Hi, Thanks for your replies to my earlier queries. I have completed the VI project for UPS. Now I want to make this VI to run in background process, means we have to give a one installable file to the user, when he/she installed this file, the VI has to run as background process and it has to start whenever PC boots up. And also VI icon for displaying front panel has to go to system tray (where time is displayed). Can you please let me know how to do this.