Integration of Crystal Report 2008 to Native C++ code

I am working in a project that was coded 100% in native C++ ( Visual Studio 2008 ). We have a set of propietaries classes that hold all data to show in a report, we need to integrate Crystal Report 2008 using DataSets. So I would need to fill some datasets ( using my propietary C++ classes as base ) and bind it to a RPT.

Have any of you know is there is some documentation to integrate CR 2008 in a visual C++ solution using the DataSet stuff ?

I am trying to create a separate C# Crystal Report project and accessing it via managed C++, is there another solution ?

Thanks.