I'm running Windows XP and I use Microsoft Security Essentials as my antivirus. Lately it's been picking up viruses in my C:\Documents and Settings\[USER]>\Local Settings\Temp folder and cleaning them, but then the same virus just comes back 5 minutes later and gets wiped again. A full scan reveals nothing, but I'm assuming whatever is creating these virus files in my temp folder is still there. They are all listed as Trojan:Win32/Startpage.BO. Several weeks ago it was hf2.dll that kept appearing, then it stopped for a while, then a week later it was hf3.dll for a few days, and today it is zpa.dll and zpa.exe. Anyone got any ideas? What exactly has permission to create files in my temp folder? Just about everything?