A family of Microsoft word processing software products for creating web, email, and print documents.
You will not be able to use the Alt+0xxx shortcuts if you have no way to simulate a numeric keypad (some laptop keyboards use a Fn key in combination with letter keys on the right side as a numeric keypad). But in Word you have other options. For the eszett, which Word calls "Latin Small Letter Sharp S," you can use the keyboard shortcut Ctrl+&, S. And for any Unicode character, you can type the Unicode number (in this case 00DF) and press Alt+X to insert it.