1)   B-Calm Privacy v1.0.40
Instantly hide what's on the screen by pressing a secret "panic" hotkey removing them from the task bar and task manager, then restore all windows later when the panic is over! Activate by secret hotkey, or clicking on a systray icon. Perfect bosskey
bosskey, privacy, boss-key, hide apps, hide applications, panic button, panic, bcalm privacy, b-calm privacy,

 2)   Taskbar Hide - hide windows program 1.28
Hide windows program (hide applications)completely through a hotkey or as an icon in system tray.Hide some less used icons from tray.Arrange the windows on taskbar based on your choice.Automatically maximize all new windows or only new IE windows.
hide windows, boss key, hide window, hide program, hide applications, hide windows taskbar, hide icons, game hide, hide task, stay on top window,

 3)   Hide Master 1.82
Hide Master is powerful but easy to use tool for hiding windows and programs. Hide Master allows you to hide (and unhide) specified windows and groups of windows by pressing a combination of Hotkeys.
hide, show, display, boss, hide windows, hide programs, hide applications, desktop, utility, security,

 4)   Hide Window Now 2.5
Hide Window Now can help you to hide all running programs in seconds by a Mouse Hotkey or Keyboard Hotkey. (Mouse Hotkey: Press left button, Click right button.)
hide, hide windows, hide programs, hide applications,

 5)   ATS Warning! The Boss! 1.5
Avoid others seeing data in your PC (message programs, bank account numbers, photographs unsuitable for children) hiding applications, windows, the icons in the systray, the icons in the desktop and silencing your PC. English and Spanish
Hide windows, hide applications, hide icons in the system tray, mute sound card, arrange windows in cascade, arrange windows in tile,