File is named setupeng.exe, size 16 059 876 bytes
Downloaded it from this link http://www.download.com/Avast-Home-Edition/3000-2239-10019223.html?part=dl-AvastHome&subj=dl&tag=button on page http://www.avast.com/eng/download-avast-home.html.
Going to try the http://files.avast.com/iavs4pro/setupeng.exe direct link next, through Firefox with no download manager.