First right click on the toolbar in IE and see that the toolbar sesh"..." was checked.Go into regedit and search for sesh. Each string that matched, I deleted . then go to HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run and delet a line that had tthull and mseadoot.exe mentioned.

Close regedit and search computer for mseadoot.exe and deleted it. After resetting the home page, reboot and Lop will gone.

Hope this helps

You could also try spybot S&D or Adaware