The c-tree Plus Data Access Components, c-treeVCL, are composed of six components TCtSession, TCt, TCtTable, TCtField, TCtIndex, TCtSegment, although only the first three of the six components are found in the component palette.
Keep in mind that the c-treeVCL components are intended for c-tree Server V7.11 and later, and will not work with servers prior to V7.11.