I would like to test a transport model (released in 2009) that was built upon ArcGIS 9.3.1. I do have a valid license for ArcGIS Desktop 10.5, but the model doesn't work with this version.
Is it still possible to get a trial version for a few weeks such that I can test the transport model before trying to get a license of this pretty old piece of software? I'm not able to find it anywhere at the ESRI website, nor any other information regarding still using the old 9.x version..
Who can help me with it?