diff --git a/include/wx/ipcbase.h b/include/wx/ipcbase.h
index f4531f16f8..178cb3b31f 100644
--- a/include/wx/ipcbase.h
+++ b/include/wx/ipcbase.h
@@ -67,20 +67,40 @@ class WXDLLEXPORT wxConnectionBase: public wxObject
   virtual bool Disconnect(void) = 0;
 
   // Callbacks to SERVER - override at will
-  virtual bool OnExecute( const wxString& WXUNUSED(topic), char *WXUNUSED(data), int WXUNUSED(size), 
-                          int WXUNUSED(format) ) { return FALSE; };
-  virtual char *OnRequest( const wxString& WXUNUSED(topic), const wxString& WXUNUSED(item), 
-			     int *WXUNUSED(size), int WXUNUSED(format) ) { return (char *) NULL; };
-  virtual bool OnPoke( const wxString& WXUNUSED(topic), const wxString& WXUNUSED(item), wxChar *WXUNUSED(data), 
-		       int WXUNUSED(size), int WXUNUSED(format) ) { return FALSE; };
-  virtual bool OnStartAdvise( const wxString& WXUNUSED(topic), const wxString& WXUNUSED(item) ) 
-                              { return FALSE; };
-  virtual bool OnStopAdvise( const wxString& WXUNUSED(topic), const wxString& WXUNUSED(item) ) 
+  virtual bool OnExecute     ( const wxString& WXUNUSED(topic),
+                               char *WXUNUSED(data),
+                               int WXUNUSED(size),
+                               wxIPCFormat WXUNUSED(format) )
+                             { return FALSE; };
+
+  virtual char *OnRequest    ( const wxString& WXUNUSED(topic),
+                               const wxString& WXUNUSED(item),
+                               int *WXUNUSED(size),
+                               wxIPCFormat WXUNUSED(format) )
+                             { return (char *) NULL; };
+
+  virtual bool OnPoke        ( const wxString& WXUNUSED(topic),
+                               const wxString& WXUNUSED(item),
+                               wxChar *WXUNUSED(data),
+                               int WXUNUSED(size),
+                               wxIPCFormat WXUNUSED(format) )
+                             { return FALSE; };
+
+  virtual bool OnStartAdvise ( const wxString& WXUNUSED(topic),
+                               const wxString& WXUNUSED(item) )
+                             { return FALSE; };
+
+  virtual bool OnStopAdvise  ( const wxString& WXUNUSED(topic),
+                               const wxString& WXUNUSED(item) )
                              { return FALSE; };
 
   // Callbacks to CLIENT - override at will
-  virtual bool OnAdvise( const wxString& WXUNUSED(topic), const wxString& WXUNUSED(item), char *WXUNUSED(data), 
-			 int WXUNUSED(size), int WXUNUSED(format) ) { return FALSE; };
+  virtual bool OnAdvise      ( const wxString& WXUNUSED(topic),
+                               const wxString& WXUNUSED(item),
+                               char *WXUNUSED(data),
+                               int WXUNUSED(size),
+                               wxIPCFormat WXUNUSED(format) )
+                             { return FALSE; };
 
   // Callbacks to BOTH
 
diff --git a/include/wx/msw/dde.h b/include/wx/msw/dde.h
index f04f5cc58a..8a2062753a 100644
--- a/include/wx/msw/dde.h
+++ b/include/wx/msw/dde.h
@@ -55,7 +55,6 @@ public:
 
   // Calls that CLIENT can make
   virtual bool Execute(const wxChar *data, int size = -1, wxIPCFormat format = wxIPC_TEXT);
-  virtual bool Execute(const wxString& str) { return Execute(str, -1, wxIPC_TEXT); }
   virtual char *Request(const wxString& item, int *size = NULL, wxIPCFormat format = wxIPC_TEXT);
   virtual bool Poke(const wxString& item, wxChar *data, int size = -1, wxIPCFormat format = wxIPC_TEXT);
   virtual bool StartAdvise(const wxString& item);
@@ -67,18 +66,6 @@ public:
   // Calls that both can make
   virtual bool Disconnect(void);
 
-  // Callbacks to SERVER - override at will
-  virtual bool OnExecute(const wxString& topic, char *data, int size, wxIPCFormat format) { return FALSE; };
-  virtual char *OnRequest(const wxString& topic, const wxString& item, int *size, wxIPCFormat format) { return NULL; };
-  virtual bool OnPoke(const wxString& topic, const wxString& item, char *data, int size, wxIPCFormat format) { return FALSE; };
-  virtual bool OnStartAdvise(const wxString& topic, const wxString& item) { return FALSE; };
-  virtual bool OnStopAdvise(const wxString& topic, const wxString& item) { return FALSE; };
-
-  // Callbacks to CLIENT - override at will
-  virtual bool OnAdvise(const wxString& topic, const wxString& item, char *data, int size, wxIPCFormat format) { return FALSE; };
-
-  // Callbacks to BOTH
-
   // Default behaviour is to delete connection and return TRUE
   virtual bool OnDisconnect(void);
 
diff --git a/include/wx/sckipc.h b/include/wx/sckipc.h
index 939283e940..6f5e695f02 100644
--- a/include/wx/sckipc.h
+++ b/include/wx/sckipc.h
@@ -63,7 +63,6 @@ public:
 
   // Calls that CLIENT can make
   virtual bool Execute(const wxChar *data, int size = -1, wxIPCFormat format = wxIPC_TEXT);
-  virtual bool Execute(const wxString& str) { return Execute(str, -1, wxIPC_TEXT); }
   virtual char *Request(const wxString& item, int *size = NULL, wxIPCFormat format = wxIPC_TEXT);
   virtual bool Poke(const wxString& item, wxChar *data, int size = -1, wxIPCFormat format = wxIPC_TEXT);
   virtual bool StartAdvise(const wxString& item);
@@ -75,24 +74,6 @@ public:
   // Calls that both can make
   virtual bool Disconnect(void);
 
-  // Callbacks to SERVER - override at will
-  virtual bool OnExecute(const wxString& topic, char *data, int size, wxIPCFormat format)
-    { return wxConnectionBase::OnExecute(topic, data, size, format); };
-  virtual char *OnRequest(const wxString& topic, const wxString& item, int *size, wxIPCFormat format)
-    { return wxConnectionBase::OnRequest(topic, item, size, format); };
-  virtual bool OnPoke(const wxString& topic, const wxString& item, char *data, int size, wxIPCFormat format)
-    { return wxConnectionBase::OnPoke(topic, item, data, size, format); };
-  virtual bool OnStartAdvise(const wxString& topic, const wxString& item)
-    { return wxConnectionBase::OnStartAdvise(topic, item); };
-  virtual bool OnStopAdvise(const wxString& topic, const wxString& item)
-    { return wxConnectionBase::OnStopAdvise(topic, item); };
-
-  // Callbacks to CLIENT - override at will
-  virtual bool OnAdvise(const wxString& topic, const wxString& item, char *data, int size, wxIPCFormat format)
-    { return wxConnectionBase::OnAdvise(topic, item, data, size, format); };
-
-  // Callbacks to BOTH
-
   // Default behaviour is to delete connection and return TRUE
   virtual bool OnDisconnect(void) { delete this; return TRUE; }