public class StreamFile : AbstractFile 

// Create a stream that access a zip file contained within the resources
// of an application.
Stream resources = this.GetType().Assembly.GetManifestResourceStream( "Resources.zip" );

// Initialize a new instance of the StreamFile class specifying the inner stream
// as well as the name of the file.
StreamFile file = new StreamFile( resources, "Resources.zip" );

// Initialize a new instance of the ZipArchive class using 
// newly created StreamFile object.
ZipArchive zip = new ZipArchive( file );

// Copy files from the zip file contained within the resources to a local folder.
zip.CopyFilesTo( new DiskFolder( @"d:\Destination" ), false, true );