goto run.
type msconfig.
then from the startup tab, disable "winlog" or anything that you dont know. this are items thatrun when you log in to the windows and are seen on the extreme lower left of the monitor(taskbar/taskpane)
then restart.
delete a winlog.exe file from your removable media. use esset enod32. it detects the worm, but not the .exe file. so if you dont format removables, u r gone case.