Hi, thank you both for posting these libraries. I was going to have a look but I have a very strange problem. I can open the project but if I try to open test.vi (or some other VI's but not all) , LabVIEW hangs for a few seconds, then crashes. I have installed the d2xxx driver just in case, and I have re-started my PC. This happens in LV2013 and 2015. I guess it is something to do with the dll call, but what could it be? I have not seen this behavior before. T Hank you for any suggestions you may have,
Michael.
