For a variety of special characters, see the Character Map, Windows 98 operating system.

From the Windows Start menu:

Programs > Accessories > System Tools > Character Map; click.

Double left-click a character. It will appear in the "Characters to copy:" field. From there it can be cut and copied. In addition, the keystroke for each character will appear in the bottom right corner of the character map (keystroke -- the keyboard key/s used to produce a character).