TrayDevil is a freeware application for Windows PC that allows you to minimize any software/application, folder or active window to your computer’s system tray using a Hotkey. You can also disable the minimize, maximize and close buttons in any windows explorer titlebar as well as quicky shutdown and reboot the computer.
TrayDevil can also automatically run a program (e.g. backup) before it shuts down your computer, triggered by a CPU-usage threshold.

Download Link- http://jenneboer.nl/traydevil/TrayDevilSetup.exe