2.2.3.1.1.1.2 RopFastTransferSourceCopyTo ROP Response Buffer
The following descriptions define valid fields for the response buffer of the RopFastTransferSourceCopyTo ROP ([MS-OXCROPS] section 2.2.12.7).
ReturnValue (4 bytes): An unsigned 32-bit integer. This value represents the ROP execution status.
OutputServerObject: The value of this field MUST be the FastTransfer download context. This value MUST be present if and only if the value of the ReturnValue field equals Success (0x00000000).