diff --git a/README.md b/README.md
index 0ee9e87..e5af741 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,6 @@
-# RDPY Remote Desktop Protoc in Python
+# RDPY
+
+## Remote Desktop Protoc in Python
 
 ## Requirements
 * python2.7
@@ -8,4 +10,4 @@
 * python-qt4
 * python-qt4reactor
 
-this project is still in progress.
+this project is still in progress. 
diff --git a/README.md~ b/README.md~
new file mode 100644
index 0000000..72aa78a
--- /dev/null
+++ b/README.md~
@@ -0,0 +1,13 @@
+# RDPY
+
+## Remote Desktop Protoc in Python
+
+## Requirements
+* python2.7
+* python-twisted
+
+## Requirements for examples
+* python-qt4
+* python-qt4reactor
+
+this project is still in progress.
diff --git a/rdpy/protocol/rdp/pdu.py b/rdpy/protocol/rdp/pdu.py
index b455b46..08ce76e 100644
--- a/rdpy/protocol/rdp/pdu.py
+++ b/rdpy/protocol/rdp/pdu.py
@@ -701,7 +701,7 @@ class PDU(LayerAutomata):
     Global channel for mcs that handle session
     identification user, licensing management, and capabilities exchange
     '''
-    def __init__(self, mode, dispatcher):
+    def __init__(self, mode, ordersManager):
         '''
         Constructor
         '''
@@ -743,7 +743,7 @@ class PDU(LayerAutomata):
         self._shareId = UInt32Le()
         
         #rdp observer
-        self._dispatcher = dispatcher
+        self._ordersManager = ordersManager
         
     def connect(self):
         '''
@@ -871,7 +871,7 @@ class PDU(LayerAutomata):
         '''
         dataPDU = self.readDataPDU(data)
         if dataPDU.shareDataHeader.pduType2 == PDUType2.PDUTYPE2_UPDATE and dataPDU.pduData._value.updateType == UpdateType.UPDATETYPE_BITMAP:
-            self._dispatcher.recvBitmapUpdateDataPDU(dataPDU.pduData._value.updateData._value)
+            self._ordersManager.recvBitmapUpdateDataPDU(dataPDU.pduData._value.updateData._value)
             
         
     def sendConfirmActivePDU(self):
diff --git a/rdpy/protocol/rdp/rdp.py b/rdpy/protocol/rdp/rdp.py
index 3b451b6..3ec5486 100644
--- a/rdpy/protocol/rdp/rdp.py
+++ b/rdpy/protocol/rdp/rdp.py
@@ -5,7 +5,7 @@ from twisted.internet import protocol
 import tpkt, tpdu, mcs, pdu
 from rdpy.network.layer import LayerMode
 
-class RDP(object):
+class RDPOrdersManager(object):
     '''
     use to decode and dispatch to observer PDU messages and orders
     '''
@@ -48,9 +48,9 @@ class ClientFactory(protocol.Factory):
         '''
         Function call from twisted and build rdp protocol stack
         '''
-        rdp = RDP()
-        rdp.addObserver(self._observer)
-        return tpkt.TPKT(tpdu.TPDU(mcs.MCS(pdu.PDU(LayerMode.CLIENT, rdp))));
+        rdpOrdersManager = RDPOrdersManager()
+        rdpOrdersManager.addObserver(self._observer)
+        return tpkt.TPKT(tpdu.TPDU(mcs.MCS(pdu.PDU(LayerMode.CLIENT, rdpOrdersManager))));
         
 class RDPObserver(object):
     '''
diff --git a/rdpy/protocol/rfb/rfb.py b/rdpy/protocol/rfb/rfb.py
index dc8bfec..2149ddb 100644
--- a/rdpy/protocol/rfb/rfb.py
+++ b/rdpy/protocol/rfb/rfb.py
@@ -152,7 +152,7 @@ class Rfb(RawLayer):
     implements rfb protocol
     '''
 
-    def __init__(self, mode):
+    def __init__(self, mode, ordersManager):
         '''
         constructor
         '''
@@ -177,7 +177,7 @@ class Rfb(RawLayer):
         #current rectangle header
         self._currentRect = Rectangle()
         #client or server adaptor
-        self._observer = []
+        self._ordersManager = ordersManager
         
     def addObserver(self, observer):
         '''
@@ -355,9 +355,8 @@ class Rfb(RawLayer):
         '''
         read body of rect
         '''
-        for observer in self._observer:
-            observer.notifyFramebufferUpdate(self._currentRect.width.value, self._currentRect.height.value, self._currentRect.x.value, self._currentRect.y.value, self._pixelFormat, self._currentRect.encoding, data.getvalue())
-            
+        self._ordersManager.recvRectangle(self._currentRect, self._pixelFormat, data.getvalue())
+           
         self._nbRect = self._nbRect - 1
         #if there is another rect to read
         if self._nbRect == 0:
@@ -410,6 +409,33 @@ class Rfb(RawLayer):
         write client cut text event packet
         '''
         self.send((ClientToServerMessages.CUT_TEXT, ClientCutText(text)))
+        
+class RFBOrderManager(object):
+    '''
+    class use to manage rfb order and dispatch throw observers
+    '''
+    def __init__(self):
+        '''
+        ctor
+        '''
+        self._observers = []
+        
+    def addObserver(self, observer):
+        '''
+        Add new observer for this protocol
+        @param observer: new observer
+        '''
+        self._observers.append(observer)
+        
+    def recvRectangle(self, rectangle, pixelFormat, data):
+        '''
+        receive rectangle order
+        @param rectangle: Rectangle type header of packet
+        @param pixelFormat: pixelFormat struct of current session
+        @param data: image data
+        '''
+        for observer in self._observers:
+            observer.notifyFramebufferUpdate(rectangle.width.value, rectangle.height.value, rectangle.x.value, rectangle.y.value, self._pixelFormat, rectangle.encoding, data)
 
 class ClientFactory(protocol.Factory):
     '''
@@ -427,8 +453,9 @@ class ClientFactory(protocol.Factory):
         function call by twisted on connection
         @param addr: adress where client try to connect
         '''
-        protocol =  Rfb(LayerMode.CLIENT)
-        protocol.addObserver(self._observer)
+        orderManager = RFBOrderManager()
+        orderManager.addObserver(self._observer)
+        protocol =  Rfb(LayerMode.CLIENT, orderManager)
         self._observer.setProtocol(protocol)
         return protocol