Do you mean you have LV 6.1? I don't think there was a 6.2.
All you have to do is install the latest version of LabVIEW that has the application builder. Open your old LV 6.1 files. They will be upgraded to LV 2009. Save them. There could always be some issue with upgrading code through that many versions. Just go through and look for any errors and fix them. It may be a good time to truly upgrade your code and replace anything that is ancient such as using DAQmx instead of Traditional DAQ drivers. Or upgrading to the more recent VISA functions.
Once you are satisfied all is well, then you can go ahead and build your application into an .exe.
