Hello Pondus
First I did what you told me, run http://www.bleepingcomputer.com/download/adwcleaner/ and after that i did run http://forum.avast.com/index.php?topic=53253.0, but “Smart Web Search”, is still on my computer, then you told me the following:

if you still have problems, attach the OTL diagnostic log and a removal expert will help you remove it, but I don’t have any idea what you are even talking about, can you please explain to me how to do that
Thank you beforehand
Jacques