Unzip compressed folder in C# using 4.0 framework

Use System.IO.Compression.FileSystem.dll which exist in C:\Windows\Microsoft.NET\assembly\GAC_MSIL\System.IO.Compression.FileSystem\v4.0_4.0.0.0__b77a5c561934e089

Namespace Name :- using System.IO.Compression.FileSystem

Use below code in class file :- ZipFile.ExtractToDirectory(strZipfilePath, strDestinationPath);

strZipfilePath :- Compressed folder path

strDestinationPath :- Uncompressed file path