Applet + Rmi + Exception

java.rmi.UnmarshalException: error unmarshalling return; nested exception is: 
	java.net.MalformedURLException: no protocol: de
	at sun.rmi.registry.RegistryImpl_Stub.lookup(Unknown Source)
	at digitalizacao.AppletDigitalizacao.novoInit(AppletDigitalizacao.java:547)
	at digitalizacao.AppletDigitalizacao.init(AppletDigitalizacao.java:64)
	at sun.applet.AppletPanel.run(Unknown Source)
	at java.lang.Thread.run(Unknown Source)
Caused by: java.net.MalformedURLException: no protocol: de
	at java.net.URL.<init>(Unknown Source)
	at java.net.URL.<init>(Unknown Source)
	at java.net.URL.<init>(Unknown Source)
	at sun.rmi.server.LoaderHandler.pathToURLs(Unknown Source)
	at sun.rmi.server.LoaderHandler.loadProxyClass(Unknown Source)
	at java.rmi.server.RMIClassLoader$2.loadProxyClass(Unknown Source)
	at java.rmi.server.RMIClassLoader.loadProxyClass(Unknown Source)
	at sun.rmi.server.MarshalInputStream.resolveProxyClass(Unknown Source)
	at java.io.ObjectInputStream.readProxyDesc(Unknown Source)
	at java.io.ObjectInputStream.readClassDesc(Unknown Source)
	at java.io.ObjectInputStream.readOrdinaryObject(Unknown Source)
	at java.io.ObjectInputStream.readObject0(Unknown Source)
	at java.io.ObjectInputStream.readObject(Unknown Source)
	... 5 more

Start servidor

			Registry reg = LocateRegistry.createRegistry(10800);
			reg.bind("Digitalizacao", new DigitalizacaoImpl());

Applet
                        String server = getCodeBase().getHost();
                        Registry reg = LocateRegistry.getRegistry(server,10800);
			servidorRMI = (IDigitalizacao) reg.lookup("Digitalizacao");