Open the Options Dialog on the active monitor (so it won't be forgotten on a secondary monitor)
When checked, the options dialog will always open on the currently active monitor. When unchecked, the options dialog will remember its last position, allowing you to have it appear on a secondary monitor.

Auto Switch to Audio Mode when a Media File does not contain a Video Stream
When enabled, Zoom Player will automatically switch to Audio Mode when a media file that does not contain any video content is played.

Auto Switch to Media Mode when a Media File contains a Video Stream
When enabled, Zoom Player will automatically switch to Media mode when a media file containing video content is played.

Player should stay on top of other applications when switching to Audio Mode
Beyond the standard "Stay on Top" feature accessible through the right-click menu, this feature enables you to have the player "Stay on Top" in audio mode even if the player as a whole isn't set to Stay on Top.

Show Button "Hints"
Controls whether small pop-up hints appear when the mouse hovers over user interface elements.

ESC Quits Player when used in window mode
Pressing the ESC key closes all user interface elements currently visible. With this setting enabled and no user interface elements visible (other than the main window), pressing the ESC key will close Zoom Player.

Delete key erases the currently playing file (with confirmation)
When enabled, the delete key will erase the currently playing files. To prevent accidental clicks, you will be prompted before the file is erased.

Playing new content moves the player window to the top
With this setting enabled, playing new content will ensure that the Zoom Player window is top-most window (with the exclusion of stay on top windows).

Lock Filter / Decoder configuration pages to the main user interface
When enabled, opening a filter's property (configuration) page will have the page attached to the main user interface window (and block access to the interface in the background). When disabled, the page becomes free-floating and can disappear behind the player or open on a secondary monitor (but allow you to access the user interface).

On Media / DVD Play
This setting allows you to control Zoom Player's behavior when new content is being played.

On CD / DVD Insert & Play
On CD / DVD Insert controls what action Zoom Player should take when it detects an inserted CD or DVD.

Start player in
The Start player in setting controls the Zoom Player window state when Zoom Player is initially run.

Alternative context menu file (clear = use default menu)
Zoom Player's right-click context menus can be user-customized. This value allows you to pick a menu specification file. For more information on this interface, open the "english.menu" file which resides in the Zoom Player language directory using any text editor.