If you have the original installer CD ISO (common in engineering archives):
Released in the early 2000s, LabVIEW 6.1 (also known as 6i) introduced features that are now industry standards, including: labview runtime engine 6.1
You have a $250,000 test stand built in 2003. The original source code (the .vi files) is lost on a dead hard drive. All you have is the compiled .exe . The machine works flawlessly, but you just got a new Windows 11 PC for the operator. You need RTE 6.1 to run the GUI. If you have the original installer CD ISO