class CZipFileHeader
    {
        private const int MAX_PATH = 255;

        public char[]  m_cName; //File name. length:255
        public long  m_lStartPos; //Start position
        public long  m_lSize; //File size

        public CZipFileHeader()
        {
            m_cName = new char[MAX_PATH];
        }
    }

------解决方案--------------------
ICSharpCode.SharpZipLib.dll

------解决方案--------------------
C# code
///  <summary> 
 /// 压缩和解压文件 
 ///  </summary> 
 public class ZipClass 
 { 
   ///  <summary> 
   /// 所有文件缓存 
   ///  </summary> 
   List <string> files = new List <string>(); 
  
   ///  <summary> 
   /// 所有空目录缓存 
   ///  </summary> 
   List <string> paths = new List <string>(); 
  
   ///  <summary> 
   /// 压缩单个文件 
   ///  </summary> 
   ///  <param name="fileToZip">要压缩的文件 </param> 
   ///  <param name="zipedFile">压缩后的文件全名 </param> 
   ///  <param name="compressionLevel">压缩程度，范围0-9，数值越大，压缩程序越高 </param> 
   ///  <param name="blockSize">分块大小 </param> 
   public void ZipFile(string fileToZip, string zipedFile, int compressionLevel, int blockSize) 
   { 
     if (!System.IO.File.Exists(fileToZip))//如果文件没有找到，则报错 
     { 
       throw new FileNotFoundException("The specified file " + fileToZip + " could not be found. Zipping aborderd"); 
     } 
  
     FileStream streamToZip = new FileStream(fileToZip, FileMode.Open, FileAccess.Read); 
     FileStream zipFile = File.Create(zipedFile); 
     ZipOutputStream zipStream = new ZipOutputStream(zipFile); 
     ZipEntry zipEntry = new ZipEntry(fileToZip); 
     zipStream.PutNextEntry(zipEntry); 
     zipStream.SetLevel(compressionLevel); 
     byte[] buffer = new byte[blockSize]; 
     int size = streamToZip.Read(buffer, 0, buffer.Length); 
     zipStream.Write(buffer, 0, size); 
  
     try 
     { 
       while (size  < streamToZip.Length) 
       { 
         int sizeRead = streamToZip.Read(buffer, 0, buffer.Length); 
         zipStream.Write(buffer, 0, sizeRead); 
         size += sizeRead; 
       } 
     } 
     catch (Exception ex) 
     { 
       GC.Collect(); 
       throw ex; 
     } 
  
     zipStream.Finish(); 
     zipStream.Close(); 
     streamToZip.Close(); 
     GC.Collect(); 
   } 
  
   ///  <summary> 
   /// 压缩目录（包括子目录及所有文件） 
   ///  </summary> 
   ///  <param name="rootPath">要压缩的根目录 </param> 
   ///  <param name="destinationPath">保存路径 </param> 
   ///  <param name="compressLevel">压缩程度，范围0-9，数值越大，压缩程序越高 </param> 
   public void ZipFileFromDirectory(string rootPath, string destinationPath, int compressLevel)