public override void Load()
{
//if ( string.IsNullOrEmpty( _zipFile ) )
//{
_zipFile = Name;
// read the open the zip archive
var stream = _assets.Open( Name );
byte[] buffer = new byte[ stream.Length ];
stream.Read( buffer, 0, buffer.Length );
stream.Close();
ms = new MemoryStream( buffer );
ms.Position = 0;
// get a input stream from the zip file
_zipStream = new ZipInputStream( ms );
//}
}