SLLights.exe
(SmartLink?)
System Tray icon for modems based on SGS-Thomson Microelectronics chipsets (also called STMicroelectronics). This chipset seems to be used mainly in AMR or USB modems. The System Tray icon is installed during the modem driver installation. It enables the end-user to turn ON or OFF features such as the modem speaker, and other minor settings.
Recommendation :
Some users have reported crashes and lockups (freezes) caused by this task, so you may want to disable it with Startup Manager.