DOS Command ShellType: Internal (2.0 and later)
Purpose: Used in the CONFIG.SYS file to specify the command interpreter that DOS should use.
DiscussionIn most cases DOS will use the command interpreter COMMAND.COM. If you are using another command interpreter, or if DOS is not in the root directory, you can use the SHELL command to tell DOS the name and location of the other command interpreter.
Optionparameters - Any parameters required by the specified command interpreter.
ExampleTo use a command interpreter called NDOS.COM, located in the ALTDOS directory, enter the following line in your CONFIG.SYS file:
This page is from http://www.easydos.com. I pasted it on my website to avoid possible broken links. For further help with DOS commands, Check easydos.com out.