I assume you are using the Report Designer Component (CRAXDRT) and the Crystal Viewer (CRViewer.DLL) with VB6.
Part One- Upgrade the Viewer 1) Under components you will need to add Crystal Report Viewer Control 9 2) Remove the CR8.5 Crystal Viewer from your viewer form 3) Add a CR9 viewer to the form and rename it to the same name asthe control deleted above (2) 4) Remove component for the CR8.5 viewer
part Two - Upgrade CRAXDRT.DLL 5) Under Project references untick Crystal Reports 8.5 ActiveX Designer Run Time Library tick Crystal Reports 9 ActiveX Designer Run Time Library
The remainder of your code shoould work with no other changes required.
Now we just need to identify which new DLL's to include in the install files (another FAQ planned for that)