Typing an ASCII character

In DOS:

Hold down the <Alt> key while typing the decimal number on the keyboard keypad. (Example:  <Alt>178)

 

In Windows for a DOS character:

Hold down <Alt> while typing the decimal on the keyboard keypad. (Example:  <Alt>230)

 

In Windows for a WIN character:

Hold down <Alt> while typing "0" then the decimal number on the keyboard keypad. (Example:  <Alt>0140)