The CompoundMessage method is received by the server in an RPC_REQUEST packet. In response, the server MUST return the represented Message.SoapCompoundMessage.

 [propget] HRESULT CompoundMessage(
   [out, retval] VARIANT* pvarCompoundMessage
 );

pvarCompoundMessage: A pointer to a VARIANT that contains an array of BYTES (VT_ARRAY | VT_UI1) that contains the entire contents of the SRMP message, including the SOAP envelope and all SOAP attachments.

Return Values: The method MUST return S_OK (0x00000000) on success or an implementation-specific error HRESULT on failure.

When processing this call, the server MUST follow these guidelines: