diff --git a/src/zutil/net/dns/MulticastDNSClient.java b/src/zutil/net/dns/MulticastDNSClient.java
index 3ac48e9..bcdc5e3 100755
--- a/src/zutil/net/dns/MulticastDNSClient.java
+++ b/src/zutil/net/dns/MulticastDNSClient.java
@@ -24,8 +24,52 @@
 
 package zutil.net.dns;
 
+import zutil.net.threaded.ThreadedUDPNetwork;
+import zutil.net.threaded.ThreadedUDPNetworkThread;
+import zutil.parser.binary.BinaryStructParser;
+import zutil.parser.binary.BinaryStructWriter;
+
+import java.io.IOException;
+import java.net.DatagramPacket;
+import java.net.InetAddress;
+import java.net.UnknownHostException;
+
 /**
- * Created by ezivkoc on 2016-02-09.
+ * Created by Ziver
  */
-public class MulticastDNSClient {
+public class MulticastDNSClient extends ThreadedUDPNetwork implements ThreadedUDPNetworkThread{
+    private static final String MDNS_MULTICAST_ADDR = "224.0.0.251";
+    private static final int    MDNS_MULTICAST_PORT = 5353;
+
+
+    public MulticastDNSClient() throws IOException {
+        super(null, MDNS_MULTICAST_ADDR, MDNS_MULTICAST_PORT);
+        setThread( this );
+    }
+
+
+    public void sendProbe() {
+        try {
+            BinaryStructWriter out = new BinaryStructWriter();
+
+            DNSPacket header = new DNSPacket();
+            out.write(header);
+
+            DatagramPacket packet = null;
+
+            packet = new DatagramPacket(
+                    out.getByteArray(), out.getLength(),
+                    InetAddress.getByName( MDNS_MULTICAST_ADDR ),
+                    MDNS_MULTICAST_PORT );
+            send(packet);
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+    }
+
+    @Override
+    public void receivedPacket(DatagramPacket packet, ThreadedUDPNetwork network) {
+        DNSPacket header = new DNSPacket();
+        int length = BinaryStructParser.parse(header, packet.getData());
+    }
 }
diff --git a/src/zutil/net/ssdp/SSDPServer.java b/src/zutil/net/ssdp/SSDPServer.java
index 883646c..457a97f 100755
--- a/src/zutil/net/ssdp/SSDPServer.java
+++ b/src/zutil/net/ssdp/SSDPServer.java
@@ -27,7 +27,7 @@ package zutil.net.ssdp;
 import zutil.StringUtil;
 import zutil.io.StringOutputStream;
 import zutil.log.LogUtil;
-import zutil.net.http.HttpHeader;
+import zutil.net.http.HttpHeader;
 import zutil.net.http.HttpHeaderParser;
 import zutil.net.http.HttpPrintStream;
 import zutil.net.threaded.ThreadedUDPNetwork;
@@ -88,7 +88,7 @@ public class SSDPServer extends ThreadedUDPNetwork implements ThreadedUDPNetwork
 
 		services = new HashMap<String, SSDPServiceInfo>();
 
-		setChacheTime( DEFAULT_CACHE_TIME );
+		setCacheTime( DEFAULT_CACHE_TIME );
 		enableNotify( true );
 	}
 
@@ -118,7 +118,7 @@ public class SSDPServer extends ThreadedUDPNetwork implements ThreadedUDPNetwork
 	 * 
 	 * @param time is the time in seconds
 	 */
-	public void setChacheTime(int time){
+	public void setCacheTime(int time){
 		cache_time = time;
 		if( isNotifyEnabled() ){
 			enableNotify(false);
@@ -169,8 +169,8 @@ public class SSDPServer extends ThreadedUDPNetwork implements ThreadedUDPNetwork
 	public void receivedPacket(DatagramPacket packet, ThreadedUDPNetwork network) {
 		try {
 			String msg = new String( packet.getData(), packet.getOffset(), packet.getLength() );
-			HttpHeaderParser headerParser = new HttpHeaderParser( msg );
-			HttpHeader header = headerParser.read();
+			HttpHeaderParser headerParser = new HttpHeaderParser( msg );
+			HttpHeader header = headerParser.read();
 
 			// ******* Respond
 			// Check that the message is an ssdp discovery message
diff --git a/src/zutil/parser/binary/BinaryStructWriter.java b/src/zutil/parser/binary/BinaryStructWriter.java
new file mode 100755
index 0000000..53674ca
--- /dev/null
+++ b/src/zutil/parser/binary/BinaryStructWriter.java
@@ -0,0 +1,50 @@
+/*
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2015 Ziver Koc
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+package zutil.parser.binary;
+
+
+/**
+ * Created by Ziver
+ */
+/*TODO:*/ public class BinaryStructWriter {
+
+    private byte[] data;
+    private int length;
+
+
+
+    public void write(BinaryStruct struct) {
+
+    }
+
+
+    public byte[] getByteArray() {
+        return data;
+    }
+
+    public int getLength() {
+        return length;
+    }
+}