Autoexec
Bách khoa toàn thư mở Wikipedia
after completing the config.sys operation, the operating system searches for the presence of a file called the ATOEXEC.BAT file.this file contains a btch of commands that will automatically be carried out when the operating system is loaded into the system.this file can slso be re-executed from the command promt by simply typing the command AUTOEXEC.However, this is not true of the config.sys file.The system must be restarted in oder to perfrom the commands in this file.