For AutoCAD users 2013 and higher, imagine an AutoCAD command line that starts up *instantly* and will let you open files, make changes and save the file. The new Core Console has been referred to as a ‘headless AutoCAD’ since it does not show the graphics editor (and all the interface burdon that comes with it, such as the ribbon). It is the perfect environment for running scripts since they typically don’t require any user interaction anyway.
The AcCoreConsole.exe is in the primary AutoCAD folder, you may want to consider creating a shortcut to it from the desktop. You will also find more information on the Core Console at the following URL (Kean Walmsley’s Through the Interface Blog).