Click at the apex of the vertical and horizontal rulers and a message appears that provides the current version of the LiteCAD.DLL in use by DigFindR. Over time this DLL version will change as it is being updated and improved constantly by Oleg Kolbaskin who develops the DLL. The LiteCAD.DLL (Dynamic Link Library) supplies most of the 2D CAD functionality of DigFindR. See: http://www.kolbasoft.com/