First. The concept of the shell is compiled into an Exe executable after the author is compiled.
1. Some copyright information need to be protected, don't want others
Casually change, such as the author's name, etc.
2. It is necessary to make a small bit of the program, so easy to use
So, some software needs to be used, they can compress the EXE execures,
Realize the above two functions, these software is called
Housing software or compression software.
It is different from the general WinZip, WinRAR and other compressed software.
It is compressed EXE executable, and the compressed file can be run directly.