struct WIN32_STREAM_ID { 
    DWORD dwStreamId; 
    DWORD dwStreamAttributes; 
    LARGE_INTEGER Size; 
    DWORD dwStreamNameSize; 
    WCHAR  cStreamName[ ] ; 
} 
 
| Value | Meaning | 
| BACKUP_DATA | Standard data | 
| BACKUP_EA_DATA | Extended attribute data | 
| BACKUP_SECURITY_DATA | Windows NT security descriptor data | 
| BACKUP_ALTERNATE_DATA | Alternative data streams | 
| BACKUP_LINK | Hard link information | 
| Value | Description | 
| STREAM_MODIFIED_WHEN_READ | Attribute set if the stream contains data that is modified when read. Allows the backup application to know that verification of data will fail. | 
| STREAM_CONTAINS_SECURITY | Stream contains security data (general attributes). Allows the stream to be ignored on cross-operations restore. |