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
good question
you cant
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.
The role of a hide extended network system is to protect one's privacy. Hiding your network system may effectively stop people from accessing your network system.
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.