east-tec SafeBit can run in Stealth Mode. To use it this way you have to make a few settings, from the Options page.
Mark "Open Program at System Startup" checkbox to be sure that the program is running.
Mark "Hide Tray Icon" checkbox to make the tray icon invisible.
Mark "Open Safe List Hotkey" checkbox and choose a hotkey so that you'll be able to open the list of safes.
When you install east-tec SafeBit you are asked if you want the program to be accessible through the Start Menu. For a real Stealth Mode running east-tec SafeBit, choose not to have it accessible through Start Menu and make all the settings described above.