nliting sp3 3264. The comodo firewall addon v.276 didn't work and many other things were broken, like no iexlporer, no quick launch etc. (Addons may need a more refining as you said). But when I replicated same lastsession.ini with earliest sp3, ie, 3205 (as I have deleted my 3244 sp repository), I found I had no problem whatsoever which I faced using sp3-3264. I even tried not using IE7 and WMP11 addons also. Last_Session_3205_.ini