Working with External References using code stages

[NarayanRimal]

I would like to use "System.IO.Compression.ZipFile" to unzip the file using the code stage for C#. The problem that I am having is with finding the correct External References to System.IO and proper Namespace Imports. Where can I find the dll that can accomplish the External References to what I am looking for. Any suggestion would be greatly appreciated. Thank you

[John__Carter]

Reference System.IO.Compression.FileSystem.dll and in a code stage: ZipFile.ExtractToDirectory(Source_Path, Destination_Path)

[NarayanRimal]

Thank you it worked, For namespace I used System.IO.Compression