The following table lists and describes the header files that are included with the Commerce Server Software Development Kit (SDK).
| File | Description |
|---|---|
| billingapi.h | Contains the definitions for the Billing Application Programming Interface (API) routines. |
| commerce.h | Contains the interface definitions for the Commerce Server 3.0 objects. |
| comp_ids.h | Contains the class identifiers (CLSIDs) for the pipeline component classes. |
| mspu_guids.h | Contains the CLSIDs for the order processing pipeline objects and interfaces. |
| pipeline.h | Contains the definitions for the pipeline interfaces. |
| pipecomp.h | Contains the proxy/stub definitions for the pipeline interfaces. |
| pipe_stages.h | Contains the globally unique identifiers (GUIDs) for the OPP stages. |