Dude are you like 5th grade? What's with the simple questions, you can find them on google all over, im sure.
I've played only 1 game of Ubisoft and I even applied for a job offer they had.. so by my single game exp I suppose Game Explorer is the window that shows when u click the exe where you can either click STart Game setting etc
Create shortcut, paste it on your startup, click properties to see the path of the startup paste it frm my computer/windows explorer and it will be back..