private static MessageBoard PrepareMessageBoard()
{
var mb = new MessageBoard();
mb.Receive<CreateCommand>(On);
mb.Receive<DestroyCommand>(On);
mb.Receive<OpenCommand>(On);
mb.Receive<CloseCommand>(On);
mb.Receive<WriteCommand>(On);
mb.Receive<ReadCommand>(On);
mb.Receive<SeekCommand>(On);
mb.Receive<DirectoryCommand>(On);
mb.Receive<InitCommand>(On);
mb.Receive<SaveCommand>(On);
mb.Receive<HelpCommand>(On);
mb.Receive<ExitCommand>(On);
return mb;
}