As outlined in your original installation download email ... it is the client's responsibility to maintain a copy of the original installation file in the event that a re-installation is required at a future date. That file was a complete installation file ... the same file that would have been provided on a CD ... and can be copied to a CD or other external media and stored in the event a re-installation was required in the future.
We do not and cannot supply legacy installation.
The only installation we can provide is for the current version of the software ... and that would come with an UPGRADE charge. Software UPGRADE pricing can be reviewed here : https://www.buykipware.com/store/Kipware-UPGRADES-c19807030/
If you do not have your original installation file and are seeking that file for a re-installation after the warranty period ... you must purchase an UPGRADE ... NO EXCEPTIONS. Pricing and purchase options can be found HERE.