Can't remove app from the dock- Smart Board - Smart Notebook

I installed smartboard software for mac now every time I start my computer up the icon is in my Dock with the light below it I can quit the app and it disappears, BUT when I start my computer up its back again I looked under users and groups and the app is not not in the login items yet everytime I start my mac this app is in my dock and the light below is on. This is becoming very frustrating, Please help.

thanks