I believe Site Advisor uses such files. Either way, have you done a search for those files and once found, checked their properties?? It should tell you something.
Hope this helps.
I'm getting frequent messages from User Account Control asking for permission to access an unidentified program - just a few I've noted are upd87F9.tmp.exe, upd6AB9.tmp.exe - they all start with 'upd'. As I don't know what they are for, I don't allow. But they keep coming. Are they important?
Vista Home Premium [which I'm getting to loathe)