Enter the _LoadServiceChemInvaders command at the ChemStation command line and press the <ENTER> key.

The command line is the white line directly above the status line at the bottom of the screen. If this line is missing, please go to the menu tree and select the <View|Command line> entry to toggle the command line display.

If you get an error message in the status line, check the spelling of the command you entered and/or compare the supported versions.