diff --git a/dll/win32/netcfgx/inetcfgcomp_iface.c b/dll/win32/netcfgx/inetcfgcomp_iface.c
index c4204291edb..684cb266cbc 100644
--- a/dll/win32/netcfgx/inetcfgcomp_iface.c
+++ b/dll/win32/netcfgx/inetcfgcomp_iface.c
@@ -3,7 +3,8 @@
 typedef struct
 {
     const INetCfgComponent *lpVtbl;
-    const INetCfgComponentBindings *lpVtblComponentBindings;
+    const INetCfgComponentBindings *lpVtblBindings;
+    const INetCfgComponentPrivate  *lpVtblPrivate;
     LONG  ref;
     NetCfgComponentItem * pItem;
     INetCfgComponentPropertyUi * pProperty;
@@ -21,9 +22,13 @@ typedef struct
 
 static __inline INetCfgComponentImpl* impl_from_INetCfgComponentBindings(INetCfgComponentBindings *iface)
 {
-    return (INetCfgComponentImpl*)((char *)iface - FIELD_OFFSET(INetCfgComponentImpl, lpVtblComponentBindings));
+    return (INetCfgComponentImpl*)((char *)iface - FIELD_OFFSET(INetCfgComponentImpl, lpVtblBindings));
 }
 
+static __inline INetCfgComponentImpl* impl_from_INetCfgComponentPrivate(INetCfgComponentPrivate *iface)
+{
+    return (INetCfgComponentImpl*)((char *)iface - FIELD_OFFSET(INetCfgComponentImpl, lpVtblPrivate));
+}
 
 /***************************************************************
  * INetCfgComponentBindings
@@ -179,6 +184,59 @@ static const INetCfgComponentBindingsVtbl vt_NetCfgComponentBindings =
     INetCfgComponentBindings_fnMoveAfter,
 };
 
+/***************************************************************
+ * INetCfgComponentPrivate
+ */
+
+HRESULT
+WINAPI
+INetCfgComponentPrivate_fnQueryInterface(
+    INetCfgComponentPrivate *iface,
+    REFIID iid,
+    LPVOID *ppvObj)
+{
+    INetCfgComponentImpl *This = impl_from_INetCfgComponentPrivate(iface);
+    return INetCfgComponent_QueryInterface((INetCfgComponent*)This, iid, ppvObj);
+}
+
+ULONG
+WINAPI
+INetCfgComponentPrivate_fnAddRef(
+    INetCfgComponentPrivate *iface)
+{
+    INetCfgComponentImpl *This = impl_from_INetCfgComponentPrivate(iface);
+    return INetCfgComponent_AddRef((INetCfgComponent*)This);
+}
+
+ULONG
+WINAPI
+INetCfgComponentPrivate_fnRelease(
+    INetCfgComponentPrivate *iface)
+{
+    INetCfgComponentImpl *This = impl_from_INetCfgComponentPrivate(iface);
+    return INetCfgComponent_Release((INetCfgComponent*)This);
+}
+
+HRESULT
+WINAPI
+INetCfgComponentPrivate_fnUnknown1(
+    INetCfgComponentPrivate *iface,
+    DWORD dwParam1,
+    DWORD dwParam2)
+{
+//    INetCfgComponentImpl *This = impl_from_INetCfgComponentPrivate(iface);
+    ERR("INetCfgComponentPrivate_fnUnknown1(%p %lx %lx)\n", iface, dwParam1, dwParam2);
+    return S_OK;
+}
+
+static const INetCfgComponentPrivateVtbl vt_NetCfgComponentPrivate =
+{
+    INetCfgComponentPrivate_fnQueryInterface,
+    INetCfgComponentPrivate_fnAddRef,
+    INetCfgComponentPrivate_fnRelease,
+    INetCfgComponentPrivate_fnUnknown1,
+};
+
 /***************************************************************
  * INetCfgComponent
  */
@@ -202,10 +260,17 @@ INetCfgComponent_fnQueryInterface(
     }
     else if (IsEqualIID (iid, &IID_INetCfgComponentBindings))
     {
-        *ppvObj = (LPVOID)&This->lpVtblComponentBindings;
+        *ppvObj = (LPVOID)&This->lpVtblBindings;
         INetCfgComponentBindings_AddRef(iface);
         return S_OK;
     }
+    else if (IsEqualIID (iid, &IID_INetCfgComponentPrivate))
+    {
+        TRACE("IID_INetCfgComponentPrivate\n");
+        *ppvObj = (LPVOID)&This->lpVtblPrivate;
+        INetCfgComponentPrivate_AddRef(iface);
+        return S_OK;
+    }
 
     return E_NOINTERFACE;
 }
@@ -693,7 +758,8 @@ INetCfgComponent_Constructor (IUnknown * pUnkOuter, REFIID riid, LPVOID * ppv, N
 
     This->ref = 1;
     This->lpVtbl = (const INetCfgComponent*)&vt_NetCfgComponent;
-    This->lpVtblComponentBindings = (const INetCfgComponentBindings*)&vt_NetCfgComponentBindings;
+    This->lpVtblBindings = (const INetCfgComponentBindings*)&vt_NetCfgComponentBindings;
+    This->lpVtblPrivate = (const INetCfgComponentPrivate*)&vt_NetCfgComponentPrivate;
     This->pProperty = NULL;
     This->pItem = pItem;
     This->pNCfg = pNCfg;
diff --git a/sdk/lib/uuid/otherguids.c b/sdk/lib/uuid/otherguids.c
index 09b9f1e1ecd..e99016f5e64 100644
--- a/sdk/lib/uuid/otherguids.c
+++ b/sdk/lib/uuid/otherguids.c
@@ -22,6 +22,7 @@ DEFINE_GUID(IID_INetCfgClass,                0xC0E8AE97,0x306E,0x11D1,0xAA,0xCF,
 DEFINE_GUID(IID_INetCfgComponent,            0xC0E8AE99,0x306E,0x11D1,0xAA,0xCF,0x00,0x80,0x5F,0xC1,0x27,0x0E);
 DEFINE_GUID(IID_INetCfgClassSetup,           0xC0E8AE9D,0x306E,0x11D1,0xAA,0xCF,0x00,0x80,0x5F,0xC1,0x27,0x0E);
 DEFINE_GUID(IID_INetCfgComponentBindings,    0xC0E8AE9E,0x306E,0x11D1,0xAA,0xCF,0x00,0x80,0x5F,0xC1,0x27,0x0E);
+DEFINE_GUID(IID_INetCfgComponentPrivate,     0x98133273,0x4B20,0x11D1,0xAB,0x01,0x00,0x80,0x5F,0xC1,0x27,0x0E);
 DEFINE_GUID(IID_INetCfgLock,                 0xC0E8AE9F,0x306E,0x11D1,0xAA,0xCF,0x00,0x80,0x5F,0xC1,0x27,0x0E);
 DEFINE_GUID(IID_INetConnectionPropertyUi2,   0xC08956B9,0x1CD3,0x11D1,0xB1,0xC5,0x00,0x80,0x5F,0xC1,0x27,0x0E);
 DEFINE_GUID(IID_INetCfgPnpReconfigCallback,  0x8D84BD35,0xE227,0x11D2,0xB7,0x00,0x00,0xA0,0xC9,0x8A,0x6A,0x85);