| D | F | P | T |
| DEV_ID_SRC_FAX | DEV_ID_SRC_TAPI |
| FAX_ENUM_DEVICE_ID_SOURCE |
| PFAX_EXT_CONFIG_CHANGE | PFAX_EXT_INITIALIZE_CONFIG | PFAX_EXT_UNREGISTER_FOR_EVENTS |
| PFAX_EXT_FREE_BUFFER | PFAX_EXT_REGISTER_FOR_EVENTS | |
| PFAX_EXT_GET_DATA | PFAX_EXT_SET_DATA |
| TFaxEnumDeviceIdSource |