typedef struct _COMPRESSED_DATA_INFO
{
    unsigned short CompressionFormatAndEngine;
    unsigned char CompressionUnitShift;
    unsigned char ChunkShift;
    unsigned char ClusterShift;
    unsigned char Reserved;
    unsigned short NumberOfChunks;
    unsigned long CompressedChunkSizes[1];
} COMPRESSED_DATA_INFO, *PCOMPRESSED_DATA_INFO;