CMC_X_MS_ATTACH data structures are used by the CMC_X_MS_ATTACH_DATA and CMC_X_MS_ATTACH_MESSAGE extensions to support message attachments.
| Header file: | XCMCMSX2.H | 
typedef struct {
     CMC_message_reference FAR * message;
     CMC_uint32 id;
     CMC_buffer object;
} CMC_X_MS_ATTACH;