For a smooth setup, follow these steps derived from the LabVIEW 7.1 Release Notes : Solved: Labview 7.1 - NI Forums - National Instruments

Log into your NI user account to check if older purchases are linked to your profile for digital download. Third-Party Archival Sources

Be cautious of third-party file-sharing networks, torrent sites, or unauthorized software repositories claiming to host "free" or "cracked" versions of LabVIEW 7.1. These downloads frequently contain malware, altered registry scripts, or corrupted installers that can compromise your operating system’s stability and security. 2. System Requirements and Compatibility Check