2.2.17.1 RopWriteStreamExtended ROP Request Buffer
The following descriptions define valid fields for the RopWriteStreamExtended ROP request buffer ([MS-OXCROPS] section 2.2.9.4.1).
DataSize (2 bytes): An integer that specifies the number of bytes in the Data field.
Data (variable): An array of bytes that constitute the data to be written to the stream.