Hello LegalEngineer, Thank you for your inquiry regarding VI instances with the same name. It sounds like the wrong VIs are getting loaded into Testand because they have the same file name. There are several Windows Utility VIs available that could help in this case. One of the Utility VIs is called Get Window Refnum and should return any instances of a window. The following links are great resources when dealing with this issue.
http://digital.ni.com/public.nsf/websearch/136F6B1F34CBB76E852563FC007AEFC7= ?OpenDocument http://sine.ni.com/apps/we/niepd_web_display.display_epd4?p_guid=3DB45EACE3= EF4556A4E034080020E74861&p_node=3DDZ53008&p_submitted=3D&p_rank=3D&p_answer= =3D&p_source=3DExternal These should help you get started in finding instances of VIs with the same name. After this is implemented it shouldn=92t be hard to use a dialog box to notify the user that some of the instance names match and there could be a problem loading the correct VI into Testand. Other responses similar to these can be found on the ni.com website by clicking the support tab at the top of the home page. Then search for =93refnum instances=94 from Technical Resources at the top of the page or topics similar to this. I hope these resources help. Let me know if I can further assist you. Shea C. Applications Engineering