diff --git a/dlls/ddraw/ddraw.c b/dlls/ddraw/ddraw.c
index 18f130dccf8..b185725fb3c 100644
--- a/dlls/ddraw/ddraw.c
+++ b/dlls/ddraw/ddraw.c
@@ -111,7 +111,7 @@ IDirectDrawImpl_QueryInterface(IDirectDraw7 *iface,
     if ( IsEqualGUID( &IID_IUnknown, refiid ) ||
          IsEqualGUID( &IID_IDirectDraw7, refiid ) )
     {
-        *obj = &This->IDirectDraw7_vtbl;
+        *obj = This;
         TRACE("(%p) Returning IDirectDraw7 interface at %p\n", This, *obj);
     }
     else if ( IsEqualGUID( &IID_IDirectDraw4, refiid ) )
@@ -1720,7 +1720,7 @@ IDirectDrawImpl_RecreateSurfacesCallback(IDirectDrawSurface7 *surf,
          * new surface
          */
         parImpl = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*parImpl));
-        parImpl->IParent_vtbl = &IParent_Vtbl;
+        parImpl->lpVtbl = &IParent_Vtbl;
         parImpl->ref = 1;
 
         Parent = (IUnknown *) parImpl;
@@ -1985,7 +1985,7 @@ IDirectDrawImpl_CreateNewSurface(IDirectDrawImpl *This,
         ERR("(%p) Error allocating memory for a surface\n", This);
         return DDERR_OUTOFVIDEOMEMORY;
     }
-    (*ppSurf)->IDirectDrawSurface7_vtbl = &IDirectDrawSurface7_Vtbl;
+    (*ppSurf)->lpVtbl = &IDirectDrawSurface7_Vtbl;
     (*ppSurf)->IDirectDrawSurface3_vtbl = &IDirectDrawSurface3_Vtbl;
     (*ppSurf)->IDirectDrawGammaControl_vtbl = &IDirectDrawGammaControl_Vtbl;
     (*ppSurf)->IDirect3DTexture2_vtbl = &IDirect3DTexture2_Vtbl;
@@ -2024,7 +2024,7 @@ IDirectDrawImpl_CreateNewSurface(IDirectDrawImpl *This,
             return DDERR_OUTOFMEMORY;
         }
         parImpl->ref = 1;
-        parImpl->IParent_vtbl = &IParent_Vtbl;
+        parImpl->lpVtbl = &IParent_Vtbl;
         Parent = (IUnknown *)parImpl;
         TRACE("Using IParent interface %p as parent\n", parImpl);
     }
@@ -3128,7 +3128,7 @@ DirectDrawCreateClipper(DWORD Flags,
         return E_OUTOFMEMORY;
     }
 
-    object->IDirectDrawClipper_vtbl = &IDirectDrawClipper_Vtbl;
+    object->lpVtbl = &IDirectDrawClipper_Vtbl;
     object->ref = 1;
     object->wineD3DClipper = pWineDirect3DCreateClipper((IUnknown *) object);
     if(!object->wineD3DClipper)
@@ -3213,7 +3213,7 @@ IDirectDrawImpl_CreatePalette(IDirectDraw7 *iface,
         return E_OUTOFMEMORY;
     }
 
-    object->IDirectDrawPalette_vtbl = &IDirectDrawPalette_Vtbl;
+    object->lpVtbl = &IDirectDrawPalette_Vtbl;
     object->ref = 1;
     object->ddraw_owner = This;
 
@@ -3592,7 +3592,7 @@ static HRESULT STDMETHODCALLTYPE device_parent_CreateSwapChain(IWineD3DDevicePar
         return DDERR_OUTOFVIDEOMEMORY;
     }
 
-    object->IParent_vtbl = &IParent_Vtbl;
+    object->lpVtbl = &IParent_Vtbl;
     object->ref = 1;
 
     hr = IWineD3DDevice_CreateSwapChain(This->wineD3DDevice, present_parameters,
diff --git a/dlls/ddraw/ddraw_private.h b/dlls/ddraw/ddraw_private.h
index cc837e682c8..8b401d5ccfe 100644
--- a/dlls/ddraw/ddraw_private.h
+++ b/dlls/ddraw/ddraw_private.h
@@ -98,7 +98,7 @@ struct FvfToDecl
 struct IDirectDrawImpl
 {
     /* IUnknown fields */
-    const IDirectDraw7Vtbl *IDirectDraw7_vtbl;
+    const IDirectDraw7Vtbl *lpVtbl;
     const IDirectDraw4Vtbl *IDirectDraw4_vtbl;
     const IDirectDraw3Vtbl *IDirectDraw3_vtbl;
     const IDirectDraw2Vtbl *IDirectDraw2_vtbl;
@@ -257,7 +257,7 @@ extern WINED3DSURFTYPE DefaultSurfaceType;
 struct IDirectDrawSurfaceImpl
 {
     /* IUnknown fields */
-    const IDirectDrawSurface7Vtbl *IDirectDrawSurface7_vtbl;
+    const IDirectDrawSurface7Vtbl *lpVtbl;
     const IDirectDrawSurface3Vtbl *IDirectDrawSurface3_vtbl;
     const IDirectDrawGammaControlVtbl *IDirectDrawGammaControl_vtbl;
     const IDirect3DTexture2Vtbl *IDirect3DTexture2_vtbl;
@@ -345,7 +345,7 @@ static inline IDirectDrawSurfaceImpl *surface_from_surface3(IDirectDrawSurface3
 struct IParentImpl
 {
     /* IUnknown fields */
-    const IParentVtbl *IParent_vtbl;
+    const IParentVtbl *lpVtbl;
     LONG                    ref;
 
     /* IParentImpl fields */
@@ -376,7 +376,7 @@ struct HandleEntry
 struct IDirect3DDeviceImpl
 {
     /* IUnknown */
-    const IDirect3DDevice7Vtbl *IDirect3DDevice7_vtbl;
+    const IDirect3DDevice7Vtbl *lpVtbl;
     const IDirect3DDevice3Vtbl *IDirect3DDevice3_vtbl;
     const IDirect3DDevice2Vtbl *IDirect3DDevice2_vtbl;
     const IDirect3DDeviceVtbl *IDirect3DDevice_vtbl;
@@ -478,7 +478,7 @@ struct EnumZBufferFormatsData
 struct IDirectDrawClipperImpl
 {
     /* IUnknown fields */
-    const IDirectDrawClipperVtbl *IDirectDrawClipper_vtbl;
+    const IDirectDrawClipperVtbl *lpVtbl;
     LONG ref;
 
     IWineD3DClipper           *wineD3DClipper;
@@ -495,7 +495,7 @@ typeof(WineDirect3DCreateClipper) *pWineDirect3DCreateClipper;
 struct IDirectDrawPaletteImpl
 {
     /* IUnknown fields */
-    const IDirectDrawPaletteVtbl *IDirectDrawPalette_vtbl;
+    const IDirectDrawPaletteVtbl *lpVtbl;
     LONG ref;
 
     /* WineD3D uplink */
@@ -512,7 +512,7 @@ extern const IDirectDrawPaletteVtbl IDirectDrawPalette_Vtbl;
  ******************************************************************************/
 typedef struct
 {
-    const IClassFactoryVtbl *IClassFactory_vtbl;
+    const IClassFactoryVtbl *lpVtbl;
 
     LONG ref;
     HRESULT (*pfnCreateInstance)(IUnknown *pUnkOuter, REFIID iid, LPVOID *ppObj);
@@ -531,7 +531,7 @@ struct object_creation_info
  ******************************************************************************/
 struct IDirect3DLightImpl
 {
-    const IDirect3DLightVtbl *IDirect3DLight_vtbl;
+    const IDirect3DLightVtbl *lpVtbl;
     LONG ref;
 
     /* IDirect3DLight fields */
@@ -567,7 +567,7 @@ void light_desactivate(IDirect3DLightImpl* This);
  ******************************************************************************/
 struct IDirect3DMaterialImpl
 {
-    const IDirect3DMaterial3Vtbl *IDirect3DMaterial3_vtbl;
+    const IDirect3DMaterial3Vtbl *lpVtbl;
     const IDirect3DMaterial2Vtbl *IDirect3DMaterial2_vtbl;
     const IDirect3DMaterialVtbl *IDirect3DMaterial_vtbl;
     LONG  ref;
@@ -595,7 +595,7 @@ void material_activate(IDirect3DMaterialImpl* This);
  *****************************************************************************/
 struct IDirect3DViewportImpl
 {
-    const IDirect3DViewport3Vtbl *IDirect3DViewport3_vtbl;
+    const IDirect3DViewport3Vtbl *lpVtbl;
     LONG ref;
 
     /* IDirect3DViewport fields */
@@ -640,7 +640,7 @@ void viewport_activate(IDirect3DViewportImpl* This, BOOL ignore_lights);
 struct IDirect3DExecuteBufferImpl
 {
     /* IUnknown */
-    const IDirect3DExecuteBufferVtbl *IDirect3DExecuteBuffer_vtbl;
+    const IDirect3DExecuteBufferVtbl *lpVtbl;
     LONG                 ref;
 
     /* IDirect3DExecuteBuffer fields */
@@ -676,7 +676,7 @@ IDirect3DExecuteBufferImpl_Execute(IDirect3DExecuteBufferImpl *This,
 struct IDirect3DVertexBufferImpl
 {
     /*** IUnknown Methods ***/
-    const IDirect3DVertexBuffer7Vtbl *IDirect3DVertexBuffer7_vtbl;
+    const IDirect3DVertexBuffer7Vtbl *lpVtbl;
     const IDirect3DVertexBufferVtbl *IDirect3DVertexBuffer_vtbl;
     LONG                 ref;
 
diff --git a/dlls/ddraw/device.c b/dlls/ddraw/device.c
index cdcc7197989..db43b5579f3 100644
--- a/dlls/ddraw/device.c
+++ b/dlls/ddraw/device.c
@@ -737,7 +737,7 @@ IDirect3DDeviceImpl_1_CreateExecuteBuffer(IDirect3DDevice *iface,
         return DDERR_OUTOFMEMORY;
     }
 
-    object->IDirect3DExecuteBuffer_vtbl = &IDirect3DExecuteBuffer_Vtbl;
+    object->lpVtbl = &IDirect3DExecuteBuffer_Vtbl;
     object->ref = 1;
     object->d3ddev = This;
 
diff --git a/dlls/ddraw/direct3d.c b/dlls/ddraw/direct3d.c
index 573405b66ae..b5a4d0650cc 100644
--- a/dlls/ddraw/direct3d.c
+++ b/dlls/ddraw/direct3d.c
@@ -430,7 +430,7 @@ IDirect3DImpl_3_CreateLight(IDirect3D3 *iface,
     if (object == NULL)
         return DDERR_OUTOFMEMORY;
 
-    object->IDirect3DLight_vtbl = &IDirect3DLight_Vtbl;
+    object->lpVtbl = &IDirect3DLight_Vtbl;
     object->ref = 1;
     object->ddraw = This;
     object->next = NULL;
@@ -506,7 +506,7 @@ IDirect3DImpl_3_CreateMaterial(IDirect3D3 *iface,
     if (object == NULL)
         return DDERR_OUTOFMEMORY;
 
-    object->IDirect3DMaterial3_vtbl = &IDirect3DMaterial3_Vtbl;
+    object->lpVtbl = &IDirect3DMaterial3_Vtbl;
     object->IDirect3DMaterial2_vtbl = &IDirect3DMaterial2_Vtbl;
     object->IDirect3DMaterial_vtbl = &IDirect3DMaterial_Vtbl;
     object->ref = 1;
@@ -595,7 +595,7 @@ IDirect3DImpl_3_CreateViewport(IDirect3D3 *iface,
     if (object == NULL)
         return DDERR_OUTOFMEMORY;
 
-    object->IDirect3DViewport3_vtbl = &IDirect3DViewport3_Vtbl;
+    object->lpVtbl = &IDirect3DViewport3_Vtbl;
     object->ref = 1;
     object->ddraw = This;
     object->activate = viewport_activate;
@@ -784,9 +784,9 @@ IDirect3DImpl_7_CreateDevice(IDirect3D7 *iface,
     }
 
     if (This->cooperative_level & DDSCL_FPUPRESERVE)
-        object->IDirect3DDevice7_vtbl = &IDirect3DDevice7_FPUPreserve_Vtbl;
+        object->lpVtbl = &IDirect3DDevice7_FPUPreserve_Vtbl;
     else
-        object->IDirect3DDevice7_vtbl = &IDirect3DDevice7_FPUSetup_Vtbl;
+        object->lpVtbl = &IDirect3DDevice7_FPUSetup_Vtbl;
 
     object->IDirect3DDevice3_vtbl = &IDirect3DDevice3_Vtbl;
     object->IDirect3DDevice2_vtbl = &IDirect3DDevice2_Vtbl;
@@ -815,7 +815,7 @@ IDirect3DImpl_7_CreateDevice(IDirect3D7 *iface,
         LeaveCriticalSection(&ddraw_cs);
         return DDERR_OUTOFMEMORY;
     }
-    IndexBufferParent->IParent_vtbl = &IParent_Vtbl;
+    IndexBufferParent->lpVtbl = &IParent_Vtbl;
     IndexBufferParent->ref = 1;
 
     /* Create an Index Buffer. WineD3D needs one for Drawing indexed primitives
@@ -1017,7 +1017,7 @@ IDirect3DImpl_7_CreateVertexBuffer(IDirect3D7 *iface,
     }
 
     object->ref = 1;
-    object->IDirect3DVertexBuffer7_vtbl = &IDirect3DVertexBuffer7_Vtbl;
+    object->lpVtbl = &IDirect3DVertexBuffer7_Vtbl;
     object->IDirect3DVertexBuffer_vtbl = &IDirect3DVertexBuffer1_Vtbl;
 
     object->Caps = Desc->dwCaps;
diff --git a/dlls/ddraw/main.c b/dlls/ddraw/main.c
index 5f49b54af1a..6908a628d15 100644
--- a/dlls/ddraw/main.c
+++ b/dlls/ddraw/main.c
@@ -171,11 +171,11 @@ DDRAW_Create(const GUID *guid,
      * IDirectDraw and IDirect3D are the same object,
      * QueryInterface is used to get other interfaces.
      */
+    This->lpVtbl = &IDirectDraw7_Vtbl;
     This->IDirectDraw_vtbl = &IDirectDraw1_Vtbl;
     This->IDirectDraw2_vtbl = &IDirectDraw2_Vtbl;
     This->IDirectDraw3_vtbl = &IDirectDraw3_Vtbl;
     This->IDirectDraw4_vtbl = &IDirectDraw4_Vtbl;
-    This->IDirectDraw7_vtbl = &IDirectDraw7_Vtbl;
     This->IDirect3D_vtbl = &IDirect3D1_Vtbl;
     This->IDirect3D2_vtbl = &IDirect3D2_Vtbl;
     This->IDirect3D3_vtbl = &IDirect3D3_Vtbl;
@@ -699,7 +699,7 @@ HRESULT WINAPI DllGetClassObject(REFCLSID rclsid, REFIID riid, LPVOID *ppv)
     factory = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*factory));
     if (factory == NULL) return E_OUTOFMEMORY;
 
-    factory->IClassFactory_vtbl = &IClassFactory_Vtbl;
+    factory->lpVtbl = &IClassFactory_Vtbl;
     factory->ref = 1;
 
     factory->pfnCreateInstance = object_creation[i].pfnCreateInstance;
diff --git a/dlls/ddraw/material.c b/dlls/ddraw/material.c
index 45fca9e0bfe..6f162f7c828 100644
--- a/dlls/ddraw/material.c
+++ b/dlls/ddraw/material.c
@@ -108,8 +108,8 @@ IDirect3DMaterialImpl_QueryInterface(IDirect3DMaterial3 *iface,
 	return S_OK;
     }
     if ( IsEqualGUID( &IID_IDirect3DMaterial3, riid ) ) {
-        IDirect3DMaterial_AddRef((IDirect3DMaterial2 *)&This->IDirect3DMaterial3_vtbl);
-        *obp = &This->IDirect3DMaterial3_vtbl;
+        IDirect3DMaterial3_AddRef((IDirect3DMaterial3 *)This);
+        *obp = This;
 	TRACE("  Creating IDirect3DMaterial3 interface %p\n", *obp);
 	return S_OK;
     }