I am running LabVIEW V8.2.1 on my main computer. Works fine. When I create an executable using the APP Builder (same version) and try it on my test machine, it gives an error as shown. I tried to install "LabVIEW_8.2_Runtime_Engine.exe" (93.75Mb) per another discussion thread but was told by the NI installer that the version on my test system is newer and cannot be overwritten. How do I remove the "latest" run-time engine so that I can load one that works, i.e. one that has the full NIAALPro.lvlib installed.