1. Here's how

The red 'Success' error is almost always caused by Windows permission problems or over-zealous anti-virus, firewall or network security software.

1.1: To resolve the issue, please right-click on 'Lumion.exe' in the Lumion installation folder and select 'Run as administrator'.

1.2: If that doesn't resolve the problem, please follow these instructions:

Knowledge Base: How do you resolve anti-virus and firewall problems?