Because it is proprietary software, "free" downloads found on random sites are usually abandonware
Old software doesn't get security patches. Using it in a modern, internet-facing environment can be a risk. Finding a Legitimate Copy --- Download Crystal Reports 8-5 Full Version
, it’s a trip down memory lane. Released in the early 2000s, this version was a powerhouse for its time and remains a legacy standard for many older business applications. The Legacy of 8.5 Because it is proprietary software, "free" downloads found
Since SAP (the current owner) moved on years ago, you won't find an official download link on their main site. It is officially End of Life (EOL) Compatibility: Because it is proprietary software