progressbar in windows application

i have code to extract rar files .i want to assosiate a progress bar for this process of extraction.below is my code.could you please add progressbar to it.

public void UnZip()

{

string DestinationPath = @"C:\Temp\DATA_UNITS\BusinessObjectsServer_win\response.ini";

Shell32.Shell sc = new Shell32.Shell();

System.IO.Directory.CreateDirectory("C:\\TEMP");

Shell32.Folder output = sc.NameSpace("C:\\TEMP");

string sourcePath = Application.StartupPath + "\\51047839.ZIP";

Shell32.Folder input = sc.NameSpace(sourcePath);

output.CopyHere(input.Items());

System.IO.File.Delete(DestinationPath);

}