When executed, the program performs the following actions: • Loads the COM interface using (vl-load-com) to access the AutoCAD ActiveX API. • Retrieves the active drawing document object using (vla-get-activedocument (vlax-get-acad-object)). • Sends the AutoCAD command NAVVCUBEDISPLAY 1 to temporarily disable the Navigation Cube. • Immediately sends NAVVCUBEDISPLAY 3 to re-enable and refresh the cube display, ensuring it becomes visible and properly updated. • Finishes silently using (princ) to avoid leaving residual command line messages.