: As of 2021, downloading older software versions often requires an active service agreement or a logged-in NI account associated with a registered serial number. System Compatibility and Requirements
: Historical versions are often hosted on NI’s legacy servers, such as the LabVIEW Windows Runtime FTP. labview runtime engine 85 1 download 2021
While National Instruments (NI) has transitioned to modern installers, legacy versions are still available through specific channels: : As of 2021, downloading older software versions
: You can search for archived versions on the official NI Runtime Download page . Select "8.5.1" from the version dropdown if available. : As of 2021