You can set the keyboard keys you wish to use to activate PopupCD's functions from the keyboard. Select the "Enable" button to enable this feature, and click the "Set..." button to view or change the key assignments. You can choose which keyboard modifier keys to use with a mouse click to popup the remote control or popup menu (click and hold to access the popup menu). If no modifiers are checked, the popups will be disabled (keyboard functions are still available). Displays the name of the registered user of this copy of PopupCD when registered. To register PopupCD, click this button. Enables automatic eject of any audio CD or CD-ROM at shutdown. If this option is selected, the CD will be ejected if one is present when the system is shut down. You should then remove it from the drive and press any key or mouse button to continue. Enables automatic resume of playback after a restart. If this option is selected, playback will continue from where it left off at the last restart, whether in shuffle, play or pause mode. Note that this works only after a restart, not after shutdown. Enables automatic playback when an audio CD is inserted, or after a restart or shutdown. Playback starts at the beginning of the disc, unless 'Auto-resume' is also selected. To view or edit keyboard keys assigned to PopupCD functions, click this button. Enables PopupCD keyboard control keys when checked. When not checked, PopupCD ignores all keyboard activity. You can also disable keyboard functions individually from the "Set..." dialog. If this button is checked, you must press the 'command' key in combination with the other modifier keys checked when you press the mouse button to access the PopupCD remote control. If this button is checked, you must press the 'option' key in combination with the other modifier keys checked when you press the mouse button to access the PopupCD remote control. If this button is checked, you must press the 'control' key in combination with the other modifier keys checked when you press the mouse button to access the PopupCD remote control. If this button is checked, you must press the 'shift' key in combination with the other modifier keys checked when you press the mouse button to access the PopupCD remote control. To set preferences for other features of PopupCD, click this button. To display version, status, and contact information, click this button. This switch determines whether PopupCD is enabled and will load the next time the computer is started up.