RS Tracer
Have you ever wondered what API calls Report Manager or Management Studio are performing to accomplish certain operations?
Teo Lachev’s RsTracer helps answer these questions. The tool is available as a CodePlex project and shows the APIs that a Reporting Services client invokes and what arguments it passes to each interface. It also intercepts the server response. Armed with this information, you can easily reproduce the same feature in your custom management application. RsTracer works with all versions of Reporting Services.