I am runing Microsoft Outlook on Windows 98 SE. My avast! program is 4.6 Professional. I have it set up pretty much in default. Avast! will find a virus as my email messages are downloading, I click on delete (the radio button "delete permanently" is selected and "delete on startup if necessary" is checked) the window closes and another, smaller window says 'cannot find C:/windows/temp/ AV082C0.tmp file, I click on OK and what I think is a closed loop between the previous Virus warning window and the lost file window begins. I ying-yang between these two windows for a while and finally close the virus warning window by clicking on x in the upper right corner.
I downloaded Avast! Pro 4.6 from the internet and do not have a CD.