static void ItemCompletionExample()
{
  /* Create a reference to a FileSystemEvents object */
  FileSystemEvents events = new FileSystemEvents();

  /* Subscribe to the ItemCompletion event of the FileSystemEvents object using the ItemProgressionEventHandler delegate */
  events.ItemCompletion += new ItemProgressionEventHandler( OnItemCompletion );

  // Get a reference to an existing zip file
  AbstractFile zipFile = new DiskFile( "ItemCompletionExample.zip" );
  System.Diagnostics.Debug.Assert( zipFile.Exists );
  Xceed.Zip.ZipArchive zip = new Xceed.Zip.ZipArchive( zipFile );

  // Select an output folder
  AbstractFolder destination = new DiskFolder( "Output" );

  // Extract the files from the archive using the events object
  zip.CopyFilesTo( events, null, destination, true, true );
}

/* Create a new method that will handle the events that are raised. For the purposes of this example, we will call the method OnItemProgression */
static void OnItemCompletion( object sender, ItemProgressionEventArgs e )
{
  /* Place the desired code in the newly created event handler */

  FileSystemItem targetItem = e.TargetItem;

  // Remove the read-only attribute from the target file
  FileAttributes attributes = targetItem.Attributes;
  targetItem.Attributes = ( attributes & ~FileAttributes.ReadOnly );
}