For technical terms that are being defined, for example, “A gizmo is a whosits containing a thingamajig”.

For terms that are emphasized in the text, for example, “Do not erase your autoexec.bat file”.

For the initial keyword Caution of the caution style.

For source code, directory and file names, and text that the user types at the keyboard.

Emphasized code words, such as code that a user needs to edit.

(Optional in user documentation) For menu commands, button names, dialog-box options, and other terms or phrases that the system displays on the user's screen. Example: "Select the option to Dial immediately".

You may use the command char style to highlight command names, etc. in documents that are intended for nontechnical users. The use of the style is optional; in documents where it is not used, type the command names in mixed case, default paragraph style, for example, "Select the option to Dial Immediately."

Avoid using the command char style in developer and reference documentation. These types of documentation typically contain much text in the code char style, and the additional command char style would be confusing.