Does Bold Reports^® Report Viewer use SSRS Report processing?

No. Bold Reports^® Report Viewer can load reports from SSRS, but it does not use SSRS report processing to render reports. The Bold Reports^® Report Viewer gets only the definitions from SSRS, such as reports, data sources and datasets. Data processing happens in the application server that serves as the backend for the Bold Reports^® Report Viewer. The application server connects to the data source by using the resource details retrieved from the SSRS Report Server and the connection string and query details used in the report. The following image shows the processing flow when Bold Reports^® Report Viewer loads a report from SSRS.

See also

How to provide the permission for user to access the SSRS Report Server reports?