12Ghosts TrayProtect 7.10
Hide tray icons (still accessible in the context menu), restore after a crash
License:Shareware, 29.95 to buy Size: 1500KB

Anti Boss Key - Hide windows quickly! 3.91
Instantly hide windows (applications) on your screen with a single key stroke
License:Freeware, 0 to buy Size: 712KB

Anti Boss Key - Hide windows quickly. Hide your screen! 3.91
Anti Boss Key - Hide windows ( applications )
License:Freeware, 0 to buy Size: 1 MB

La Boss Key 2.1
A simple yet powerful tool for your privacy and productivity needs.
License:Shareware, 5.95 to buy Size: 390KB