Note to LabWindows MXI Users If you are using an AT-MXI or MC-MXI VXI controller, you must have NI-VXI version 3.10 or later for DOS or Windows to use the enclosed NI-VXI Library for LabWindows. Earlier versions of NI-VXI are not compatible with the enclosed NI-VXI Library for LabWindows. If you do not have NI-VXI version 3.10 Edition Date: April-1993 URL: http://digital.ni.com/manuals.nsf/websearch/884E6C24D44626A28625669F006DD3C5