Are you using Avast since then???!!! And really no more infection...?
no, a short time, i used mcafee. (hadn't the info i have now)
but shortly after recognizing the huge speed drop i looked 4 something else.
then i used avira, which worked well some time on w95 these days. then had update issues with it and changed 2 avast. b4 i did a in depth lookup on any products available & tested them myself, as i didn't fully trust the av-tests out there. (some vendors pay 4 good results)
so, i would say from the early 90ies avast made it possible. *applause*
but please always consider a good av is only the starting point of any well protected system!!!
so i would say, since then: 98% avast 2% the rest...
asyn
edit: huh. 4got the second question... yes!!! no more infections of any kind on any of my systems since then.!!! (except some lso-cookies, which i also can handle now) counting and hoping and learning and protecting.