The LabVIEW Runtime Engine 8.5.1 is a stable solution for running older LabVIEW applications, but its age means you should prioritize safety when obtaining it.
If you are a developer looking to distribute your own 8.5.1 application, the best practice is to use the LabVIEW Application Builder to create an installer that automatically bundles the 8.5.1 Run-Time Engine as an installer prerequisite. labview runtime engine 85 1 download hot
After installation, you can verify that the LabVIEW Runtime Engine 8.5.1 is installed correctly: The LabVIEW Runtime Engine 8
You will need a free National Instruments user account to initiate the download. Once logged in, download the standard executable wrapper (usually an .exe file around 100MB–200MB in size). System Compatibility and Legacy Installation Issues labview runtime engine 85 1 download hot