Win - Commander is a menu-driven development system for the WINDOWS environment. It simplifies the control and programming of the LANG positioningsystems as there are MCL, ECO-STEP and LSTEP. All necessary parameters i.e. spindle-leads, maximum values etc. may be entered in SI-units via menus and then transferred to the respective control units.The complete command set for the positioning-systems is available via mouse-click. In addition the creation and execution of complex axes movements may easily be performed.