diff --git a/dlls/avifil32/avifile.c b/dlls/avifil32/avifile.c
index 653c51c5287..fdfacfcc84d 100644
--- a/dlls/avifil32/avifile.c
+++ b/dlls/avifil32/avifile.c
@@ -78,7 +78,7 @@ struct ICOM_VTABLE(IAVIStream) iavist = {
 
 typedef struct IAVIStreamImpl {
 	/* IUnknown stuff */
-	ICOM_VTABLE(IAVIStream)*	lpvtbl;
+	ICOM_VFIELD(IAVIStream);
 	DWORD		ref;
 	/* IAVIStream stuff */
 	LPVOID		lpInputFormat;
@@ -109,7 +109,7 @@ AVIFileInit(void) {
 
 typedef struct IAVIFileImpl {
 	/* IUnknown stuff */
-	ICOM_VTABLE(IAVIFile)*	lpvtbl;
+	ICOM_VFIELD(IAVIFile);
 	DWORD				ref;
 	/* IAVIFile stuff... */
 } IAVIFileImpl;
@@ -168,7 +168,7 @@ static HRESULT WINAPI IAVIFile_fnCreateStream(IAVIFile*iface,PAVISTREAM*avis,AVI
 	FIXME_(avifile)("(%p,%p,%p)\n",This,avis,asi);
 	istream = (IAVIStreamImpl*)HeapAlloc(GetProcessHeap(),HEAP_ZERO_MEMORY,sizeof(IAVIStreamImpl));
 	istream->ref = 1;
-	istream->lpvtbl = &iavist;
+	ICOM_VTBL(istream) = &iavist;
 	fcc[4]='\0';
 	memcpy(fcc,(char*)&(asi->fccType),4);
 	FIXME_(avifile)("\tfccType '%s'\n",fcc);
@@ -222,7 +222,7 @@ HRESULT WINAPI AVIFileOpenA(
 	FIXME_(avifile)("(%p,%s,0x%08lx,%s),stub!\n",ppfile,szFile,(DWORD)uMode,buf);
 	iavi = (IAVIFileImpl*)HeapAlloc(GetProcessHeap(),HEAP_ZERO_MEMORY,sizeof(IAVIFileImpl));
 	iavi->ref = 1;
-	iavi->lpvtbl = &iavift;
+	ICOM_VTBL(iavi) = &iavift;
 	*ppfile = (LPVOID)iavi;
 	return S_OK;
 }
diff --git a/dlls/dplayx/dpclassfactory.c b/dlls/dplayx/dpclassfactory.c
index b418efa386b..65a10be88b4 100644
--- a/dlls/dplayx/dpclassfactory.c
+++ b/dlls/dplayx/dpclassfactory.c
@@ -14,7 +14,7 @@ DEFAULT_DEBUG_CHANNEL(dplay)
 typedef struct
 {
     /* IUnknown fields */
-    ICOM_VTABLE(IClassFactory)* lpvtbl;
+    ICOM_VFIELD(IClassFactory);
     DWORD                       ref;
 } IClassFactoryImpl;
 
diff --git a/dlls/dsound/dsound_main.c b/dlls/dsound/dsound_main.c
index 61f7de78cee..788e80119b7 100644
--- a/dlls/dsound/dsound_main.c
+++ b/dlls/dsound/dsound_main.c
@@ -86,7 +86,7 @@ typedef struct IDirectSound3DBufferImpl IDirectSound3DBufferImpl;
 struct IDirectSoundImpl
 {
     /* IUnknown fields */
-    ICOM_VTABLE(IDirectSound)* lpvtbl;
+    ICOM_VFIELD(IDirectSound);
     DWORD                      ref;
     /* IDirectSoundImpl fields */
     DWORD                       priolevel;
@@ -103,7 +103,7 @@ struct IDirectSoundImpl
 struct IDirectSoundBufferImpl
 {
     /* IUnknown fields */
-    ICOM_VTABLE(IDirectSoundBuffer)* lpvtbl;
+    ICOM_VFIELD(IDirectSoundBuffer);
     DWORD                            ref;
     /* IDirectSoundBufferImpl fields */
     WAVEFORMATEX              wfx;
@@ -130,7 +130,7 @@ struct IDirectSoundBufferImpl
 struct IDirectSoundNotifyImpl
 {
     /* IUnknown fields */
-    ICOM_VTABLE(IDirectSoundNotify)* lpvtbl;
+    ICOM_VFIELD(IDirectSoundNotify);
     DWORD                            ref;
     /* IDirectSoundNotifyImpl fields */
     IDirectSoundBufferImpl* dsb;
@@ -142,7 +142,7 @@ struct IDirectSoundNotifyImpl
 struct IDirectSound3DListenerImpl
 {
     /* IUnknown fields */
-    ICOM_VTABLE(IDirectSound3DListener)* lpvtbl;
+    ICOM_VFIELD(IDirectSound3DListener);
     DWORD                                ref;
     /* IDirectSound3DListenerImpl fields */
     IDirectSoundBufferImpl* dsb;
@@ -156,7 +156,7 @@ struct IDirectSound3DListenerImpl
 struct IDirectSound3DBufferImpl
 {
     /* IUnknown fields */
-    ICOM_VTABLE(IDirectSound3DBuffer)* lpvtbl;
+    ICOM_VFIELD(IDirectSound3DBuffer);
     DWORD                              ref;
     /* IDirectSound3DBufferImpl fields */
     IDirectSoundBufferImpl* dsb;
@@ -976,7 +976,7 @@ static DWORD WINAPI IDirectSoundBufferImpl_Release(LPDIRECTSOUNDBUFFER iface) {
 
 	DeleteCriticalSection(&(This->lock));
 
-	if (This->ds3db && This->ds3db->lpvtbl)
+	if (This->ds3db && ICOM_VTBL(This->ds3db))
 		IDirectSound3DBuffer_Release((LPDIRECTSOUND3DBUFFER)This->ds3db);
 
 	if (This->parent)
@@ -1242,7 +1242,7 @@ static HRESULT WINAPI IDirectSoundBufferImpl_QueryInterface(
 		dsn->ref = 1;
 		dsn->dsb = This;
 		IDirectSoundBuffer_AddRef(iface);
-		dsn->lpvtbl = &dsnvt;
+		ICOM_VTBL(dsn) = &dsnvt;
 		*ppobj = (LPVOID)dsn;
 		return S_OK;
 	}
@@ -1356,7 +1356,7 @@ static HRESULT WINAPI IDirectSoundImpl_CreateSoundBuffer(
 	(*ippdsb)->playpos = 0;
 	(*ippdsb)->writepos = 0;
 	(*ippdsb)->parent = NULL;
-	(*ippdsb)->lpvtbl = &dsbvt;
+	ICOM_VTBL(*ippdsb) = &dsbvt;
 	(*ippdsb)->dsound = This;
 	(*ippdsb)->playing = 0;
 	(*ippdsb)->lVolAdjust = (1 << 15);
@@ -1392,7 +1392,7 @@ static HRESULT WINAPI IDirectSoundImpl_CreateSoundBuffer(
 			0,sizeof(*ds3db));
 		ds3db->ref = 1;
 		ds3db->dsb = (*ippdsb);
-		ds3db->lpvtbl = &ds3dbvt;
+		ICOM_VTBL(ds3db) = &ds3dbvt;
 		(*ippdsb)->ds3db = ds3db;
 		ds3db->ds3db.dwSize = sizeof(DS3DBUFFER);
 		ds3db->ds3db.vPosition.x.x = 0.0;
@@ -1543,7 +1543,7 @@ static HRESULT WINAPI IDirectSoundImpl_QueryInterface(
 		This->listener = (IDirectSound3DListenerImpl*)HeapAlloc(
 			GetProcessHeap(), 0, sizeof(*(This->listener)));
 		This->listener->ref = 1;
-		This->listener->lpvtbl = &ds3dlvt;
+		ICOM_VTBL(This->listener) = &ds3dlvt;
 		IDirectSound_AddRef(iface);
 		This->listener->ds3dl.dwSize = sizeof(DS3DLISTENER);
 		This->listener->ds3dl.vPosition.x.x = 0.0;
@@ -2060,7 +2060,7 @@ static DWORD WINAPI DSOUND_MixPrimary(void)
 	for (i = dsound->nrofbuffers - 1; i >= 0; i--) {
 		dsb = dsound->buffers[i];
 
-		if (!dsb || !(dsb->lpvtbl))
+		if (!dsb || !(ICOM_VTBL(dsb)))
 			continue;
 		IDirectSoundBuffer_AddRef((LPDIRECTSOUNDBUFFER)dsb);
  		if (dsb->buflen && dsb->playing) {
@@ -2294,7 +2294,7 @@ HRESULT WINAPI DirectSoundCreate(REFGUID lpGUID,LPDIRECTSOUND *ppDS,IUnknown *pU
 		return DSERR_OUTOFMEMORY;
 
 	(*ippDS)->ref		= 1;
-	(*ippDS)->lpvtbl		= &dsvt;
+	ICOM_VTBL(*ippDS)	= &dsvt;
 	(*ippDS)->buffers	= NULL;
 	(*ippDS)->nrofbuffers	= 0;
 
@@ -2339,7 +2339,7 @@ HRESULT WINAPI DirectSoundCreate(REFGUID lpGUID,LPDIRECTSOUND *ppDS,IUnknown *pU
 typedef struct
 {
     /* IUnknown fields */
-    ICOM_VTABLE(IClassFactory)* lpvtbl;
+    ICOM_VFIELD(IClassFactory);
     DWORD                       ref;
 } IClassFactoryImpl;
 
diff --git a/dlls/ole32/bindctx.c b/dlls/ole32/bindctx.c
index 97e9b1c53fe..546189b5159 100644
--- a/dlls/ole32/bindctx.c
+++ b/dlls/ole32/bindctx.c
@@ -31,7 +31,7 @@ typedef struct BindCtxObject{
 /* BindCtx data strucrture */
 typedef struct BindCtxImpl{
 
-    ICOM_VTABLE(IBindCtx)*  lpvtbl; /* VTable relative to the IBindCtx interface.*/
+    ICOM_VFIELD(IBindCtx); /* VTable relative to the IBindCtx interface.*/
                                      
     ULONG ref; /* reference counter for this object */
 
@@ -161,7 +161,7 @@ HRESULT WINAPI BindCtxImpl_Construct(BindCtxImpl* This)
     TRACE("(%p)\n",This);
 
     /* Initialize the virtual function table.*/
-    This->lpvtbl       = &VT_BindCtxImpl;
+    ICOM_VTBL(This)    = &VT_BindCtxImpl;
     This->ref          = 0;
 
     /* Initialize the BIND_OPTS2 structure */
diff --git a/dlls/ole32/clipboard.c b/dlls/ole32/clipboard.c
index 952bb88e2b1..372f9bffeb2 100644
--- a/dlls/ole32/clipboard.c
+++ b/dlls/ole32/clipboard.c
@@ -109,7 +109,7 @@ typedef struct OLEClipbrd OLEClipbrd;
 typedef struct 
 {
   /* IEnumFORMATETC VTable */
-  ICOM_VTABLE(IEnumFORMATETC)* lpvtbl;
+  ICOM_VFIELD(IEnumFORMATETC);
   
   /* IEnumFORMATETC fields */
   UINT                         posFmt;    /* current enumerator position */
@@ -1434,7 +1434,7 @@ LPENUMFORMATETC OLEClipbrd_IEnumFORMATETC_Construct(UINT cfmt, const FORMATETC a
     return NULL;
   
   ef->ref = 0;
-  ef->lpvtbl = &efvt;
+  ICOM_VTBL(ef) = &efvt;
   ef->pUnkDataObj = pUnkDataObj;
   
   ef->posFmt = 0;
diff --git a/dlls/ole32/compositemoniker.c b/dlls/ole32/compositemoniker.c
index d727e4d4e31..a273f81b20e 100644
--- a/dlls/ole32/compositemoniker.c
+++ b/dlls/ole32/compositemoniker.c
@@ -38,7 +38,7 @@ typedef struct CompositeMonikerImpl{
 /* EnumMoniker data structure */
 typedef struct EnumMonikerImpl{
 
-    ICOM_VTABLE(IEnumMoniker)*  lpvtbl;  /* VTable relative to the IEnumMoniker interface.*/
+    ICOM_VFIELD(IEnumMoniker);  /* VTable relative to the IEnumMoniker interface.*/
 
     ULONG ref; /* reference counter for this object */
 
@@ -1606,7 +1606,7 @@ HRESULT WINAPI EnumMonikerImpl_CreateEnumMoniker(IMoniker** tabMoniker,
         return E_INVALIDARG;
     
     /* Initialize the virtual function table. */
-    newEnumMoniker->lpvtbl      = &VT_EnumMonikerImpl;
+    ICOM_VTBL(newEnumMoniker)    = &VT_EnumMonikerImpl;
     newEnumMoniker->ref          = 0;
 
     newEnumMoniker->tabSize=tabSize;
diff --git a/dlls/ole32/hglobalstream.c b/dlls/ole32/hglobalstream.c
index 73614253b7f..c0cd32379db 100644
--- a/dlls/ole32/hglobalstream.c
+++ b/dlls/ole32/hglobalstream.c
@@ -27,8 +27,8 @@ DEFAULT_DEBUG_CHANNEL(storage)
  */
 struct HGLOBALStreamImpl
 {
-  ICOM_VTABLE(IStream) *lpvtbl;  /* Needs to be the first item in the stuct
-				  * since we want to cast this in a IStream pointer */
+  ICOM_VFIELD(IStream);  /* Needs to be the first item in the stuct
+			  * since we want to cast this in a IStream pointer */
   
   /*
    * Reference count
@@ -201,7 +201,7 @@ HRESULT WINAPI GetHGlobalFromStream(IStream* pstm, HGLOBAL* phglobal)
   /*
    * Verify that the stream object was created with CreateStreamOnHGlobal.
    */
-  if (pStream->lpvtbl == &HGLOBALStreamImpl_Vtbl)
+  if (ICOM_VTBL(pStream) == &HGLOBALStreamImpl_Vtbl)
     *phglobal = pStream->supportHandle;
   else
   {
@@ -237,7 +237,7 @@ HGLOBALStreamImpl* HGLOBALStreamImpl_Construct(
     /*
      * Set-up the virtual function table and reference count.
      */
-    newStream->lpvtbl = &HGLOBALStreamImpl_Vtbl;
+    ICOM_VTBL(newStream) = &HGLOBALStreamImpl_Vtbl;
     newStream->ref    = 0;
     
     /*
diff --git a/dlls/ole32/ifs.c b/dlls/ole32/ifs.c
index 2bbdc223bca..3033bf8c097 100644
--- a/dlls/ole32/ifs.c
+++ b/dlls/ole32/ifs.c
@@ -26,7 +26,7 @@ DEFAULT_DEBUG_CHANNEL(relay)
 typedef struct
 {
     /* IUnknown fields */
-    ICOM_VTABLE(IUnknown)* lpvtbl;
+    ICOM_VFIELD(IUnknown);
     DWORD                  ref;
 } IUnknownImpl;
 
@@ -85,7 +85,7 @@ IUnknown_Constructor() {
 	IUnknownImpl*	unk;
 
 	unk = (IUnknownImpl*)HeapAlloc(GetProcessHeap(),0,sizeof(IUnknownImpl));
-	unk->lpvtbl	= &uvt;
+	ICOM_VTBL(unk)	= &uvt;
 	unk->ref	= 1;
 	return (LPUNKNOWN)unk;
 }
@@ -97,7 +97,7 @@ IUnknown_Constructor() {
 typedef struct
 {
         /* IUnknown fields */
-        ICOM_VTABLE(IMalloc16)* lpvtbl;
+        ICOM_VFIELD(IMalloc16);
         DWORD                   ref;
         /* IMalloc16 fields */
         /* Gmm, I think one is not enough, we should probably manage a list of
@@ -221,7 +221,7 @@ IMalloc16_Constructor() {
             VTENT(DidAlloc);
             VTENT(HeapMinimize);
 #undef VTENT
-            This->lpvtbl = (ICOM_VTABLE(IMalloc16)*)SEGPTR_GET(msegvt16);
+            ICOM_VTBL(This) = (ICOM_VTABLE(IMalloc16)*)SEGPTR_GET(msegvt16);
 	}
 	This->ref = 1;
 	/* FIXME: implement multiple heaps */
@@ -236,7 +236,7 @@ IMalloc16_Constructor() {
 typedef struct
 {
         /* IUnknown fields */
-        ICOM_VTABLE(IMalloc)* lpvtbl;
+        ICOM_VFIELD(IMalloc);
         DWORD                   ref;
 } IMalloc32Impl;
 
@@ -352,7 +352,7 @@ IMalloc_Constructor() {
 	IMalloc32Impl* This;
 
 	This = (IMalloc32Impl*)HeapAlloc(GetProcessHeap(),0,sizeof(IMalloc32Impl));
-	This->lpvtbl = &VT_IMalloc32;
+	ICOM_VTBL(This) = &VT_IMalloc32;
 	This->ref = 1;
 	return (LPMALLOC)This;
 }
diff --git a/dlls/ole32/memlockbytes.c b/dlls/ole32/memlockbytes.c
index e40803595bb..410dc2f020d 100644
--- a/dlls/ole32/memlockbytes.c
+++ b/dlls/ole32/memlockbytes.c
@@ -27,7 +27,7 @@ struct HGLOBALLockBytesImpl
    * Needs to be the first item in the stuct 
    * since we want to cast this in an ILockBytes pointer
    */
-  ICOM_VTABLE(ILockBytes) *lpvtbl;
+  ICOM_VFIELD(ILockBytes);
 
   /*
    * Reference count
@@ -157,7 +157,7 @@ HRESULT WINAPI GetHGlobalFromILockBytes(ILockBytes* plkbyt, HGLOBAL* phglobal)
 {
   HGLOBALLockBytesImpl* const pMemLockBytes = (HGLOBALLockBytesImpl*)plkbyt;
 
-  if (pMemLockBytes->lpvtbl == &HGLOBALLockBytesImpl_Vtbl)
+  if (ICOM_VTBL(pMemLockBytes) == &HGLOBALLockBytesImpl_Vtbl)
     *phglobal = pMemLockBytes->supportHandle;
   else
     *phglobal = 0;
@@ -193,7 +193,7 @@ HGLOBALLockBytesImpl* HGLOBALLockBytesImpl_Construct(HGLOBAL hGlobal,
     /*
      * Set up the virtual function table and reference count.
      */
-    newLockBytes->lpvtbl = &HGLOBALLockBytesImpl_Vtbl;
+    ICOM_VTBL(newLockBytes) = &HGLOBALLockBytesImpl_Vtbl;
     newLockBytes->ref    = 0;
   
     /*
diff --git a/dlls/ole32/moniker.c b/dlls/ole32/moniker.c
index 32a9e6d8f94..370ea6f2e3d 100644
--- a/dlls/ole32/moniker.c
+++ b/dlls/ole32/moniker.c
@@ -28,7 +28,7 @@ typedef struct RunObject{
 /* define de RunningObjectTableImpl structure */
 typedef struct RunningObjectTableImpl{
 
-    ICOM_VTABLE(IRunningObjectTable)*  lpvtbl;
+    ICOM_VFIELD(IRunningObjectTable);
     ULONG      ref;
 
     RunObject* runObjTab;            /* pointe to the first object in the table       */
@@ -189,7 +189,7 @@ HRESULT WINAPI RunningObjectTableImpl_Initialize()
         return E_OUTOFMEMORY;
 
     /* initialize the virtual table function */
-    runningObjectTableInstance->lpvtbl = &VT_RunningObjectTableImpl;
+    ICOM_VTBL(runningObjectTableInstance) = &VT_RunningObjectTableImpl;
 
     /* the initial reference is set to "1" ! because if set to "0" it will be not practis when */
     /* the ROT refered many times  not in the same time (all the objects in the ROT will  */
diff --git a/dlls/ole32/oleobj.c b/dlls/ole32/oleobj.c
index 67c21f2e11f..aa5b9170da7 100644
--- a/dlls/ole32/oleobj.c
+++ b/dlls/ole32/oleobj.c
@@ -20,7 +20,7 @@ DEFAULT_DEBUG_CHANNEL(ole)
  */
 typedef struct OleAdviseHolderImpl
 {
-  ICOM_VTABLE(IOleAdviseHolder)* lpvtbl;
+  ICOM_VFIELD(IOleAdviseHolder);
 
   DWORD ref;
 
@@ -71,7 +71,7 @@ static LPOLEADVISEHOLDER OleAdviseHolderImpl_Constructor()
 					 0,
 					 sizeof(OleAdviseHolderImpl));
   
-  lpoah->lpvtbl = &oahvt;
+  ICOM_VTBL(lpoah) = &oahvt;
   lpoah->ref = 1;
   lpoah->maxSinks = 10;
   lpoah->arrayOfSinks = HeapAlloc(GetProcessHeap(),
@@ -344,7 +344,7 @@ OleAdviseHolderImpl_SendOnClose (LPOLEADVISEHOLDER iface)
  */
 typedef struct DataAdviseHolder
 {
-  ICOM_VTABLE(IDataAdviseHolder)* lpvtbl;
+  ICOM_VFIELD(IDataAdviseHolder);
 
   DWORD ref;
 } DataAdviseHolder;
@@ -407,7 +407,7 @@ static IDataAdviseHolder* DataAdviseHolder_Constructor()
 					   0,
 					   sizeof(DataAdviseHolder));
   
-  newHolder->lpvtbl = &DataAdviseHolderImpl_VTable;
+  ICOM_VTBL(newHolder) = &DataAdviseHolderImpl_VTable;
   newHolder->ref = 1;
 
   return (IDataAdviseHolder*)newHolder;
diff --git a/dlls/ole32/stg_stream.c b/dlls/ole32/stg_stream.c
index 101cce29340..712ec86991c 100644
--- a/dlls/ole32/stg_stream.c
+++ b/dlls/ole32/stg_stream.c
@@ -69,8 +69,8 @@ StgStreamImpl* StgStreamImpl_Construct(
     /*
      * Set-up the virtual function table and reference count.
      */
-    newStream->lpvtbl = &StgStreamImpl_Vtbl;
-    newStream->ref    = 0;
+    ICOM_VTBL(newStream) = &StgStreamImpl_Vtbl;
+    newStream->ref       = 0;
     
     /*
      * We want to nail-down the reference to the storage in case the
diff --git a/dlls/ole32/storage.c b/dlls/ole32/storage.c
index b6fd5862c20..e5360bbb1d4 100644
--- a/dlls/ole32/storage.c
+++ b/dlls/ole32/storage.c
@@ -671,7 +671,7 @@ STORAGE_get_free_pps_entry(HFILE hf) {
 typedef struct
 {
         /* IUnknown fields */
-        ICOM_VTABLE(IStream16)*         lpvtbl;
+        ICOM_VFIELD(IStream16);
         DWORD                           ref;
         /* IStream16 fields */
         SEGPTR                          thisptr; /* pointer to this struct as segmented */
@@ -1144,7 +1144,7 @@ static void _create_istream16(LPSTREAM16 *str) {
 		}
 	}
 	lpst = SEGPTR_NEW(IStream16Impl);
-	lpst->lpvtbl	= segstrvt16;
+	ICOM_VTBL(lpst)	= segstrvt16;
 	lpst->ref	= 1;
 	lpst->thisptr	= SEGPTR_GET(lpst);
 	*str = (void*)lpst->thisptr;
@@ -1156,7 +1156,7 @@ static void _create_istream16(LPSTREAM16 *str) {
 typedef struct
 {
         /* IUnknown fields */
-        ICOM_VTABLE(IStream)*         lpvtbl;
+        ICOM_VFIELD(IStream);
         DWORD                           ref;
         /* IStream32 fields */
         struct storage_pps_entry        stde;
@@ -1212,7 +1212,7 @@ ULONG WINAPI IStream_fnRelease(IStream* iface) {
 typedef struct
 {
         /* IUnknown fields */
-        ICOM_VTABLE(IStorage16)*        lpvtbl;
+        ICOM_VFIELD(IStorage16);
         DWORD                           ref;
         /* IStorage16 fields */
         SEGPTR                          thisptr; /* pointer to this struct as segmented */
@@ -1559,7 +1559,7 @@ static void _create_istorage16(LPSTORAGE16 *stg) {
 		}
 	}
 	lpst = SEGPTR_NEW(IStorage16Impl);
-	lpst->lpvtbl	= segstvt16;
+	ICOM_VTBL(lpst)	= segstvt16;
 	lpst->ref	= 1;
 	lpst->thisptr	= SEGPTR_GET(lpst);
 	*stg = (void*)lpst->thisptr;
diff --git a/dlls/ole32/storage32.c b/dlls/ole32/storage32.c
index 18996a280fd..e352019d572 100644
--- a/dlls/ole32/storage32.c
+++ b/dlls/ole32/storage32.c
@@ -2037,7 +2037,7 @@ HRESULT StorageImpl_Construct(
   /*
    * Initialize the virtual fgunction table.
    */
-  This->lpvtbl       = &Storage32Impl_Vtbl;
+  ICOM_VTBL(This)    = &Storage32Impl_Vtbl;
   This->v_destructor = &StorageImpl_Destroy;
   
   /*
@@ -3283,7 +3283,7 @@ StorageInternalImpl* StorageInternalImpl_Construct(
     /*
      * Initialize the virtual function table.
      */
-    newStorage->lpvtbl       = &Storage32InternalImpl_Vtbl;
+    ICOM_VTBL(newStorage)    = &Storage32InternalImpl_Vtbl;
     newStorage->v_destructor = &StorageInternalImpl_Destroy;
 
     /*
@@ -3354,8 +3354,8 @@ IEnumSTATSTGImpl* IEnumSTATSTGImpl_Construct(
     /*
      * Set-up the virtual function table and reference count.
      */
-    newEnumeration->lpvtbl = &IEnumSTATSTGImpl_Vtbl;
-    newEnumeration->ref    = 0;
+    ICOM_VTBL(newEnumeration) = &IEnumSTATSTGImpl_Vtbl;
+    newEnumeration->ref       = 0;
     
     /*
      * We want to nail-down the reference to the storage in case the
diff --git a/dlls/ole32/storage32.h b/dlls/ole32/storage32.h
index 2e37b473132..564efbf19fe 100644
--- a/dlls/ole32/storage32.h
+++ b/dlls/ole32/storage32.h
@@ -179,8 +179,8 @@ ULARGE_INTEGER BIGBLOCKFILE_GetSize(LPBIGBLOCKFILE This);
  */
 struct StorageBaseImpl
 {
-  ICOM_VTABLE(IStorage)*  lpvtbl;   /* Needs to be the first item in the stuct
-				       * since we want to cast this in a Storage32 pointer */
+  ICOM_VFIELD(IStorage);   /* Needs to be the first item in the stuct
+			    * since we want to cast this in a Storage32 pointer */
 
   /*
    * Reference count of this object
@@ -273,7 +273,7 @@ HRESULT WINAPI StorageBaseImpl_SetClass(
  */
 struct StorageImpl
 {
-  ICOM_VTABLE(IStorage) *lpvtbl;   /* Needs to be the first item in the stuct
+  ICOM_VFIELD(IStorage);   /* Needs to be the first item in the stuct
 				      * since we want to cast this in a Storage32 pointer */
 
   /*
@@ -462,8 +462,8 @@ void Storage32Impl_SetExtDepotBlock(StorageImpl* This,
  */
 struct StorageInternalImpl
 {
-  ICOM_VTABLE(IStorage) *lpvtbl;	/* Needs to be the first item in the stuct
-					 * since we want to cast this in a Storage32 pointer */
+  ICOM_VFIELD(IStorage);	/* Needs to be the first item in the stuct
+				 * since we want to cast this in a Storage32 pointer */
 
   /*
    * Declare the member of the Storage32BaseImpl class to allow
@@ -506,7 +506,7 @@ HRESULT WINAPI StorageInternalImpl_Revert(
  */
 struct IEnumSTATSTGImpl
 {
-  ICOM_VTABLE(IEnumSTATSTG) *lpvtbl;    /* Needs to be the first item in the stuct
+  ICOM_VFIELD(IEnumSTATSTG);    /* Needs to be the first item in the stuct
 					 * since we want to cast this in a IEnumSTATSTG pointer */
   
   ULONG		 ref;		        /* Reference count */
@@ -591,7 +591,7 @@ INT IEnumSTATSTGImpl_FindParentProperty(
  */
 struct StgStreamImpl
 {
-  ICOM_VTABLE(IStream) *lpvtbl;  /* Needs to be the first item in the stuct
+  ICOM_VFIELD(IStream);  /* Needs to be the first item in the stuct
 				    * since we want to cast this in a IStream pointer */
   
   /*
diff --git a/dlls/shell32/contmenu.c b/dlls/shell32/contmenu.c
index f58b40e0610..84839d4b964 100644
--- a/dlls/shell32/contmenu.c
+++ b/dlls/shell32/contmenu.c
@@ -49,7 +49,7 @@ static struct ICOM_VTABLE(IContextMenu) cmvt =
 *  IContextMenu Implementation
 */
 typedef struct 
-{	ICOM_VTABLE(IContextMenu)* lpvtbl;
+{	ICOM_VFIELD(IContextMenu);
 	DWORD		ref;
 	IShellFolder*	pSFParent;
 	LPITEMIDLIST	pidl;		/* root pidl */
@@ -147,7 +147,7 @@ IContextMenu *IContextMenu_Constructor(LPSHELLFOLDER pSFParent, LPCITEMIDLIST pi
 	UINT  u;
 
 	cm = (IContextMenuImpl*)HeapAlloc(GetProcessHeap(),0,sizeof(IContextMenuImpl));
-	cm->lpvtbl=&cmvt;
+	ICOM_VTBL(cm)=&cmvt;
 	cm->ref = 1;
 	cm->pidl = ILClone(pidl);
 
diff --git a/dlls/shell32/dataobject.c b/dlls/shell32/dataobject.c
index 8342a48fde5..949beb70c13 100644
--- a/dlls/shell32/dataobject.c
+++ b/dlls/shell32/dataobject.c
@@ -24,7 +24,7 @@ DEFAULT_DEBUG_CHANNEL(shell)
 typedef struct 
 {
     /* IUnknown fields */
-    ICOM_VTABLE(IEnumFORMATETC)* lpvtbl;
+    ICOM_VFIELD(IEnumFORMATETC);
     DWORD                        ref;
     /* IEnumFORMATETC fields */
     UINT        posFmt;
@@ -62,7 +62,7 @@ LPENUMFORMATETC IEnumFORMATETC_Constructor(UINT cfmt, const FORMATETC afmt[])
 	if(ef)
 	{
 	  ef->ref=1;
-	  ef->lpvtbl=&efvt;
+	  ICOM_VTBL(ef)=&efvt;
 
 	  ef->countFmt = cfmt;
 	  ef->pFmt = SHAlloc (size);
@@ -356,7 +356,7 @@ static void WINAPI IDLList_CleanList(LPIDLLIST this)
 typedef struct
 {
 	/* IUnknown fields */
-	ICOM_VTABLE(IDataObject)* lpvtbl;
+	ICOM_VFIELD(IDataObject);
 	DWORD		ref;
 
 	/* IDataObject fields */
@@ -384,7 +384,7 @@ LPDATAOBJECT IDataObject_Constructor(HWND hwndOwner, LPITEMIDLIST pMyPidl, LPITE
 	if (dto)
 	{
 	  dto->ref=1;
-	  dto->lpvtbl=&dtovt;
+	  ICOM_VTBL(dto)=&dtovt;
 	  dto->pidl=ILClone(pMyPidl);
 
 	  /* fill the ItemID List List */
diff --git a/dlls/shell32/enumidlist.c b/dlls/shell32/enumidlist.c
index 75cf748ad32..52ab64bd0ef 100644
--- a/dlls/shell32/enumidlist.c
+++ b/dlls/shell32/enumidlist.c
@@ -28,7 +28,7 @@ typedef struct tagENUMLIST
 
 typedef struct
 {
-	ICOM_VTABLE(IEnumIDList)*	lpvtbl;
+	ICOM_VFIELD(IEnumIDList);
 	DWORD				ref;
 	LPENUMLIST			mpFirst;
 	LPENUMLIST			mpLast;
@@ -309,7 +309,7 @@ IEnumIDList * IEnumIDList_Constructor(
 	if (lpeidl)
 	{
 	  lpeidl->ref = 1;
-	  lpeidl->lpvtbl = &eidlvt;
+	  ICOM_VTBL(lpeidl) = &eidlvt;
 
 	  switch (dwKind)
 	  {
diff --git a/dlls/shell32/folders.c b/dlls/shell32/folders.c
index 1e24e7964f1..93d106fa57a 100644
--- a/dlls/shell32/folders.c
+++ b/dlls/shell32/folders.c
@@ -25,7 +25,7 @@ DEFAULT_DEBUG_CHANNEL(shell)
 */
 
 typedef struct 
-{	ICOM_VTABLE(IExtractIconA)*	lpvtbl;
+{	ICOM_VFIELD(IExtractIconA);
 	DWORD	ref;
 	ICOM_VTABLE(IPersistFile)*	lpvtblPersistFile;
 	LPITEMIDLIST	pidl;
@@ -46,7 +46,7 @@ IExtractIconA* IExtractIconA_Constructor(LPCITEMIDLIST pidl)
 
 	ei=(IExtractIconAImpl*)HeapAlloc(GetProcessHeap(),0,sizeof(IExtractIconAImpl));
 	ei->ref=1;
-	ei->lpvtbl = &eivt;
+	ICOM_VTBL(ei) = &eivt;
 	ei->lpvtblPersistFile = &pfvt;
 	ei->pidl=ILClone(pidl);
 
diff --git a/dlls/shell32/if_macros.h b/dlls/shell32/if_macros.h
index 3c299784c88..b15dcf374c2 100644
--- a/dlls/shell32/if_macros.h
+++ b/dlls/shell32/if_macros.h
@@ -3,23 +3,25 @@
 
 #include "shlobj.h"
 
-#define IShellBrowser_QueryInterface(p,a,b)	(p)->lpvtbl->fnQueryInterface(p,a,b)
-#define IShellBrowser_AddRef(p)			(p)->lpvtbl->fnAddRef(p)
-#define IShellBrowser_Release(p)		(p)->lpvtbl->fnRelease(p)
-#define IShellBrowser_GetWindow(p,a)		(p)->lpvtbl->fnGetWindow(p,a)
-#define IShellBrowser_ContextSensitiveHelp(p,a)	(p)->lpvtbl->fnContextSensitiveHelp(p,a)
-#define IShellBrowser_InsertMenusSB(p,a,b)	(p)->lpvtbl->fnInsertMenusSB(p,a,b)
-#define IShellBrowser_SetMenuSB(p,a,b,c)	(p)->lpvtbl->fnSetMenuSB(p,a,b,c)
-#define IShellBrowser_RemoveMenusSB(p,a)	(p)->lpvtbl->fnRemoveMenusSB(p,a)
-#define IShellBrowser_SetStatusTextSB(p,a)	(p)->lpvtbl->fnSetStatusTextSB(p,a)
-#define IShellBrowser_EnableModelessSB(p,a)	(p)->lpvtbl->fnEnableModelessSB(p,a)
-#define IShellBrowser_TranslateAcceleratorSB(p,a,b)	(p)->lpvtbl->fnTranslateAcceleratorSB(p,a,b)
-#define IShellBrowser_BrowseObject(p,a,b)	(p)->lpvtbl->fnBrowseObject(p,a,b)
-#define IShellBrowser_GetViewStateStream(p,a,b)	(p)->lpvtbl->fnGetViewStateStream(p,a,b)
-#define IShellBrowser_GetControlWindow(p,a,b)	(p)->lpvtbl->fnGetControlWindow(p,a,b)
-#define IShellBrowser_SendControlMsg(p,a,b,c,d,e)	(p)->lpvtbl->fnSendControlMsg(p,a,b,c,d,e)
-#define IShellBrowser_QueryActiveShellView(p,a)	(p)->lpvtbl->fnQueryActiveShellView(p,a)
-#define IShellBrowser_OnViewWindowActive(p,a)	(p)->lpvtbl->fnOnViewWindowActive(p,a)
-#define IShellBrowser_SetToolbarItems(p,a,b,c)	(p)->lpvtbl->fnSetToolbarItems(p,a,b,c)
+/*** IUnknown methods ***/
+#define IShellBrowser_QueryInterface(p,a,b)         ICOM_CALL2(QueryInterface,p,a,b)
+#define IShellBrowser_AddRef(p)                     ICOM_CALL (AddRef,p)
+#define IShellBrowser_Release(p)                    ICOM_CALL (Release,p)
+/*** IShellBrowser methods ***/
+#define IShellBrowser_GetWindow(p,a)                ICOM_CALL1(GetWindow,p,a)
+#define IShellBrowser_ContextSensitiveHelp(p,a)     ICOM_CALL1(ContextSensitiveHelp,p,a)
+#define IShellBrowser_InsertMenusSB(p,a,b)          ICOM_CALL2(InsertMenusSB,p,a,b)
+#define IShellBrowser_SetMenuSB(p,a,b,c)            ICOM_CALL3(SetMenuSB,p,a,b,c)
+#define IShellBrowser_RemoveMenusSB(p,a)            ICOM_CALL1(RemoveMenusSB,p,a)
+#define IShellBrowser_SetStatusTextSB(p,a)          ICOM_CALL1(SetStatusTextSB,p,a)
+#define IShellBrowser_EnableModelessSB(p,a)         ICOM_CALL1(EnableModelessSB,p,a)
+#define IShellBrowser_TranslateAcceleratorSB(p,a,b) ICOM_CALL2(TranslateAcceleratorSB,p,a,b)
+#define IShellBrowser_BrowseObject(p,a,b)           ICOM_CALL2(BrowseObject,p,a,b)
+#define IShellBrowser_GetViewStateStream(p,a,b)     ICOM_CALL2(GetViewStateStream,p,a,b)
+#define IShellBrowser_GetControlWindow(p,a,b)       ICOM_CALL2(GetControlWindow,p,a,b)
+#define IShellBrowser_SendControlMsg(p,a,b,c,d,e)   ICOM_CALL5(SendControlMsg,p,a,b,c,d,e)
+#define IShellBrowser_QueryActiveShellView(p,a)     ICOM_CALL1(QueryActiveShellView,p,a)
+#define IShellBrowser_OnViewWindowActive(p,a)       ICOM_CALL1(OnViewWindowActive,p,a)
+#define IShellBrowser_SetToolbarItems(p,a,b,c)      ICOM_CALL3(SetToolbarItems,p,a,b,c)
 
 #endif
diff --git a/dlls/shell32/regstream.c b/dlls/shell32/regstream.c
index c3ce6196cd7..2c10ac30bac 100644
--- a/dlls/shell32/regstream.c
+++ b/dlls/shell32/regstream.c
@@ -15,7 +15,7 @@
 DEFAULT_DEBUG_CHANNEL(shell)
 
 typedef struct 
-{	ICOM_VTABLE(IStream)* lpvtbl;
+{	ICOM_VFIELD(IStream);
 	DWORD		ref;
 	HKEY		hKey;
 	LPSTR		pszSubKey;
@@ -35,7 +35,7 @@ IStream *IStream_Constructor(HKEY hKey, LPCSTR pszSubKey, LPCSTR pszValue, DWORD
 	DWORD		dwType;
 	
 	rstr = (ISHRegStream*)HeapAlloc(GetProcessHeap(),HEAP_ZERO_MEMORY,sizeof(ISHRegStream));
-	rstr->lpvtbl=&rstvt;
+	ICOM_VTBL(rstr)=&rstvt;
 	rstr->ref = 1;
 
 	if ( ERROR_SUCCESS == RegOpenKeyExA (hKey, pszSubKey, 0, KEY_READ, &(rstr->hKey)))
diff --git a/dlls/shell32/shell32.spec b/dlls/shell32/shell32.spec
index 67ba433caa2..97eb92f6f6c 100644
--- a/dlls/shell32/shell32.spec
+++ b/dlls/shell32/shell32.spec
@@ -323,7 +323,7 @@ init	Shell32LibMain
  314 stub StrNCmpW # proper ordinal unknown
  315 stub StrNCpyA # proper ordinal unknown
  316 stub StrNCpyW # proper ordinal unknown
- 317 stub StrRChrA # proper ordinal unknown
+ 317 stdcall StrRChrA (str str long) StrRChrA # proper ordinal unknown
  318 stub StrRChrIA # proper ordinal unknown
  319 stub StrRChrIW # proper ordinal unknown
  320 stdcall StrRChrW (wstr wstr long) StrRChrW # proper ordinal unknown
diff --git a/dlls/shell32/shelllink.c b/dlls/shell32/shelllink.c
index 63cc2dea0d4..2e78b101ace 100644
--- a/dlls/shell32/shelllink.c
+++ b/dlls/shell32/shelllink.c
@@ -68,7 +68,7 @@ static ICOM_VTABLE(IPersistStream)	psvt;
 
 typedef struct
 {
-	ICOM_VTABLE(IShellLink)*	lpvtbl;
+	ICOM_VFIELD(IShellLink);
 	DWORD				ref;
 
 	ICOM_VTABLE(IShellLinkW)*	lpvtblw;
@@ -403,7 +403,7 @@ IShellLink * IShellLink_Constructor(BOOL bUnicode)
 
 	sl = (IShellLinkImpl *)HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(IShellLinkImpl));
 	sl->ref = 1;
-	sl->lpvtbl = &slvt;
+	ICOM_VTBL(sl) = &slvt;
 	sl->lpvtblw = &slvtw;
 	sl->lpvtblPersistFile = &pfvt;
 	sl->lpvtblPersistStream = &psvt;
diff --git a/dlls/shell32/shellole.c b/dlls/shell32/shellole.c
index b5246617b00..7bbe894bd55 100644
--- a/dlls/shell32/shellole.c
+++ b/dlls/shell32/shellole.c
@@ -194,7 +194,7 @@ DWORD WINAPI SHGetDesktopFolder(IShellFolder **psf)
 typedef struct
 {
     /* IUnknown fields */
-    ICOM_VTABLE(IClassFactory)* lpvtbl;
+    ICOM_VFIELD(IClassFactory);
     DWORD                       ref;
     CLSID			*rclsid;
 } IClassFactoryImpl;
@@ -211,7 +211,7 @@ LPCLASSFACTORY IClassFactory_Constructor(REFCLSID rclsid)
 
 	lpclf= (IClassFactoryImpl*)HeapAlloc(GetProcessHeap(),0,sizeof(IClassFactoryImpl));
 	lpclf->ref = 1;
-	lpclf->lpvtbl = &clfvt;
+	ICOM_VTBL(lpclf) = &clfvt;
 	lpclf->rclsid = (CLSID*)rclsid;
 
 	TRACE("(%p)->()\n",lpclf);
@@ -354,7 +354,7 @@ typedef HRESULT (CALLBACK * LPFNCREATEINSTANCE)(IUnknown* pUnkOuter, REFIID riid
 
 typedef struct
 {
-    ICOM_VTABLE(IClassFactory)* lpvtbl;
+    ICOM_VFIELD(IClassFactory);
     DWORD                       ref;
     CLSID			*rclsid;
     LPFNCREATEINSTANCE		lpfnCI;
@@ -377,7 +377,7 @@ IClassFactory * IDefClF_fnConstructor(LPFNCREATEINSTANCE lpfnCI, UINT * pcRefDll
 
 	lpclf = (IDefClFImpl*)HeapAlloc(GetProcessHeap(),0,sizeof(IDefClFImpl));
 	lpclf->ref = 1;
-	lpclf->lpvtbl = &dclfvt;
+	ICOM_VTBL(lpclf) = &dclfvt;
 	lpclf->lpfnCI = lpfnCI;
 	lpclf->pcRefDll = pcRefDll;
 
diff --git a/dlls/shell32/shlfolder.c b/dlls/shell32/shlfolder.c
index 7659f1b2408..e7a007dda43 100644
--- a/dlls/shell32/shlfolder.c
+++ b/dlls/shell32/shlfolder.c
@@ -187,7 +187,7 @@ static HRESULT SHELL32_GetDisplayNameOfChild(
 
 typedef struct 
 {
-	ICOM_VTABLE(IShellFolder)*	lpvtbl;
+	ICOM_VFIELD(IShellFolder);
 	DWORD				ref;
 
 	ICOM_VTABLE(IPersistFolder)*	lpvtblPersistFolder;
@@ -246,7 +246,7 @@ static IShellFolder * IShellFolder_Constructor(
 	sf=(IGenericSFImpl*)HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(IGenericSFImpl));
 	sf->ref=1;
 
-	sf->lpvtbl=&sfvt;
+	ICOM_VTBL(sf)=&sfvt;
 	sf->lpvtblPersistFolder=&psfvt;
 	sf->lpvtblDropTarget=&dtvt;
 	sf->pclsid = (CLSID*)&CLSID_SFFile;
@@ -1014,7 +1014,7 @@ IShellFolder * ISF_Desktop_Constructor()
 
 	sf=(IGenericSFImpl*)HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(IGenericSFImpl));
 	sf->ref=1;
-	sf->lpvtbl=&sfdvt;
+	ICOM_VTBL(sf)=&sfdvt;
 	sf->absPidl=_ILCreateDesktop();	/* my qualified pidl */
 
 	TRACE("(%p)\n",sf);
@@ -1365,7 +1365,7 @@ static IShellFolder * ISF_MyComputer_Constructor(void)
 	sf=(IGenericSFImpl*)HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(IGenericSFImpl));
 	sf->ref=1;
 
-	sf->lpvtbl = &sfmcvt;
+	ICOM_VTBL(sf) = &sfmcvt;
 	sf->lpvtblPersistFolder = &psfvt;
 	sf->pclsid = (CLSID*)&CLSID_SFMyComp;
 	sf->absPidl=_ILCreateMyComputer();	/* my qualified pidl */
diff --git a/dlls/shell32/shlview.c b/dlls/shell32/shlview.c
index 1ba811ace59..d8ed936ab2b 100644
--- a/dlls/shell32/shlview.c
+++ b/dlls/shell32/shlview.c
@@ -40,7 +40,7 @@ typedef struct
 }LISTVIEW_SORT_INFO, *LPLISTVIEW_SORT_INFO;
 
 typedef struct 
-{	ICOM_VTABLE(IShellView)* lpvtbl;
+{	ICOM_VFIELD(IShellView);
 	DWORD		ref;
 	ICOM_VTABLE(IOleCommandTarget)*	lpvtblOleCommandTarget;
 	ICOM_VTABLE(IDropTarget)*	lpvtblDropTarget;
@@ -132,7 +132,7 @@ IShellView * IShellView_Constructor( IShellFolder * pFolder)
 {	IShellViewImpl * sv;
 	sv=(IShellViewImpl*)HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(IShellViewImpl));
 	sv->ref=1;
-	sv->lpvtbl=&svvt;
+	ICOM_VTBL(sv)=&svvt;
 	sv->lpvtblOleCommandTarget=&ctvt;
 	sv->lpvtblDropTarget=&dtvt;
 	sv->lpvtblDropSource=&dsvt;
diff --git a/dlls/shell32/shv_bg_cmenu.c b/dlls/shell32/shv_bg_cmenu.c
index f36c28344c4..2fe691068f0 100644
--- a/dlls/shell32/shv_bg_cmenu.c
+++ b/dlls/shell32/shv_bg_cmenu.c
@@ -23,7 +23,7 @@ DEFAULT_DEBUG_CHANNEL(shell)
 *  IContextMenu Implementation
 */
 typedef struct 
-{	ICOM_VTABLE(IContextMenu)* lpvtbl;
+{	ICOM_VFIELD(IContextMenu);
 	DWORD		ref;
 } BgCmImpl;
 
@@ -38,7 +38,7 @@ IContextMenu *ISvBgCm_Constructor(void)
 	BgCmImpl* cm;
 
 	cm = (BgCmImpl*)HeapAlloc(GetProcessHeap(),HEAP_ZERO_MEMORY,sizeof(BgCmImpl));
-	cm->lpvtbl=&cmvt;
+	ICOM_VTBL(cm)=&cmvt;
 	cm->ref = 1;
 
 	TRACE("(%p)->()\n",cm);
diff --git a/graphics/d3d_private.h b/graphics/d3d_private.h
index f8bbab38a6e..8ac67cc4fb5 100644
--- a/graphics/d3d_private.h
+++ b/graphics/d3d_private.h
@@ -35,7 +35,7 @@ typedef struct IDirect3DDevice2Impl IDirect3DDevice2Impl;
 struct IDirect3DImpl
 {
     /* IUnknown fields */
-    ICOM_VTABLE(IDirect3D)* lpvtbl;
+    ICOM_VFIELD(IDirect3D);
     DWORD                   ref;
     /* IDirect3D fields */
     IDirectDrawImpl* ddraw;
@@ -47,7 +47,7 @@ struct IDirect3DImpl
 struct IDirect3D2Impl
 {
     /* IUnknown fields */
-    ICOM_VTABLE(IDirect3D2)* lpvtbl;
+    ICOM_VFIELD(IDirect3D2);
     DWORD                    ref;
     /* IDirect3D2 fields */
     IDirectDrawImpl* ddraw;
@@ -59,7 +59,7 @@ struct IDirect3D2Impl
 struct IDirect3DLightImpl
 {
     /* IUnknown fields */
-    ICOM_VTABLE(IDirect3DLight)* lpvtbl;
+    ICOM_VFIELD(IDirect3DLight);
     DWORD                        ref;
     /* IDirect3DLight fields */
     union {
@@ -89,7 +89,7 @@ struct IDirect3DLightImpl
 struct IDirect3DMaterial2Impl
 {
     /* IUnknown fields */
-    ICOM_VTABLE(IDirect3DMaterial2)* lpvtbl;
+    ICOM_VFIELD(IDirect3DMaterial2);
     DWORD                            ref;
     /* IDirect3DMaterial2 fields */
     union {
@@ -113,7 +113,7 @@ struct IDirect3DMaterial2Impl
 struct IDirect3DTexture2Impl
 {
     /* IUnknown fields */
-    ICOM_VTABLE(IDirect3DTexture2)* lpvtbl;
+    ICOM_VFIELD(IDirect3DTexture2);
     DWORD                           ref;
     /* IDirect3DTexture2 fields */
     void*                    D3Ddevice; /* I put (void *) to use the same pointer for both
@@ -130,7 +130,7 @@ struct IDirect3DTexture2Impl
 struct IDirect3DViewport2Impl
 {
     /* IUnknown fields */
-    ICOM_VTABLE(IDirect3DViewport2)* lpvtbl;
+    ICOM_VFIELD(IDirect3DViewport2);
     DWORD                            ref;
     /* IDirect3DViewport2 fields */
     union {
@@ -171,7 +171,7 @@ struct IDirect3DViewport2Impl
 struct IDirect3DExecuteBufferImpl
 {
     /* IUnknown fields */
-    ICOM_VTABLE(IDirect3DExecuteBuffer)* lpvtbl;
+    ICOM_VFIELD(IDirect3DExecuteBuffer);
     DWORD                                ref;
     /* IDirect3DExecuteBuffer fields */
     IDirect3DDeviceImpl* d3ddev;
@@ -198,7 +198,7 @@ struct IDirect3DExecuteBufferImpl
 struct IDirect3DDeviceImpl
 {
     /* IUnknown fields */
-    ICOM_VTABLE(IDirect3DDevice)* lpvtbl;
+    ICOM_VFIELD(IDirect3DDevice);
     DWORD                         ref;
     /* IDirect3DDevice fields */
     IDirect3DImpl*          d3d;
@@ -216,7 +216,7 @@ struct IDirect3DDeviceImpl
 struct IDirect3DDevice2Impl
 {
     /* IUnknown fields */
-    ICOM_VTABLE(IDirect3DDevice2)* lpvtbl;
+    ICOM_VFIELD(IDirect3DDevice2);
     DWORD                          ref;
     /* IDirect3DDevice fields */
     IDirect3D2Impl*         d3d;
diff --git a/graphics/d3ddevices.c b/graphics/d3ddevices.c
index f1e1f3e8649..4dde9e8b17e 100644
--- a/graphics/d3ddevices.c
+++ b/graphics/d3ddevices.c
@@ -175,7 +175,7 @@ int is_OpenGL(REFCLSID rguid, IDirectDrawSurfaceImpl* surface, IDirect3DDevice2I
     *device = HeapAlloc(GetProcessHeap(),HEAP_ZERO_MEMORY,sizeof(OpenGL_IDirect3DDevice2));
     odev = (OpenGL_IDirect3DDevice2 *) (*device);
     (*device)->ref = 1;
-    (*device)->lpvtbl = &OpenGL_vtable;
+    ICOM_VTBL(*device) = &OpenGL_vtable;
     (*device)->d3d = d3d;
     (*device)->surface = surface;
     
@@ -1239,7 +1239,7 @@ int is_OpenGL_dx3(REFCLSID rguid, IDirectDrawSurfaceImpl* surface, IDirect3DDevi
     *device = HeapAlloc(GetProcessHeap(),HEAP_ZERO_MEMORY,sizeof(OpenGL_IDirect3DDevice));
     odev = (OpenGL_IDirect3DDevice *) (*device);
     (*device)->ref = 1;
-    (*device)->lpvtbl = &OpenGL_vtable_dx3;
+    ICOM_VTBL(*device) = &OpenGL_vtable_dx3;
     (*device)->d3d = NULL;
     (*device)->surface = surface;
     
diff --git a/graphics/d3dexecutebuffer.c b/graphics/d3dexecutebuffer.c
index 5976d30a22f..559ccae971d 100644
--- a/graphics/d3dexecutebuffer.c
+++ b/graphics/d3dexecutebuffer.c
@@ -671,7 +671,7 @@ LPDIRECT3DEXECUTEBUFFER d3dexecutebuffer_create(IDirect3DDeviceImpl* d3ddev, LPD
   
   eb = HeapAlloc(GetProcessHeap(),HEAP_ZERO_MEMORY,sizeof(IDirect3DExecuteBufferImpl));
   eb->ref = 1;
-  eb->lpvtbl = &executebuffer_vtable;
+  ICOM_VTBL(eb) = &executebuffer_vtable;
   eb->d3ddev = d3ddev;
 
   /* Initializes memory */
diff --git a/graphics/d3dlight.c b/graphics/d3dlight.c
index 9a6a20d21bc..f8508b72c7e 100644
--- a/graphics/d3dlight.c
+++ b/graphics/d3dlight.c
@@ -104,7 +104,7 @@ LPDIRECT3DLIGHT d3dlight_create(IDirect3D2Impl* d3d2)
   
   light = HeapAlloc(GetProcessHeap(),HEAP_ZERO_MEMORY,sizeof(IDirect3DLightImpl));
   light->ref = 1;
-  light->lpvtbl = &light_vtable;
+  ICOM_VTBL(light) = &light_vtable;
   light->d3d.d3d2 = d3d2;
   light->type = D3D_2;
 
@@ -122,7 +122,7 @@ LPDIRECT3DLIGHT d3dlight_create_dx3(IDirect3DImpl* d3d1)
   
   light = HeapAlloc(GetProcessHeap(),HEAP_ZERO_MEMORY,sizeof(IDirect3DLightImpl));
   light->ref = 1;
-  light->lpvtbl = &light_vtable;
+  ICOM_VTBL(light) = &light_vtable;
   
   light->d3d.d3d1 = d3d1;
   light->type = D3D_1;
diff --git a/graphics/d3dmaterial.c b/graphics/d3dmaterial.c
index b08d0dd7d8e..dbf41372bee 100644
--- a/graphics/d3dmaterial.c
+++ b/graphics/d3dmaterial.c
@@ -70,7 +70,7 @@ LPDIRECT3DMATERIAL2 d3dmaterial2_create(IDirect3D2Impl* d3d2)
   
   mat = HeapAlloc(GetProcessHeap(),HEAP_ZERO_MEMORY,sizeof(IDirect3DMaterial2Impl));
   mat->ref = 1;
-  mat->lpvtbl = &material2_vtable;
+  ICOM_VTBL(mat) = &material2_vtable;
 
   mat->use_d3d2 = 1;
   mat->d3d.d3d2 = d3d2;
@@ -86,7 +86,7 @@ LPDIRECT3DMATERIAL d3dmaterial_create(IDirect3DImpl* d3d1)
   
   mat = HeapAlloc(GetProcessHeap(),HEAP_ZERO_MEMORY,sizeof(IDirect3DMaterial2Impl));
   mat->ref = 1;
-  mat->lpvtbl = (ICOM_VTABLE(IDirect3DMaterial2)*)&material_vtable;
+  ICOM_VTBL(mat) = (ICOM_VTABLE(IDirect3DMaterial2)*)&material_vtable;
 
   mat->use_d3d2 = 0;
   mat->d3d.d3d1 = d3d1;
diff --git a/graphics/d3dtexture.c b/graphics/d3dtexture.c
index e76d387fefa..7581faaa0ac 100644
--- a/graphics/d3dtexture.c
+++ b/graphics/d3dtexture.c
@@ -103,7 +103,7 @@ LPDIRECT3DTEXTURE2 d3dtexture2_create(IDirectDrawSurface4Impl* surf)
   
   tex = HeapAlloc(GetProcessHeap(),HEAP_ZERO_MEMORY,sizeof(IDirect3DTexture2Impl));
   tex->ref = 1;
-  tex->lpvtbl = &texture2_vtable;
+  ICOM_VTBL(tex) = &texture2_vtable;
   tex->surface = surf;
   
   return (LPDIRECT3DTEXTURE2)tex;
@@ -118,7 +118,7 @@ LPDIRECT3DTEXTURE d3dtexture_create(IDirectDrawSurface4Impl* surf)
   
   tex = HeapAlloc(GetProcessHeap(),HEAP_ZERO_MEMORY,sizeof(IDirect3DTexture2Impl));
   tex->ref = 1;
-  tex->lpvtbl = (ICOM_VTABLE(IDirect3DTexture2)*)&texture_vtable;
+  ICOM_VTBL(tex) = (ICOM_VTABLE(IDirect3DTexture2)*)&texture_vtable;
   tex->surface = surf;
   
   return (LPDIRECT3DTEXTURE)tex;
diff --git a/graphics/d3dviewport.c b/graphics/d3dviewport.c
index bb25364b904..ccc671ac7bd 100644
--- a/graphics/d3dviewport.c
+++ b/graphics/d3dviewport.c
@@ -45,7 +45,7 @@ LPDIRECT3DVIEWPORT2 d3dviewport2_create(IDirect3D2Impl* d3d2)
   
   vp = HeapAlloc(GetProcessHeap(),HEAP_ZERO_MEMORY,sizeof(IDirect3DViewport2Impl));
   vp->ref = 1;
-  vp->lpvtbl = &viewport2_vtable;
+  ICOM_VTBL(vp) = &viewport2_vtable;
   vp->d3d.d3d2 = d3d2;
   vp->use_d3d2 = 1;
 
@@ -65,7 +65,7 @@ LPDIRECT3DVIEWPORT d3dviewport_create(IDirect3DImpl* d3d1)
   
   vp = HeapAlloc(GetProcessHeap(),HEAP_ZERO_MEMORY,sizeof(IDirect3DViewport2Impl));
   vp->ref = 1;
-  vp->lpvtbl = &viewport2_vtable;
+  ICOM_VTBL(vp) = &viewport2_vtable;
   vp->d3d.d3d1 = d3d1;
   vp->use_d3d2 = 0;
 
diff --git a/graphics/ddraw.c b/graphics/ddraw.c
index 41619e68b96..75a75553b2a 100644
--- a/graphics/ddraw.c
+++ b/graphics/ddraw.c
@@ -2196,7 +2196,7 @@ HRESULT WINAPI DirectDrawCreateClipper( DWORD dwFlags,
   TRACE("(%08lx,%p,%p)\n", dwFlags, ilplpDDClipper, pUnkOuter);
 
   *ilplpDDClipper = (IDirectDrawClipperImpl*)HeapAlloc(GetProcessHeap(),HEAP_ZERO_MEMORY,sizeof(IDirectDrawClipperImpl));
-  (*ilplpDDClipper)->lpvtbl = &ddclipvt;
+  ICOM_VTBL(*ilplpDDClipper) = &ddclipvt;
   (*ilplpDDClipper)->ref = 1;
 
   return DD_OK;
@@ -2518,7 +2518,7 @@ static HRESULT WINAPI IDirect3DImpl_QueryInterface(
                 d3d->ref = 1;
                 d3d->ddraw = This->ddraw;
                 IDirect3D_AddRef(iface);
-                d3d->lpvtbl = &d3d2vt;
+                ICOM_VTBL(d3d) = &d3d2vt;
                 *obj = d3d;
 
 		TRACE("  Creating IDirect3D2 interface (%p)\n", *obj);
@@ -2676,7 +2676,7 @@ static HRESULT WINAPI IDirect3D2Impl_QueryInterface(
                 d3d->ref = 1;
                 d3d->ddraw = This->ddraw;
                 IDirect3D2_AddRef(iface);
-                d3d->lpvtbl = &d3dvt;
+                ICOM_VTBL(d3d) = &d3dvt;
                 *obj = d3d;
 
 		TRACE("  Creating IDirect3D interface (%p)\n", *obj);
@@ -2865,7 +2865,7 @@ static HRESULT WINAPI DGA_IDirectDraw2Impl_CreateSurface(
     IDirectDraw2_AddRef(iface);
 
     (*ilpdsf)->ref = 1;
-    (*ilpdsf)->lpvtbl = (ICOM_VTABLE(IDirectDrawSurface)*)&dga_dds4vt;
+    ICOM_VTBL(*ilpdsf) = (ICOM_VTABLE(IDirectDrawSurface)*)&dga_dds4vt;
     (*ilpdsf)->s.ddraw = This;
     (*ilpdsf)->s.palette = NULL;
     (*ilpdsf)->t.dga.fb_height = -1; /* This is to have non-on screen surfaces freed */
@@ -2927,7 +2927,7 @@ static HRESULT WINAPI DGA_IDirectDraw2Impl_CreateSurface(
 		);
 		IDirectDraw2_AddRef(iface);
 		back->ref = 1;
-		back->lpvtbl = (ICOM_VTABLE(IDirectDrawSurface4)*)&dga_dds4vt;
+		ICOM_VTBL(back) = (ICOM_VTABLE(IDirectDrawSurface4)*)&dga_dds4vt;
 		for (i=0;i<32;i++)
 		    if (!(This->e.dga.vpmask & (1<<i)))
 			break;
@@ -3132,7 +3132,7 @@ static HRESULT WINAPI Xlib_IDirectDraw2Impl_CreateSurface(
 
     (*ilpdsf)->s.ddraw             = This;
     (*ilpdsf)->ref                 = 1;
-    (*ilpdsf)->lpvtbl              = (ICOM_VTABLE(IDirectDrawSurface)*)&xlib_dds4vt;
+    ICOM_VTBL(*ilpdsf)             = (ICOM_VTABLE(IDirectDrawSurface)*)&xlib_dds4vt;
     (*ilpdsf)->s.palette = NULL;
     (*ilpdsf)->t.xlib.image = NULL; /* This is for off-screen buffers */
 
@@ -3182,7 +3182,7 @@ static HRESULT WINAPI Xlib_IDirectDraw2Impl_CreateSurface(
 		back->s.ddraw = This;
 
 		back->ref = 1;
-		back->lpvtbl = (ICOM_VTABLE(IDirectDrawSurface4)*)&xlib_dds4vt;
+		ICOM_VTBL(back) = (ICOM_VTABLE(IDirectDrawSurface4)*)&xlib_dds4vt;
 		/* Copy the surface description from the front buffer */
 		back->s.surface_desc = (*ilpdsf)->s.surface_desc;
 
@@ -3819,7 +3819,7 @@ static HRESULT WINAPI IDirectDraw2Impl_CreateClipper(
 	);
 	*ilpddclip = (IDirectDrawClipperImpl*)HeapAlloc(GetProcessHeap(),HEAP_ZERO_MEMORY,sizeof(IDirectDrawClipperImpl));
 	(*ilpddclip)->ref = 1;
-	(*ilpddclip)->lpvtbl = &ddclipvt;
+	ICOM_VTBL(*ilpddclip) = &ddclipvt;
 	return DD_OK;
 }
 
@@ -3876,7 +3876,7 @@ static HRESULT WINAPI DGA_IDirectDraw2Impl_CreatePalette(
 	TRACE("(%p)->(%08lx,%p,%p,%p)\n",This,dwFlags,palent,ilpddpal,lpunk);
 	res = common_IDirectDraw2Impl_CreatePalette(This,dwFlags,palent,ilpddpal,lpunk,&xsize);
 	if (res != 0) return res;
-	(*ilpddpal)->lpvtbl = &dga_ddpalvt;
+	ICOM_VTBL(*ilpddpal) = &dga_ddpalvt;
 	if (This->d.directdraw_pixelformat.u.dwRGBBitCount<=8) {
 		(*ilpddpal)->cm = TSXCreateColormap(display,DefaultRootWindow(display),DefaultVisualOfScreen(X11DRV_GetXScreen()),AllocAll);
 	} else {
@@ -3910,7 +3910,7 @@ static HRESULT WINAPI Xlib_IDirectDraw2Impl_CreatePalette(
 	TRACE("(%p)->(%08lx,%p,%p,%p)\n",This,dwFlags,palent,ilpddpal,lpunk);
 	res = common_IDirectDraw2Impl_CreatePalette(This,dwFlags,palent,ilpddpal,lpunk,&xsize);
 	if (res != 0) return res;
-	(*ilpddpal)->lpvtbl = &xlib_ddpalvt;
+	ICOM_VTBL(*ilpddpal) = &xlib_ddpalvt;
 	return DD_OK;
 }
 
@@ -4013,7 +4013,7 @@ static HRESULT WINAPI DGA_IDirectDraw2Impl_QueryInterface(
 		return S_OK;
 	}
 	if ( IsEqualGUID( &IID_IDirectDraw, refiid ) ) {
-		This->lpvtbl = (ICOM_VTABLE(IDirectDraw2)*)&dga_ddvt;
+		ICOM_VTBL(This) = (ICOM_VTABLE(IDirectDraw2)*)&dga_ddvt;
 		IDirectDraw2_AddRef(iface);
 		*obj = This;
 
@@ -4022,7 +4022,7 @@ static HRESULT WINAPI DGA_IDirectDraw2Impl_QueryInterface(
 		return S_OK;
 	}
 	if ( IsEqualGUID( &IID_IDirectDraw2, refiid ) ) {
-		This->lpvtbl = (ICOM_VTABLE(IDirectDraw2)*)&dga_dd2vt;
+		ICOM_VTBL(This) = (ICOM_VTABLE(IDirectDraw2)*)&dga_dd2vt;
 		IDirectDraw2_AddRef(iface);
 		*obj = This;
 
@@ -4031,7 +4031,7 @@ static HRESULT WINAPI DGA_IDirectDraw2Impl_QueryInterface(
 		return S_OK;
 	}
 	if ( IsEqualGUID( &IID_IDirectDraw4, refiid ) ) {
-		This->lpvtbl = (ICOM_VTABLE(IDirectDraw2)*)&dga_dd4vt;
+		ICOM_VTBL(This) = (ICOM_VTABLE(IDirectDraw2)*)&dga_dd4vt;
 		IDirectDraw2_AddRef(iface);
 		*obj = This;
 
@@ -4046,7 +4046,7 @@ static HRESULT WINAPI DGA_IDirectDraw2Impl_QueryInterface(
 		d3d->ref = 1;
 		d3d->ddraw = (IDirectDrawImpl*)This;
 		IDirectDraw2_AddRef(iface);
-		d3d->lpvtbl = &d3dvt;
+		ICOM_VTBL(d3d) = &d3dvt;
 		*obj = d3d;
 
 		TRACE("  Creating IDirect3D interface (%p)\n", *obj);
@@ -4060,7 +4060,7 @@ static HRESULT WINAPI DGA_IDirectDraw2Impl_QueryInterface(
 		d3d->ref = 1;
 		d3d->ddraw = (IDirectDrawImpl*)This;
 		IDirectDraw2_AddRef(iface);
-		d3d->lpvtbl = &d3d2vt;
+		ICOM_VTBL(d3d) = &d3d2vt;
 		*obj = d3d;
 
 		TRACE("  Creating IDirect3D2 interface (%p)\n", *obj);
@@ -4089,7 +4089,7 @@ static HRESULT WINAPI Xlib_IDirectDraw2Impl_QueryInterface(
 		return S_OK;
 	}
 	if ( IsEqualGUID( &IID_IDirectDraw, refiid ) ) {
-		This->lpvtbl = (ICOM_VTABLE(IDirectDraw2)*)&xlib_ddvt;
+		ICOM_VTBL(This) = (ICOM_VTABLE(IDirectDraw2)*)&xlib_ddvt;
 		IDirectDraw2_AddRef(iface);
 		*obj = This;
 
@@ -4098,7 +4098,7 @@ static HRESULT WINAPI Xlib_IDirectDraw2Impl_QueryInterface(
 		return S_OK;
 	}
 	if ( IsEqualGUID( &IID_IDirectDraw2, refiid ) ) {
-		This->lpvtbl = (ICOM_VTABLE(IDirectDraw2)*)&xlib_dd2vt;
+		ICOM_VTBL(This) = (ICOM_VTABLE(IDirectDraw2)*)&xlib_dd2vt;
 		IDirectDraw2_AddRef(iface);
 		*obj = This;
 
@@ -4107,7 +4107,7 @@ static HRESULT WINAPI Xlib_IDirectDraw2Impl_QueryInterface(
 		return S_OK;
 	}
 	if ( IsEqualGUID( &IID_IDirectDraw4, refiid ) ) {
-		This->lpvtbl = (ICOM_VTABLE(IDirectDraw2)*)&xlib_dd4vt;
+		ICOM_VTBL(This) = (ICOM_VTABLE(IDirectDraw2)*)&xlib_dd4vt;
 		IDirectDraw2_AddRef(iface);
 		*obj = This;
 
@@ -4122,7 +4122,7 @@ static HRESULT WINAPI Xlib_IDirectDraw2Impl_QueryInterface(
 		d3d->ref = 1;
 		d3d->ddraw = (IDirectDrawImpl*)This;
 		IDirectDraw2_AddRef(iface);
-		d3d->lpvtbl = &d3dvt;
+		ICOM_VTBL(d3d) = &d3dvt;
 		*obj = d3d;
 
 		TRACE("  Creating IDirect3D interface (%p)\n", *obj);
@@ -4136,7 +4136,7 @@ static HRESULT WINAPI Xlib_IDirectDraw2Impl_QueryInterface(
 		d3d->ref = 1;
 		d3d->ddraw = (IDirectDrawImpl*)This;
 		IDirectDraw2_AddRef(iface);
-		d3d->lpvtbl = &d3d2vt;
+		ICOM_VTBL(d3d) = &d3d2vt;
 		*obj = d3d;
 
 		TRACE("  Creating IDirect3D2 interface (%p)\n", *obj);
@@ -4927,7 +4927,7 @@ static HRESULT WINAPI DGA_DirectDrawCreate( LPDIRECTDRAW *lplpDD, LPUNKNOWN pUnk
 	        return DDERR_GENERIC;
 	}
 	*ilplpDD = (IDirectDrawImpl*)HeapAlloc(GetProcessHeap(),HEAP_ZERO_MEMORY,sizeof(IDirectDrawImpl));
-	(*ilplpDD)->lpvtbl = &dga_ddvt;
+	ICOM_VTBL(*ilplpDD) = &dga_ddvt;
 	(*ilplpDD)->ref = 1;
 	TSXF86DGAQueryVersion(display,&major,&minor);
 	TRACE("XF86DGA is version %d.%d\n",major,minor);
@@ -4997,7 +4997,7 @@ static HRESULT WINAPI Xlib_DirectDrawCreate( LPDIRECTDRAW *lplpDD, LPUNKNOWN pUn
 	int depth;
 
 	*ilplpDD = (IDirectDrawImpl*)HeapAlloc(GetProcessHeap(),HEAP_ZERO_MEMORY,sizeof(IDirectDrawImpl));
-	(*ilplpDD)->lpvtbl = &xlib_ddvt;
+	ICOM_VTBL(*ilplpDD) = &xlib_ddvt;
 	(*ilplpDD)->ref = 1;
 	(*ilplpDD)->d.drawable = 0; /* in SetDisplayMode */
 
@@ -5097,7 +5097,7 @@ HRESULT WINAPI DirectDrawCreate( LPGUID lpGUID, LPDIRECTDRAW *lplpDD, LPUNKNOWN
 typedef struct
 {
     /* IUnknown fields */
-    ICOM_VTABLE(IClassFactory)* lpvtbl;
+    ICOM_VFIELD(IClassFactory);
     DWORD                       ref;
 } IClassFactoryImpl;
 
diff --git a/graphics/ddraw_private.h b/graphics/ddraw_private.h
index e5d8587e280..e55fbb02db6 100644
--- a/graphics/ddraw_private.h
+++ b/graphics/ddraw_private.h
@@ -26,7 +26,7 @@ typedef struct IDirectDrawColorControlImpl IDirectDrawColorControlImpl;
 struct IDirectDrawPaletteImpl
 {
     /* IUnknown fields */
-    ICOM_VTABLE(IDirectDrawPalette)* lpvtbl;
+    ICOM_VFIELD(IDirectDrawPalette);
     DWORD                            ref;
     /* IDirectDrawPalette fields */
     IDirectDrawImpl* ddraw;
@@ -43,7 +43,7 @@ struct IDirectDrawPaletteImpl
 struct IDirectDrawClipperImpl
 {
     /* IUnknown fields */
-    ICOM_VTABLE(IDirectDrawClipper)* lpvtbl;
+    ICOM_VFIELD(IDirectDrawClipper);
     DWORD                            ref;
     /* IDirectDrawClipper fields */
     /* none */
@@ -92,7 +92,7 @@ struct _xlib_directdrawdata
 struct IDirectDrawImpl
 {
     /* IUnknown fields */
-    ICOM_VTABLE(IDirectDraw)* lpvtbl;
+    ICOM_VFIELD(IDirectDraw);
     DWORD                     ref;
     /* IDirectDraw fields */
     struct _common_directdrawdata   d;
@@ -108,7 +108,7 @@ struct IDirectDrawImpl
 struct IDirectDraw2Impl
 {
     /* IUnknown fields */
-    ICOM_VTABLE(IDirectDraw2)* lpvtbl;
+    ICOM_VFIELD(IDirectDraw2);
     DWORD                      ref;
     /* IDirectDraw2 fields */
     struct _common_directdrawdata   d;
@@ -124,7 +124,7 @@ struct IDirectDraw2Impl
 struct IDirectDraw4Impl
 {
     /* IUnknown fields */
-    ICOM_VTABLE(IDirectDraw4)* lpvtbl;
+    ICOM_VFIELD(IDirectDraw4);
     DWORD                      ref;
     /* IDirectDraw4 fields */
     struct _common_directdrawdata   d;
@@ -176,7 +176,7 @@ struct _xlib_directdrawsurface
 struct IDirectDrawSurfaceImpl
 {
     /* IUnknown fields */
-    ICOM_VTABLE(IDirectDrawSurface)* lpvtbl;
+    ICOM_VFIELD(IDirectDrawSurface);
     DWORD                            ref;
     /* IDirectDrawSurface fields */
     struct _common_directdrawsurface	s;
@@ -192,7 +192,7 @@ struct IDirectDrawSurfaceImpl
 struct IDirectDrawSurface2Impl
 {
     /* IUnknown fields */
-    ICOM_VTABLE(IDirectDrawSurface2)* lpvtbl;
+    ICOM_VFIELD(IDirectDrawSurface2);
     DWORD                             ref;
     /* IDirectDrawSurface2 fields */
     struct _common_directdrawsurface	s;
@@ -208,7 +208,7 @@ struct IDirectDrawSurface2Impl
 struct IDirectDrawSurface3Impl
 {
     /* IUnknown fields */
-    ICOM_VTABLE(IDirectDrawSurface3)* lpvtbl;
+    ICOM_VFIELD(IDirectDrawSurface3);
     DWORD                             ref;
     /* IDirectDrawSurface3 fields */
     struct _common_directdrawsurface	s;
@@ -224,7 +224,7 @@ struct IDirectDrawSurface3Impl
 struct IDirectDrawSurface4Impl
 {
     /* IUnknown fields */
-    ICOM_VTABLE(IDirectDrawSurface4)* lpvtbl;
+    ICOM_VFIELD(IDirectDrawSurface4);
     DWORD                             ref;
     /* IDirectDrawSurface4 fields */
     struct _common_directdrawsurface	s;
@@ -245,7 +245,7 @@ struct _surface_chain {
 struct IDirectDrawColorControlImpl
 {
     /* IUnknown fields */
-    ICOM_VTABLE(IDirectDrawColorControl)* lpvtbl;
+    ICOM_VFIELD(IDirectDrawColorControl);
     DWORD                                 ref;
     /* IDirectDrawColorControl fields */
     /* none */
diff --git a/programs/avitools/aviplay.c b/programs/avitools/aviplay.c
index 1931af2f4d4..97cab63d2a4 100644
--- a/programs/avitools/aviplay.c
+++ b/programs/avitools/aviplay.c
@@ -166,7 +166,7 @@ HRESULT (WINAPI *fnAVIStreamGetFrameClose)(PGETFRAME pg);
     	fprintf(stderr,"DirectDrawCreate: 0x%08lx\n",hres);
 	exit(1);
     }
-    hres = ddraw->lpvtbl->fnSetDisplayMode(ddraw,bmi->biWidth,bmi->biHeight,bmi->biBitCount);
+    hres = IDirectDraw_SetDisplayMode(ddraw,bmi->biWidth,bmi->biHeight,bmi->biBitCount);
     if (hres) {
     	fprintf(stderr,"ddraw.SetDisplayMode: 0x%08lx (change resolution!)\n",hres);
 	exit(1);
@@ -174,7 +174,7 @@ HRESULT (WINAPI *fnAVIStreamGetFrameClose)(PGETFRAME pg);
     dsdesc.dwSize=sizeof(dsdesc);
     dsdesc.dwFlags = DDSD_CAPS;
     dsdesc.ddsCaps.dwCaps = DDSCAPS_PRIMARYSURFACE;
-    hres = ddraw->lpvtbl->fnCreateSurface(ddraw,&dsdesc,&dsurf,NULL);
+    hres = IDirectDraw_CreateSurface(ddraw,&dsdesc,&dsurf,NULL);
     if (hres) {
     	fprintf(stderr,"ddraw.CreateSurface: 0x%08lx\n",hres);
 	exit(1);
@@ -183,18 +183,18 @@ HRESULT (WINAPI *fnAVIStreamGetFrameClose)(PGETFRAME pg);
     	RGBQUAD		*rgb = (RGBQUAD*)(bmi+1);
 	int		i;
 
-	hres = ddraw->lpvtbl->fnCreatePalette(ddraw,DDPCAPS_8BIT,NULL,&dpal,NULL);
+	hres = IDirectDraw_CreatePalette(ddraw,DDPCAPS_8BIT,NULL,&dpal,NULL);
 	if (hres) {
 	    fprintf(stderr,"ddraw.CreateSurface: 0x%08lx\n",hres);
 	    exit(1);
 	}
-	dsurf->lpvtbl->fnSetPalette(dsurf,dpal);
+	IDirectDrawSurface_SetPalette(dsurf,dpal);
 	for (i=0;i<bmi->biClrUsed;i++) {
 	    palent[i].peRed = rgb[i].rgbRed;
 	    palent[i].peBlue = rgb[i].rgbBlue;
 	    palent[i].peGreen = rgb[i].rgbGreen;
 	}
-	dpal->lpvtbl->fnSetEntries(dpal,0,0,bmi->biClrUsed,palent);
+	IDirectDrawPalette_SetEntries(dpal,0,0,bmi->biClrUsed,palent);
     } else
 	dpal = NULL;
 /********************* end display setup *******************************/
@@ -234,11 +234,11 @@ HRESULT (WINAPI *fnAVIStreamGetFrameClose)(PGETFRAME pg);
 		    palent[i].peBlue = rgb[i].rgbBlue;
 		    palent[i].peGreen = rgb[i].rgbGreen;
 		}
-		dpal->lpvtbl->fnSetEntries(dpal,0,0,bmi->biClrUsed,palent);
+		IDirectDrawPalette_SetEntries(dpal,0,0,bmi->biClrUsed,palent);
 	    }
 	}
 	dsdesc.dwSize = sizeof(dsdesc);
-	hres = dsurf->lpvtbl->fnLock(dsurf,NULL,&dsdesc,DDLOCK_WRITEONLY,0);
+	hres = IDirectDrawSurface_Lock(dsurf,NULL,&dsdesc,DDLOCK_WRITEONLY,0);
 	if (hres) {
 	    fprintf(stderr,"dsurf.Lock: 0x%08lx\n",hres);
 	    exit(1);
@@ -250,14 +250,14 @@ HRESULT (WINAPI *fnAVIStreamGetFrameClose)(PGETFRAME pg);
 		    bytesline
 	    );
 	}
-	dsurf->lpvtbl->fnUnlock(dsurf,dsdesc.y.lpSurface);
+	IDirectDrawSurface_Unlock(dsurf,dsdesc.y.lpSurface);
     }
     tend = time(NULL);
     fnAVIStreamGetFrameClose(vidgetframe);
 
-    ((IUnknown*)dsurf)->lpvtbl->fnRelease((IUnknown*)dsurf);
-    ddraw->lpvtbl->fnRestoreDisplayMode(ddraw);
-    ((IUnknown*)ddraw)->lpvtbl->fnRelease((IUnknown*)ddraw);
+    IDirectDrawSurface_Release(dsurf);
+    IDirectDraw_RestoreDisplayMode(ddraw);
+    IDirectDraw_Release(ddraw);
     if (vids) fnAVIStreamRelease(vids);
     if (auds) fnAVIStreamRelease(auds);
     fprintf(stderr,"%d frames at %g frames/s\n",pos,pos*1.0/(tend-tstart));
diff --git a/windows/dinput.c b/windows/dinput.c
index 277381d1ecc..a8b0175ce42 100644
--- a/windows/dinput.c
+++ b/windows/dinput.c
@@ -67,7 +67,7 @@ typedef struct SysMouseAImpl SysMouseAImpl;
 
 struct IDirectInputDevice2AImpl
 {
-        ICOM_VTABLE(IDirectInputDevice2A)* lpvtbl;
+        ICOM_VFIELD(IDirectInputDevice2A);
         DWORD                           ref;
         GUID                            guid;
 };
@@ -75,7 +75,7 @@ struct IDirectInputDevice2AImpl
 struct SysKeyboardAImpl
 {
         /* IDirectInputDevice2AImpl */
-        ICOM_VTABLE(IDirectInputDevice2A)* lpvtbl;
+        ICOM_VFIELD(IDirectInputDevice2A);
         DWORD                           ref;
         GUID                            guid;
         /* SysKeyboardAImpl */
@@ -88,7 +88,7 @@ static ICOM_VTABLE(IDirectInputDevice2A) JoystickAvt;
 struct JoystickAImpl
 {
         /* IDirectInputDevice2AImpl */
-        ICOM_VTABLE(IDirectInputDevice2A)* lpvtbl;
+        ICOM_VFIELD(IDirectInputDevice2A);
         DWORD                           ref;
         GUID                            guid;
 
@@ -106,7 +106,7 @@ struct JoystickAImpl
 struct SysMouseAImpl
 {
         /* IDirectInputDevice2AImpl */
-        ICOM_VTABLE(IDirectInputDevice2A)* lpvtbl;
+        ICOM_VFIELD(IDirectInputDevice2A);
         DWORD                           ref;
         GUID                            guid;
 
@@ -180,7 +180,7 @@ static void _dump_cooperativelevel(DWORD dwFlags) {
 
 struct IDirectInputAImpl
 {
-        ICOM_VTABLE(IDirectInputA)* lpvtbl;
+        ICOM_VFIELD(IDirectInputA);
         DWORD                   ref;
 };
 
@@ -195,7 +195,7 @@ HRESULT WINAPI DirectInputCreateA(HINSTANCE hinst, DWORD dwVersion, LPDIRECTINPU
 	);
 	This = (IDirectInputAImpl*)HeapAlloc(GetProcessHeap(),0,sizeof(IDirectInputAImpl));
 	This->ref = 1;
-	This->lpvtbl = &ddiavt;
+	ICOM_VTBL(This) = &ddiavt;
 	*ppDI=(IDirectInputA*)This;
 	return 0;
 }
@@ -296,7 +296,7 @@ static HRESULT WINAPI IDirectInputAImpl_CreateDevice(
                 SysKeyboardAImpl* newDevice;
 		newDevice = HeapAlloc(GetProcessHeap(),HEAP_ZERO_MEMORY,sizeof(SysKeyboardAImpl));
 		newDevice->ref = 1;
-		newDevice->lpvtbl = &SysKeyboardAvt;
+		ICOM_VTBL(newDevice) = &SysKeyboardAvt;
 		memcpy(&(newDevice->guid),rguid,sizeof(*rguid));
 		memset(newDevice->keystate,0,256);
                 *pdev=(IDirectInputDeviceA*)newDevice;
@@ -307,7 +307,7 @@ static HRESULT WINAPI IDirectInputAImpl_CreateDevice(
                 SysMouseAImpl* newDevice;
 		newDevice = HeapAlloc(GetProcessHeap(),HEAP_ZERO_MEMORY,sizeof(SysMouseAImpl));
 		newDevice->ref = 1;
-		newDevice->lpvtbl = &SysMouseAvt;
+		ICOM_VTBL(newDevice) = &SysMouseAvt;
 		InitializeCriticalSection(&(newDevice->crit));
 		MakeCriticalSectionGlobal(&(newDevice->crit));
 		memcpy(&(newDevice->guid),rguid,sizeof(*rguid));
@@ -320,7 +320,7 @@ static HRESULT WINAPI IDirectInputAImpl_CreateDevice(
                 JoystickAImpl* newDevice;
 		newDevice = HeapAlloc(GetProcessHeap(),HEAP_ZERO_MEMORY,sizeof(JoystickAImpl));
 		newDevice->ref		= 1;
-		newDevice->lpvtbl	= &JoystickAvt;
+		ICOM_VTBL(newDevice)	= &JoystickAvt;
 		newDevice->joyfd	= -1;
 		memcpy(&(newDevice->guid),rguid,sizeof(*rguid));
                 *pdev=(IDirectInputDeviceA*)newDevice;