This is a list of the SSCHART (Graph Files for Crystal 7) DLLS.
sschart.exe
sscdlg32.dll
sscnd32.dll
sscres32.dll
sscsdk32.dll
sschart.cnt
sschart.GID
They should be included in the same runtime environment as the report you are trying to run.
Putting these DLLS in the same folder, as a report I was trying to run, solved a similar problem for me.
Hope this helps.
Alan