+ Easily look up keywords on multiple online references using the new "Help > References" interface. [...]

+ "Limit to a single instance" option under "Edit > Preferences > General > Startup" specifies whether to keep starting new instances of HTML-Kit Tools or to limit to a single instance per session.

+ "/newinstance" command line option can be used to start a new instance of HTML-Kit Tools, regardless of the "Limit to a single instance" setting in preferences. For example, a secondary shortcut can be created with this option for starting a new instance of HTML-Kit Tools.

+ Setup program displays a message if either HTML-Kit 292 or HTML-Kit Tools is running so that they can be closed before starting the setup wizard.

# Removed "Help > Testing" sub menu. [...]