Welcome to the club. There is a strange comfort in the marriage of Visual Basic 6 (VB6) and Crystal Reports 8.5. For years, this was the industry standard for building desktop business applications. It just worked.
Once installed, you need to link the two environments. crystal report 85 for visual basic 60 free download work
: Allows developers to design and modify reports directly within the VB6 IDE. Welcome to the club
If your business depends on legacy reports, start planning a migration to a modern reporting tool that can import your existing .RPT files (SAP Crystal Reports 2020 has an import wizard for 8.5 files). It just worked
Crystal Reports 8.5 for VB6: How to Get It Working (Legacy Developer Guide)
Struggling with Crystal 8.5 is not sustainable. Consider these free/open-source replacements that work with VB6 via ActiveX: