/// <summary>
/// Opens the archive stream for reading. Returns a DuplicateStream instance,
/// so the stream may be virtually opened multiple times.
/// </summary>
/// <param name="archiveNumber">The archive number to open (ignored; 0 is assumed).</param>
/// <param name="archiveName">The name of the archive being opened.</param>
/// <param name="compressionEngine">Instance of the compression engine doing the operations.</param>
/// <returns>A stream from which archive bytes are read.</returns>
public Stream OpenArchiveReadStream(int archiveNumber, string archiveName, CompressionEngine compressionEngine)
{
return(new DuplicateStream(archiveStream));
}