#ifndef _NTIOAPI_H
typedef struct _FILE_STREAM_INFORMATION
{
ULONG NextEntryOffset;
ULONG StreamNameLength;
LARGE_INTEGER StreamSize;
LARGE_INTEGER StreamAllocationSize;
_Field_size_bytes_(StreamNameLength) WCHAR StreamName[1];
} FILE_STREAM_INFORMATION, *PFILE_STREAM_INFORMATION;
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This structure is documented in Windows Driver Kit.