Before running the installer, ensure your development and target machines meet these specifications.
To download ArcGIS Engine 10.8.1, you must access the portal using an account with "Download Software" permissions. How to Download ArcGIS Engine 10.8.1 arcgis engine 10.8.1 download
Esri is aggressive about license compliance. Each copy of ArcGIS Engine Runtime that you deploy requires a valid runtime license (purchased per seat). You cannot redistribute the media to external parties. If your auditor finds unlicensed Engine runtimes, fines can range from $10,000 to $500,000 depending on jurisdiction. Before running the installer, ensure your development and