diff --git a/dll/win32/netcfgx/precomp.h b/dll/win32/netcfgx/precomp.h
index 1d6c3c9120e..5dc48127705 100644
--- a/dll/win32/netcfgx/precomp.h
+++ b/dll/win32/netcfgx/precomp.h
@@ -25,6 +25,7 @@
 #include <cfgmgr32.h>
 
 #include <netcfgx_undoc.h>
+#include <netcfgn_undoc.h>
 
 #include <wine/debug.h>
 
diff --git a/dll/win32/netcfgx/tcpipconf_notify.c b/dll/win32/netcfgx/tcpipconf_notify.c
index c76494fc806..3f2336e2653 100644
--- a/dll/win32/netcfgx/tcpipconf_notify.c
+++ b/dll/win32/netcfgx/tcpipconf_notify.c
@@ -100,6 +100,7 @@ typedef struct
     const INetCfgComponentControl *lpVtbl;
     const INetCfgComponentPropertyUi *lpVtblCompPropertyUi;
     const INetCfgComponentSetup *lpVtblCompSetup;
+    const ITcpipProperties *lpVtblTcpipProperties;
     LONG ref;
     IUnknown *pUnknown;
     INetCfg *pNCfg;
@@ -159,6 +160,11 @@ static __inline LPTcpipConfNotifyImpl impl_from_INetCfgComponentSetup(INetCfgCom
     return (TcpipConfNotifyImpl*)((char *)iface - FIELD_OFFSET(TcpipConfNotifyImpl, lpVtblCompSetup));
 }
 
+static __inline LPTcpipConfNotifyImpl impl_from_ITcpipProperties(ITcpipProperties *iface)
+{
+    return (TcpipConfNotifyImpl*)((char *)iface - FIELD_OFFSET(TcpipConfNotifyImpl, lpVtblTcpipProperties));
+}
+
 INT GetSelectedItem(HWND hDlgCtrl);
 HRESULT InitializeTcpipBasicDlgCtrls(HWND hwndDlg, TcpipConfNotifyImpl *This);
 VOID InsertColumnToListView(HWND hDlgCtrl, UINT ResId, UINT SubItem, UINT Size);
@@ -3602,6 +3608,12 @@ INetCfgComponentControl_fnQueryInterface(
         INetCfgComponentControl_AddRef(iface);
         return S_OK;
     }
+    else if (IsEqualIID(iid, &IID_ITcpipProperties))
+    {
+        *ppvObj = (LPVOID*)&This->lpVtblTcpipProperties;
+        INetCfgComponentControl_AddRef(iface);
+        return S_OK;
+    }
 
     return E_NOINTERFACE;
 }
@@ -4185,6 +4197,63 @@ static const INetCfgComponentSetupVtbl vt_NetCfgComponentSetup =
     INetCfgComponentSetup_fnRemoving
 };
 
+
+/***************************************************************
+ * ITcpipProperties interface
+ */
+
+HRESULT
+WINAPI
+ITcpipProperties_fnQueryInterface(
+    ITcpipProperties *iface,
+    REFIID iid,
+    LPVOID *ppvObj)
+{
+    TRACE("ITcpipProperties_fnQueryInterface()\n");
+    TcpipConfNotifyImpl *This = impl_from_ITcpipProperties(iface);
+    return INetCfgComponentControl_QueryInterface((INetCfgComponentControl*)This, iid, ppvObj);
+}
+
+ULONG
+WINAPI
+ITcpipProperties_fnAddRef(
+    ITcpipProperties *iface)
+{
+    TRACE("ITcpipProperties_fnAddRef()\n");
+    TcpipConfNotifyImpl *This = impl_from_ITcpipProperties(iface);
+    return INetCfgComponentControl_AddRef((INetCfgComponentControl*)This);
+}
+
+ULONG
+WINAPI
+ITcpipProperties_fnRelease(
+    ITcpipProperties *iface)
+{
+    TRACE("ITcpipProperties_fnRelease()\n");
+    TcpipConfNotifyImpl *This = impl_from_ITcpipProperties(iface);
+    return INetCfgComponentControl_Release((INetCfgComponentControl*)This);
+}
+
+HRESULT
+WINAPI
+ITcpipProperties_fnUnknown1(
+    ITcpipProperties *iface,
+    DWORD dwParam1,
+    DWORD dwParam2)
+{
+    ERR("ITcpipProperties_fnUnknown1(0x%lx 0x%lx)\n", dwParam1, dwParam2);
+//    TcpipConfNotifyImpl *This = impl_from_ITcpipProperties(iface);
+    return S_OK;
+}
+
+static const ITcpipPropertiesVtbl vt_TcpipProperties =
+{
+    ITcpipProperties_fnQueryInterface,
+    ITcpipProperties_fnAddRef,
+    ITcpipProperties_fnRelease,
+    ITcpipProperties_fnUnknown1,
+};
+
 HRESULT
 WINAPI
 TcpipConfigNotify_Constructor (IUnknown * pUnkOuter, REFIID riid, LPVOID * ppv)
@@ -4202,6 +4271,7 @@ TcpipConfigNotify_Constructor (IUnknown * pUnkOuter, REFIID riid, LPVOID * ppv)
     This->lpVtbl = (const INetCfgComponentControl*)&vt_NetCfgComponentControl;
     This->lpVtblCompPropertyUi = (const INetCfgComponentPropertyUi*)&vt_NetCfgComponentPropertyUi;
     This->lpVtblCompSetup = (const INetCfgComponentSetup*)&vt_NetCfgComponentSetup;
+    This->lpVtblTcpipProperties = (const ITcpipProperties*)&vt_TcpipProperties;
     This->pNCfg = NULL;
     This->pUnknown = NULL;
     This->pNComp = NULL;
diff --git a/sdk/include/reactos/netcfgn_undoc.h b/sdk/include/reactos/netcfgn_undoc.h
new file mode 100644
index 00000000000..0e104bd504f
--- /dev/null
+++ b/sdk/include/reactos/netcfgn_undoc.h
@@ -0,0 +1,27 @@
+#ifndef __NETCFGN_UNDOC_H__
+#define __NETCFGN_UNDOC_H__
+
+#undef  INTERFACE
+#define INTERFACE ITcpipProperties
+DECLARE_INTERFACE_(ITcpipProperties, IUnknown)
+{
+    STDMETHOD_(HRESULT,QueryInterface)(THIS_ REFIID riid, void **ppv) PURE;
+    STDMETHOD_(ULONG,AddRef)(THIS)  PURE;
+    STDMETHOD_(ULONG,Release) (THIS) PURE;
+    STDMETHOD_(HRESULT,Unknown1)(THIS_ DWORD dwParam1, DWORD dwParam2) PURE;
+    /* ??? */
+};
+#undef INTERFACE
+
+EXTERN_C const IID IID_ITcpipProperties;
+
+#if !defined(__cplusplus) || defined(CINTERFACE)
+/*** IUnknown methods ***/
+#define ITcpipProperties_QueryInterface(p,a,b) (p)->lpVtbl->QueryInterface(p,a,b)
+#define ITcpipProperties_AddRef(p)             (p)->lpVtbl->AddRef(p)
+#define ITcpipProperties_Release(p)            (p)->lpVtbl->Release(p)
+#define ITcpipProperties_Unknown1(p,a,b)       (p)->lpVtbl->Unknown1(p,a,b)
+/* ??? */
+#endif
+
+#endif /* __NETCFGX_UNDOC_H__ */