The more you open several applications simultaneously, the more icons sit in Windows task bar. Therefore, this latter may not have enough space and you will have got difficulty to manage the windows of your applications. Fortunately, PS Tray Factory is there to solve such problem.
PS Tray Factory is a program which allows you to minimize and hide icons which are in the task bar. Henceforth, you can make the icons disappear and group them in a single place without interrupting your current work. To restore them, just click the icon of PS Tray Factory.