i would like to share the code to zip and unzip a file without using any opensource which is directly used reference file in dot net framework.

Please add the reference file to ZipFile is contained in the assembly System.IO.Compression.FileSystem.
Image result for zip file
To zip a file  
 System.IO.Compression.ZipFile.CreateFromDirectory(startPath, zipPath);
To UnZip a File
 System.IO.Compression.ZipFile.ExtractToDirectory(startPath, extractPath);he reference file to ZipFile is contained in the assembly System.IO.Compression.FileSystem.