You need a program that makes something called a "boss key".
http://www.magictweak.com/freeutil/magicboss/magicboss.php
That should work.
When you choose the option "hide when minimized".
a developer program to make your phone hide system information
perhaps "hide" ... instead of showing or portraying something, you hide it.
Abscond.
minimizing
To hide a taped program on your DVR, navigate to your recordings list and select the program you want to hide. Look for an option like "Hide" or "Mark as Private" in the settings or options menu associated with that recording. This will prevent the program from appearing in the main list of recordings, but it may still be accessible through a specific hidden or private section of the DVR menu. Consult your DVR's user manual for precise instructions, as the process can vary by model.
good question
Any virus can inject itself into a running process and hide out in it without your knowledge. Your AntiVirus might catch onto it, but it can't delete a file that it being used by the system.
you cant
it seems you are finding a kind of boss key. i searched and found Second Hide quite interesting and probably fits your need. It allows the designate programs to run in the background (hiding icons in system tray meantime)
Do not echo the keystrokes, output an asterisk instead.
It is not hard to hide speaker wires after installing a sound system. Just try to hide it or tuck along edges and seams of your car or home and glue it.