Ah, OK.
In that case (as Eddy said), the automatically started processes are:
ashServ.exe - the main on-access protection process, running as a system service
aswUpdSv.exe - another service, responsible for updating the program and virus database
ashMaiSv.exe - e-mail protection proxy (POP3/IMAP/SMTP)
ashDisp.exe - GUI for the on-access protection; displays the tray icon, on-access scanner messages in the tray area, popup menus, windows...