http://msdn.microsoft.com/library/default.asp?url=/library/en-us/dnfiles/html/ntfs5.asp
这篇文章早在两年前，我高一的时候就读过，那时懵懵懂懂的，看了也不明白。两年以后重读，感悟很多，便用 C# 实现了一个对 NTFS 命名流访问的程序。以下是核心代码，注释来不及写了，自己看看吧。
再有两天就高考了，祝我好运吧。

using System;
using System.Collections;
using System.IO;
using System.Text;
using System.Runtime.InteropServices;

namespace MultiFileStream
{
 /// <summary>
 /// NamedStreamDataHandler 指定一个 NTFS 文件及文件流并提供对该文件流的访问。
 /// </summary>
 public class NamedStreamDataHandler 
 {

  #region 常量声明
  const uint GENERIC_READ = 0x80000000;
  const uint OPEN_EXISTING = 3;
  const uint CREATE_NEW = 1;
  const uint CREATE_ALWAYS = 2;
  const uint GENERIC_WRITE = 0x40000000;
  const string L_InvalidFile = "文件系统无效或文件路径无效。";
  const char STREAM_SEP = ':';
  #endregion

  #region 变量声明
  private string m_FileName;
  private string m_StreamName;
  private byte[] m_StreamData=null;
  #endregion

  #region Win32 API 所必须的数据结构
  /// <summary>
  /// 用于 BackupRead 的 WIN32_STREAM_ID 结构。
  /// </summary>
  [StructLayout(LayoutKind.Sequential)] public struct WIN32_STREAM_ID
  {
   public int dwStreamID;
   public int dwStreamAttributes;
   public LARGE_INTEGER Size;
   public int dwStreamNameSize;
  }

  /// <summary>
  /// 用于 WIN32_STREAM_ID 的 LARGE_INTEGER 结构
  /// </summary>
  [StructLayout(LayoutKind.Sequential)] public struct LARGE_INTEGER
  {
   public int Low;
   public int High;

   public long ToInt64()
   {
    return (long)High * 4294967296 + (long)Low;
   }
  }
  #endregion

  #region Win32 API 声明
  [DllImport("kernel32.dll", SetLastError=true)]
  private static extern IntPtr CreateFile(
   string FileName,                    // file name
   uint DesiredAccess,                 // access mode
   uint ShareMode,                     // share mode
   uint SecurityAttributes,            // Security Attributes
   uint CreationDisposition,           // how to create
   uint FlagsAndAttributes,            // file attributes
   int  hTemplateFile                   // handle to template file
   );

  [DllImport("kernel32.dll", SetLastError=true)]
  private static extern bool CloseHandle(
   IntPtr hObject   // handle to object
   );

  [DllImport("kernel32.dll", SetLastError=true)]
  private static extern bool DeleteFile(
   string lpFileName
   );

  [DllImport("kernel32.dll", SetLastError=true)]
  private static extern bool BackupRead(
   IntPtr handle,
   IntPtr pBuffer,
   int lBytes,
   ref int lRead,
   bool bAbort,
   bool bSecurity,
   ref int Context);

  [DllImport("kernel32.dll", SetLastError=true)]
  private static extern bool BackupRead(
   IntPtr handle,
   ref WIN32_STREAM_ID pBuffer,
   int lBytes,
   ref int lRead,
   bool bAbort,
   bool bSecurity,
   ref int Context);

  #endregion

  #region NamedStreamDataHandler 类的方法成员
  /// <summary>
  /// 清理所有资源。
  /// </summary>
  public void Close()
  {
   //throw new NotImplementedException();
   this.Dispose();

  }

  /// <summary>
  /// 将数据写入目标命名流。
  /// </summary>
  /// <param name="StreamData">需要写入的数据</param>
  public void WriteStreamData(byte[] StreamData)
  {
   m_StreamData=StreamData;

        
        string sName = new string(bName);
        int i = sName.IndexOf(STREAM_SEP, 1);
        if (i>-1) sName = sName.Substring(1, i-1);
        else
        {
         i = sName.IndexOf('\0');
         if (i>-1) sName = sName.Substring(1, i-1);
        }

        
        arr.Add(sName);
       }
       finally
       {
        Marshal.FreeHGlobal(pName);
       }
      }

      
      int l = 0; int h = 0;
      Continue = BackupSeek(handle, sid.Size.Low, sid.Size.High, ref l, ref h, ref Context);
     }
     else break;
    }
   }
   finally
   {
    CloseHandle(handle);  
   }
   return arr;
  }

  /// <summary>
  /// 删除指定流。
  /// </summary>
  public void DeleteStream()
  {
   if(DeleteFile(m_FileName+":"+m_StreamName)==false)
    throw new Exception(L_InvalidFile);
  }
  #endregion

 }
}