We have EnSight and EnSight license since quite sometime in our labs. Today, due to space restrictions I uninstalled EnSight version 10.1 and 10.2 because we had the latest EnSight R2019 installed. 

Unfortunately now, when I checked with my colleagues, we do require the legacy versions of EnSight since some files are only supported by those versions. When I checked, EnSight 10.1 and 10.2 was owned by CEI that time and now AnSys has the license. We need EnSight 10.1 and 10.2 back on our system.

Please let me know how can I install these versions back on our system and from where?