diff --git a/rdpy/protocol/common/protocolbuffer.py b/rdpy/protocol/common/protocolbuffer.py
deleted file mode 100644
index 129ee4b..0000000
--- a/rdpy/protocol/common/protocolbuffer.py
+++ /dev/null
@@ -1,56 +0,0 @@
-'''
-@author: sylvain
-'''
-from twisted.internet import protocol
-from stream import Stream
-
-class ProtocolBuffer(protocol.Protocol):
-    '''
-    Inherit from protocol twisted class
-    allow this protocol to wait until expected size of packet
-    throw expect function and set a callback or by default
-    call recv function (may be override)
-    '''
-    def __init__(self):
-        '''
-        Constructor
-        '''
-        #data buffer received from twisted network layer
-        self._buffer = ""
-        
-        #len of next packet pass to next state function
-        self._expectedLen = 0
-        
-    def dataReceived(self, data):
-        '''
-        inherit from protocol class
-        main event of received data
-        '''
-        #add in buffer
-        self._buffer += data
-        #while buffer have expected size call local callback
-        while len(self._buffer) >= self._expectedLen:
-            #expected data is first expected bytes
-            expectedData = Stream(self._buffer[0:self._expectedLen])
-            #rest is for next event of automata
-            self._buffer = self._buffer[self._expectedLen:]
-            #call recv function
-            self.recvExpectedData(expectedData)
-            
-    def expect(self, expectedLen, callback = None):
-        '''
-        new expected len
-        '''
-        self._expectedLen = expectedLen
-        
-        #default callback is recvExpectedData
-        if callback is None:
-            callback = self.__class__.recvExpectedData
-        
-        self.recvExpectedData = callback
-        
-    def recvExpectedData(self, data):
-        '''
-        call when expected data is receive
-        '''
-        pass
\ No newline at end of file