- Use Interlocked* instead of ++/-- in AddRef/Release.

- Use only stored result of Interlocked* in AddRef/Release.
- Expand TRACEs to display the ref count.

dlls/dmsynth/dmsynth_main.c

@@ -40,13 +40,13 @@ static HRESULT WINAPI SynthCF_QueryInterface(LPCLASSFACTORY iface,REFIID riid,LP
 
 static ULONG WINAPI SynthCF_AddRef(LPCLASSFACTORY iface) {
 	IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
-	return ++(This->ref);
+	return InterlockedIncrement(&This->ref);
 }
 
 static ULONG WINAPI SynthCF_Release(LPCLASSFACTORY iface) {
 	IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
 	/* static class, won't be  freed */
-	return --(This->ref);
+	return InterlockedDecrement(&This->ref);
 }
 
 static HRESULT WINAPI SynthCF_CreateInstance(LPCLASSFACTORY iface, LPUNKNOWN pOuter, REFIID riid, LPVOID *ppobj) {
@@ -82,13 +82,13 @@ static HRESULT WINAPI SynthSinkCF_QueryInterface(LPCLASSFACTORY iface,REFIID rii
 
 static ULONG WINAPI SynthSinkCF_AddRef(LPCLASSFACTORY iface) {
 	IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
-	return ++(This->ref);
+	return InterlockedIncrement(&This->ref);
 }
 
 static ULONG WINAPI SynthSinkCF_Release(LPCLASSFACTORY iface) {
 	IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
 	/* static class, won't be  freed */
-	return --(This->ref);
+	return InterlockedDecrement(&This->ref);
 }
 
 static HRESULT WINAPI SynthSinkCF_CreateInstance(LPCLASSFACTORY iface, LPUNKNOWN pOuter, REFIID riid, LPVOID *ppobj) {

dlls/dmsynth/synth.c

@@ -39,18 +39,23 @@ HRESULT WINAPI IDirectMusicSynth8Impl_QueryInterface (LPDIRECTMUSICSYNTH8 iface,
 
 ULONG WINAPI IDirectMusicSynth8Impl_AddRef (LPDIRECTMUSICSYNTH8 iface) {
 	IDirectMusicSynth8Impl *This = (IDirectMusicSynth8Impl *)iface;
-	TRACE("(%p): AddRef from %ld\n", This, This->ref);
-	return ++(This->ref);
+	ULONG refCount = InterlockedIncrement(&This->ref);
+
+	TRACE("(%p)->(ref before=%lu)\n", This, refCount - 1);
+
+	return refCount;
 }
 
 ULONG WINAPI IDirectMusicSynth8Impl_Release (LPDIRECTMUSICSYNTH8 iface) {
 	IDirectMusicSynth8Impl *This = (IDirectMusicSynth8Impl *)iface;
-	ULONG ref = --This->ref;
-	TRACE("(%p): ReleaseRef to %ld\n", This, This->ref);
-	if (ref == 0) {
+	ULONG refCount = InterlockedDecrement(&This->ref);
+
+	TRACE("(%p)->(ref before=%lu)\n", This, refCount + 1);
+
+	if (!refCount) {
 		HeapFree(GetProcessHeap(), 0, This);
 	}
-	return ref;
+	return refCount;
 }
 
 /* IDirectMusicSynth8Impl IDirectMusicSynth part: */

dlls/dmsynth/synthsink.c

@@ -38,18 +38,23 @@ HRESULT WINAPI IDirectMusicSynthSinkImpl_QueryInterface (LPDIRECTMUSICSYNTHSINK
 
 ULONG WINAPI IDirectMusicSynthSinkImpl_AddRef (LPDIRECTMUSICSYNTHSINK iface) {
 	IDirectMusicSynthSinkImpl *This = (IDirectMusicSynthSinkImpl *)iface;
-	TRACE("(%p): AddRef from %ld\n", This, This->ref);
-	return ++(This->ref);
+	ULONG refCount = InterlockedIncrement(&This->ref);
+
+	TRACE("(%p)->(ref before=%lu)\n", This, refCount - 1);
+
+	return refCount;
 }
 
 ULONG WINAPI IDirectMusicSynthSinkImpl_Release (LPDIRECTMUSICSYNTHSINK iface) {
 	IDirectMusicSynthSinkImpl *This = (IDirectMusicSynthSinkImpl *)iface;
-	ULONG ref = --This->ref;
-	TRACE("(%p): ReleaseRef to %ld\n", This, This->ref);
-	if (ref == 0) {
+	ULONG refCount = InterlockedDecrement(&This->ref);
+
+	TRACE("(%p)->(ref before=%lu)\n", This, refCount + 1);
+
+	if (!refCount) {
 		HeapFree(GetProcessHeap(), 0, This);
 	}
-	return ref;
+	return refCount;
 }
 
 /* IDirectMusicSynthSinkImpl IDirectMusicSynthSink part: */

dlls/dmusic/buffer.c

@@ -37,18 +37,23 @@ HRESULT WINAPI IDirectMusicBufferImpl_QueryInterface (LPDIRECTMUSICBUFFER iface,
 
 ULONG WINAPI IDirectMusicBufferImpl_AddRef (LPDIRECTMUSICBUFFER iface) {
 	IDirectMusicBufferImpl *This = (IDirectMusicBufferImpl *)iface;
-	TRACE("(%p): AddRef from %ld\n", This, This->ref);
-	return ++(This->ref);
+	ULONG refCount = InterlockedIncrement(&This->ref);
+
+	TRACE("(%p)->(ref before=%lu)\n", This, refCount - 1);
+
+	return refCount;
 }
 
 ULONG WINAPI IDirectMusicBufferImpl_Release (LPDIRECTMUSICBUFFER iface) {
 	IDirectMusicBufferImpl *This = (IDirectMusicBufferImpl *)iface;
-	ULONG ref = --This->ref;
-	TRACE("(%p): ReleaseRef to %ld\n", This, This->ref);
-	if (ref == 0) {
+	ULONG refCount = InterlockedDecrement(&This->ref);
+
+	TRACE("(%p)->(ref before=%lu)\n", This, refCount + 1);
+
+	if (!refCount) {
 		HeapFree(GetProcessHeap(), 0, This);
 	}
-	return ref;
+	return refCount;
 }
 
 /* IDirectMusicBufferImpl IDirectMusicBuffer part: */

dlls/dmusic/clock.c

@@ -38,18 +38,23 @@ HRESULT WINAPI IReferenceClockImpl_QueryInterface (IReferenceClock *iface, REFII
 
 ULONG WINAPI IReferenceClockImpl_AddRef (IReferenceClock *iface) {
 	IReferenceClockImpl *This = (IReferenceClockImpl *)iface;
-	TRACE("(%p): AddRef from %ld\n", This, This->ref);
-	return ++(This->ref);
+	ULONG refCount = InterlockedIncrement(&This->ref);
+
+	TRACE("(%p)->(ref before=%lu)\n", This, refCount - 1);
+
+	return refCount;
 }
 
 ULONG WINAPI IReferenceClockImpl_Release (IReferenceClock *iface) {
 	IReferenceClockImpl *This = (IReferenceClockImpl *)iface;
-	ULONG ref = --This->ref;
-	TRACE("(%p): ReleaseRef to %ld\n", This, This->ref);
-	if (ref == 0) {
+	ULONG refCount = InterlockedDecrement(&This->ref);
+
+	TRACE("(%p)->(ref before=%lu)\n", This, refCount + 1);
+
+	if (!refCount) {
 		HeapFree(GetProcessHeap(), 0, This);
 	}
-	return ref;
+	return refCount;
 }
 
 /* IReferenceClockImpl IReferenceClock part: */

dlls/dmusic/collection.c

@@ -54,18 +54,23 @@ HRESULT WINAPI IDirectMusicCollectionImpl_IUnknown_QueryInterface (LPUNKNOWN ifa
 
 ULONG WINAPI IDirectMusicCollectionImpl_IUnknown_AddRef (LPUNKNOWN iface) {
 	ICOM_THIS_MULTI(IDirectMusicCollectionImpl, UnknownVtbl, iface);
-	TRACE("(%p): AddRef from %ld\n", This, This->ref);
-	return ++(This->ref);
+	ULONG refCount = InterlockedIncrement(&This->ref);
+
+	TRACE("(%p)->(ref before=%lu)\n", This, refCount - 1);
+
+	return refCount;
 }
 
 ULONG WINAPI IDirectMusicCollectionImpl_IUnknown_Release (LPUNKNOWN iface) {
 	ICOM_THIS_MULTI(IDirectMusicCollectionImpl, UnknownVtbl, iface);
-	ULONG ref = --This->ref;
-	TRACE("(%p): ReleaseRef to %ld\n", This, This->ref);
-	if (ref == 0) {
+	ULONG refCount = InterlockedDecrement(&This->ref);
+
+	TRACE("(%p)->(ref before=%lu)\n", This, refCount + 1);
+
+	if (!refCount) {
 		HeapFree(GetProcessHeap(), 0, This);
 	}
-	return ref;
+	return refCount;
 }
 
 IUnknownVtbl DirectMusicCollection_Unknown_Vtbl = {

dlls/dmusic/dmusic.c

@@ -40,18 +40,23 @@ HRESULT WINAPI IDirectMusic8Impl_QueryInterface (LPDIRECTMUSIC8 iface, REFIID ri
 
 ULONG WINAPI IDirectMusic8Impl_AddRef (LPDIRECTMUSIC8 iface) {
 	IDirectMusic8Impl *This = (IDirectMusic8Impl *)iface;
-	TRACE("(%p): AddRef from %ld\n", This, This->ref);
-	return ++(This->ref);
+	ULONG refCount = InterlockedIncrement(&This->ref);
+
+	TRACE("(%p)->(ref before=%lu)\n", This, refCount - 1);
+
+	return refCount;
 }
 
 ULONG WINAPI IDirectMusic8Impl_Release (LPDIRECTMUSIC8 iface) {
 	IDirectMusic8Impl *This = (IDirectMusic8Impl *)iface;
-	ULONG ref = --This->ref;
-	TRACE("(%p): ReleaseRef to %ld\n", This, This->ref);
-	if (ref == 0) {
+	ULONG refCount = InterlockedDecrement(&This->ref);
+
+	TRACE("(%p)->(ref before=%lu)\n", This, refCount + 1);
+
+	if (!refCount) {
 		HeapFree(GetProcessHeap(), 0, This);
 	}
-	return ref;
+	return refCount;
 }
 
 /* IDirectMusic8Impl IDirectMusic part: */

dlls/dmusic/dmusic_main.c

@@ -40,13 +40,13 @@ static HRESULT WINAPI DirectMusicCF_QueryInterface(LPCLASSFACTORY iface,REFIID r
 
 static ULONG WINAPI DirectMusicCF_AddRef(LPCLASSFACTORY iface) {
 	IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
-	return ++(This->ref);
+	return InterlockedIncrement(&This->ref);
 }
 
 static ULONG WINAPI DirectMusicCF_Release(LPCLASSFACTORY iface) {
 	IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
 	/* static class, won't be  freed */
-	return --(This->ref);
+	return InterlockedDecrement(&This->ref);
 }
 
 static HRESULT WINAPI DirectMusicCF_CreateInstance(LPCLASSFACTORY iface, LPUNKNOWN pOuter, REFIID riid, LPVOID *ppobj) {
@@ -82,13 +82,13 @@ static HRESULT WINAPI CollectionCF_QueryInterface(LPCLASSFACTORY iface,REFIID ri
 
 static ULONG WINAPI CollectionCF_AddRef(LPCLASSFACTORY iface) {
 	IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
-	return ++(This->ref);
+	return InterlockedIncrement(&This->ref);
 }
 
 static ULONG WINAPI CollectionCF_Release(LPCLASSFACTORY iface) {
 	IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
 	/* static class, won't be  freed */
-	return --(This->ref);
+	return InterlockedDecrement(&This->ref);
 }
 
 static HRESULT WINAPI CollectionCF_CreateInstance(LPCLASSFACTORY iface, LPUNKNOWN pOuter, REFIID riid, LPVOID *ppobj) {

dlls/dmusic/download.c

@@ -38,18 +38,23 @@ HRESULT WINAPI IDirectMusicDownloadImpl_QueryInterface (LPDIRECTMUSICDOWNLOAD if
 
 ULONG WINAPI IDirectMusicDownloadImpl_AddRef (LPDIRECTMUSICDOWNLOAD iface) {
 	IDirectMusicDownloadImpl *This = (IDirectMusicDownloadImpl *)iface;
-	TRACE("(%p): AddRef from %ld\n", This, This->ref);
-	return ++(This->ref);
+	ULONG refCount = InterlockedIncrement(&This->ref);
+
+	TRACE("(%p)->(ref before=%lu)\n", This, refCount - 1);
+
+	return refCount;
 }
 
 ULONG WINAPI IDirectMusicDownloadImpl_Release (LPDIRECTMUSICDOWNLOAD iface) {
 	IDirectMusicDownloadImpl *This = (IDirectMusicDownloadImpl *)iface;
-	ULONG ref = --This->ref;
-	TRACE("(%p): ReleaseRef to %ld\n", This, This->ref);
-	if (ref == 0) {
+	ULONG refCount = InterlockedDecrement(&This->ref);
+
+	TRACE("(%p)->(ref before=%lu)\n", This, refCount + 1);
+
+	if (!refCount) {
 		HeapFree(GetProcessHeap(), 0, This);
 	}
-	return ref;
+	return refCount;
 }
 
 /* IDirectMusicDownloadImpl IDirectMusicDownload part: */

dlls/dmusic/downloadedinstrument.c

@@ -38,18 +38,23 @@ HRESULT WINAPI IDirectMusicDownloadedInstrumentImpl_QueryInterface (LPDIRECTMUSI
 
 ULONG WINAPI IDirectMusicDownloadedInstrumentImpl_AddRef (LPDIRECTMUSICDOWNLOADEDINSTRUMENT iface) {
 	IDirectMusicDownloadedInstrumentImpl *This = (IDirectMusicDownloadedInstrumentImpl *)iface;
-	TRACE("(%p): AddRef from %ld\n", This, This->ref);
-	return ++(This->ref);
+	ULONG refCount = InterlockedIncrement(&This->ref);
+
+	TRACE("(%p)->(ref before=%lu)\n", This, refCount - 1);
+
+	return refCount;
 }
 
 ULONG WINAPI IDirectMusicDownloadedInstrumentImpl_Release (LPDIRECTMUSICDOWNLOADEDINSTRUMENT iface) {
 	IDirectMusicDownloadedInstrumentImpl *This = (IDirectMusicDownloadedInstrumentImpl *)iface;
-	ULONG ref = --This->ref;
-	TRACE("(%p): ReleaseRef to %ld\n", This, This->ref);
-	if (ref == 0) {
+	ULONG refCount = InterlockedDecrement(&This->ref);
+
+	TRACE("(%p)->(ref before=%lu)\n", This, refCount + 1);
+
+	if (!refCount) {
 		HeapFree(GetProcessHeap(), 0, This);
 	}
-	return ref;
+	return refCount;
 }
 
 /* IDirectMusicDownloadedInstrumentImpl IDirectMusicDownloadedInstrument part: */

dlls/dmusic/instrument.c

@@ -54,18 +54,23 @@ HRESULT WINAPI IDirectMusicInstrumentImpl_IUnknown_QueryInterface (LPUNKNOWN ifa
 
 ULONG WINAPI IDirectMusicInstrumentImpl_IUnknown_AddRef (LPUNKNOWN iface) {
 	ICOM_THIS_MULTI(IDirectMusicInstrumentImpl, UnknownVtbl, iface);
-	TRACE("(%p): AddRef from %ld\n", This, This->ref);
-	return ++(This->ref);
+	ULONG refCount = InterlockedIncrement(&This->ref);
+
+	TRACE("(%p)->(ref before=%lu)\n", This, refCount - 1);
+
+	return refCount;
 }
 
 ULONG WINAPI IDirectMusicInstrumentImpl_IUnknown_Release (LPUNKNOWN iface) {
 	ICOM_THIS_MULTI(IDirectMusicInstrumentImpl, UnknownVtbl, iface);
-	ULONG ref = --This->ref;
-	TRACE("(%p): ReleaseRef to %ld\n", This, This->ref);
-	if (ref == 0) {
+	ULONG refCount = InterlockedDecrement(&This->ref);
+
+	TRACE("(%p)->(ref before=%lu)\n", This, refCount + 1);
+
+	if (!refCount) {
 		HeapFree(GetProcessHeap(), 0, This);
 	}
-	return ref;
+	return refCount;
 }
 
 IUnknownVtbl DirectMusicInstrument_Unknown_Vtbl = {

dlls/dmusic/port.c

@@ -37,18 +37,23 @@ HRESULT WINAPI IDirectMusicPortImpl_QueryInterface (LPDIRECTMUSICPORT iface, REF
 
 ULONG WINAPI IDirectMusicPortImpl_AddRef (LPDIRECTMUSICPORT iface) {
 	IDirectMusicPortImpl *This = (IDirectMusicPortImpl *)iface;
-	TRACE("(%p): AddRef from %ld\n", This, This->ref);
-	return ++(This->ref);
+	ULONG refCount = InterlockedIncrement(&This->ref);
+
+	TRACE("(%p)->(ref before=%lu)\n", This, refCount - 1);
+
+	return refCount;
 }
 
 ULONG WINAPI IDirectMusicPortImpl_Release (LPDIRECTMUSICPORT iface) {
 	IDirectMusicPortImpl *This = (IDirectMusicPortImpl *)iface;
-	ULONG ref = --This->ref;
-	TRACE("(%p): ReleaseRef to %ld\n", This, This->ref);
-	if (ref == 0) {
+	ULONG refCount = InterlockedDecrement(&This->ref);
+
+	TRACE("(%p)->(ref before=%lu)\n", This, refCount + 1);
+
+	if (!refCount) {
 		HeapFree(GetProcessHeap(), 0, This);
 	}
-	return ref;
+	return refCount;
 }
 
 /* IDirectMusicPortImpl IDirectMusicPort part: */

dlls/dmusic/portdownload.c

@@ -37,18 +37,23 @@ HRESULT WINAPI IDirectMusicPortDownloadImpl_QueryInterface (LPDIRECTMUSICPORTDOW
 
 ULONG WINAPI IDirectMusicPortDownloadImpl_AddRef (LPDIRECTMUSICPORTDOWNLOAD iface) {
 	IDirectMusicPortDownloadImpl *This = (IDirectMusicPortDownloadImpl *)iface;
-	TRACE("(%p): AddRef from %ld\n", This, This->ref);
-	return ++(This->ref);
+	ULONG refCount = InterlockedIncrement(&This->ref);
+
+	TRACE("(%p)->(ref before=%lu)\n", This, refCount - 1);
+
+	return refCount;
 }
 
 ULONG WINAPI IDirectMusicPortDownloadImpl_Release (LPDIRECTMUSICPORTDOWNLOAD iface) {
 	IDirectMusicPortDownloadImpl *This = (IDirectMusicPortDownloadImpl *)iface;
-	ULONG ref = --This->ref;
-	TRACE("(%p): ReleaseRef to %ld\n", This, This->ref);
-	if (ref == 0) {
+	ULONG refCount = InterlockedDecrement(&This->ref);
+
+	TRACE("(%p)->(ref before=%lu)\n", This, refCount + 1);
+
+	if (!refCount) {
 		HeapFree(GetProcessHeap(), 0, This);
 	}
-	return ref;
+	return refCount;
 }
 
 /* IDirectMusicPortDownload Interface follow: */

dlls/dmusic/thru.c

@@ -38,18 +38,23 @@ HRESULT WINAPI IDirectMusicThruImpl_QueryInterface (LPDIRECTMUSICTHRU iface, REF
 
 ULONG WINAPI IDirectMusicThruImpl_AddRef (LPDIRECTMUSICTHRU iface) {
 	IDirectMusicThruImpl *This = (IDirectMusicThruImpl *)iface;
-	TRACE("(%p): AddRef from %ld\n", This, This->ref);
-	return ++(This->ref);
+	ULONG refCount = InterlockedIncrement(&This->ref);
+
+	TRACE("(%p)->(ref before=%lu)\n", This, refCount - 1);
+
+	return refCount;
 }
 
 ULONG WINAPI IDirectMusicThruImpl_Release (LPDIRECTMUSICTHRU iface) {
 	IDirectMusicThruImpl *This = (IDirectMusicThruImpl *)iface;
-	ULONG ref = --This->ref;
-	TRACE("(%p): ReleaseRef to %ld\n", This, This->ref);
-	if (ref == 0) {
+	ULONG refCount = InterlockedDecrement(&This->ref);
+
+	TRACE("(%p)->(ref before=%lu)\n", This, refCount + 1);
+
+	if (!refCount) {
 		HeapFree(GetProcessHeap(), 0, This);
 	}
-	return ref;
+	return refCount;
 }
 
 /* IDirectMusicThru Interface follow: */

dlls/dpnet/address.c

@@ -54,18 +54,23 @@ HRESULT WINAPI IDirectPlay8AddressImpl_QueryInterface(PDIRECTPLAY8ADDRESS iface,
 
 ULONG WINAPI IDirectPlay8AddressImpl_AddRef(PDIRECTPLAY8ADDRESS iface) {
     IDirectPlay8AddressImpl *This = (IDirectPlay8AddressImpl *)iface;
-    TRACE("(%p) : AddRef from %ld\n", This, This->ref);
-    return ++(This->ref);
+    ULONG refCount = InterlockedIncrement(&This->ref);
+
+    TRACE("(%p)->(ref before=%lu)\n", This, refCount - 1);
+
+    return refCount;
 }
 
 ULONG WINAPI IDirectPlay8AddressImpl_Release(PDIRECTPLAY8ADDRESS iface) {
     IDirectPlay8AddressImpl *This = (IDirectPlay8AddressImpl *)iface;
-    ULONG ref = --This->ref;
-    TRACE("(%p) : ReleaseRef to %ld\n", This, This->ref);
-    if (ref == 0) {
+    ULONG refCount = InterlockedDecrement(&This->ref);
+
+    TRACE("(%p)->(ref before=%lu)\n", This, refCount + 1);
+
+    if (!refCount) {
         HeapFree(GetProcessHeap(), 0, This);
     }
-    return ref;
+    return refCount;
 }
 
 /* IDirectPlay8Address Interface follow: */

dlls/dpnet/client.c

@@ -54,18 +54,23 @@ HRESULT WINAPI IDirectPlay8ClientImpl_QueryInterface(PDIRECTPLAY8CLIENT iface, R
 
 ULONG WINAPI IDirectPlay8ClientImpl_AddRef(PDIRECTPLAY8CLIENT iface) {
     IDirectPlay8ClientImpl *This = (IDirectPlay8ClientImpl *)iface;
-    TRACE("(%p) : AddRef from %ld\n", This, This->ref);
-    return ++(This->ref);
+    ULONG refCount = InterlockedIncrement(&This->ref);
+
+    TRACE("(%p)->(ref before=%lu)\n", This, refCount - 1);
+
+    return refCount;
 }
 
 ULONG WINAPI IDirectPlay8ClientImpl_Release(PDIRECTPLAY8CLIENT iface) {
     IDirectPlay8ClientImpl *This = (IDirectPlay8ClientImpl *)iface;
-    ULONG ref = --This->ref;
-    TRACE("(%p) : ReleaseRef to %ld\n", This, This->ref);
-    if (ref == 0) {
+    ULONG refCount = InterlockedDecrement(&This->ref);
+
+    TRACE("(%p)->(ref before=%lu)\n", This, refCount + 1);
+
+    if (!refCount) {
         HeapFree(GetProcessHeap(), 0, This);
     }
-    return ref;
+    return refCount;
 }
 
 /* IDirectPlay8Client Interface follow: */

dlls/dswave/dswave.c

@@ -64,18 +64,23 @@ HRESULT WINAPI IDirectMusicWaveImpl_IUnknown_QueryInterface (LPUNKNOWN iface, RE
 
 ULONG WINAPI IDirectMusicWaveImpl_IUnknown_AddRef (LPUNKNOWN iface) {
 	ICOM_THIS_MULTI(IDirectMusicWaveImpl, UnknownVtbl, iface);
-	TRACE("(%p): AddRef from %ld\n", This, This->ref);
-	return ++(This->ref);
+	ULONG refCount = InterlockedIncrement(&This->ref);
+
+	TRACE("(%p)->(ref before=%lu)\n", This, refCount - 1);
+
+	return refCount;
 }
 
 ULONG WINAPI IDirectMusicWaveImpl_IUnknown_Release (LPUNKNOWN iface) {
 	ICOM_THIS_MULTI(IDirectMusicWaveImpl, UnknownVtbl, iface);
-	ULONG ref = --This->ref;
-	TRACE("(%p): ReleaseRef to %ld\n", This, This->ref);
-	if (ref == 0) {
+	ULONG refCount = InterlockedDecrement(&This->ref);
+
+	TRACE("(%p)->(ref before=%lu)\n", This, refCount + 1);
+
+	if (!refCount) {
 		HeapFree(GetProcessHeap(), 0, This);
 	}
-	return ref;
+	return refCount;
 }
 
 IUnknownVtbl DirectMusicWave_Unknown_Vtbl = {

dlls/dswave/dswave_main.c

@@ -40,13 +40,13 @@ static HRESULT WINAPI WaveCF_QueryInterface(LPCLASSFACTORY iface,REFIID riid,LPV
 
 static ULONG WINAPI WaveCF_AddRef(LPCLASSFACTORY iface) {
 	IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
-	return ++(This->ref);
+	return InterlockedIncrement(&This->ref);
 }
 
 static ULONG WINAPI WaveCF_Release(LPCLASSFACTORY iface) {
 	IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
 	/* static class, won't be  freed */
-	return --(This->ref);
+	return InterlockedDecrement(&This->ref);
 }
 
 static HRESULT WINAPI WaveCF_CreateInstance(LPCLASSFACTORY iface, LPUNKNOWN pOuter, REFIID riid, LPVOID *ppobj) {

dlls/dxdiagn/container.c

@@ -44,18 +44,23 @@ HRESULT WINAPI IDxDiagContainerImpl_QueryInterface(PDXDIAGCONTAINER iface, REFII
 
 ULONG WINAPI IDxDiagContainerImpl_AddRef(PDXDIAGCONTAINER iface) {
     IDxDiagContainerImpl *This = (IDxDiagContainerImpl *)iface;
-    TRACE("(%p) : AddRef from %ld\n", This, This->ref);
-    return ++(This->ref);
+    ULONG refCount = InterlockedIncrement(&This->ref);
+
+    TRACE("(%p)->(ref before=%lu)\n", This, refCount - 1);
+
+    return refCount;
 }
 
 ULONG WINAPI IDxDiagContainerImpl_Release(PDXDIAGCONTAINER iface) {
     IDxDiagContainerImpl *This = (IDxDiagContainerImpl *)iface;
-    ULONG ref = --This->ref;
-    TRACE("(%p) : ReleaseRef to %ld\n", This, This->ref);
-    if (ref == 0) {
+    ULONG refCount = InterlockedDecrement(&This->ref);
+
+    TRACE("(%p)->(ref before=%lu)\n", This, refCount + 1);
+
+    if (!refCount) {
         HeapFree(GetProcessHeap(), 0, This);
     }
-    return ref;
+    return refCount;
 }
 
 /* IDxDiagContainer Interface follow: */

dlls/dxdiagn/provider.c

@@ -43,18 +43,23 @@ HRESULT WINAPI IDxDiagProviderImpl_QueryInterface(PDXDIAGPROVIDER iface, REFIID
 
 ULONG WINAPI IDxDiagProviderImpl_AddRef(PDXDIAGPROVIDER iface) {
     IDxDiagProviderImpl *This = (IDxDiagProviderImpl *)iface;
-    TRACE("(%p) : AddRef from %ld\n", This, This->ref);
-    return ++(This->ref);
+    ULONG refCount = InterlockedIncrement(&This->ref);
+
+    TRACE("(%p)->(ref before=%lu)\n", This, refCount - 1);
+
+    return refCount;
 }
 
 ULONG WINAPI IDxDiagProviderImpl_Release(PDXDIAGPROVIDER iface) {
     IDxDiagProviderImpl *This = (IDxDiagProviderImpl *)iface;
-    ULONG ref = --This->ref;
-    TRACE("(%p) : ReleaseRef to %ld\n", This, This->ref);
-    if (ref == 0) {
+    ULONG refCount = InterlockedDecrement(&This->ref);
+
+    TRACE("(%p)->(ref before=%lu)\n", This, refCount + 1);
+
+    if (!refCount) {
         HeapFree(GetProcessHeap(), 0, This);
     }
-    return ref;
+    return refCount;
 }
 
 /* IDxDiagProvider Interface follow: */

dlls/msdmo/dmoreg.c

@@ -383,7 +383,7 @@ lerr:
 static ULONG WINAPI IEnumDMO_fnAddRef(IEnumDMO * iface)
 {
     IEnumDMOImpl *This = (IEnumDMOImpl *)iface;
-    return ++(This->ref);
+    return InterlockedIncrement(&This->ref);
 }
 
 
@@ -420,15 +420,14 @@ static HRESULT WINAPI IEnumDMO_fnQueryInterface(
 static ULONG WINAPI IEnumDMO_fnRelease(IEnumDMO * iface)
 {
     IEnumDMOImpl *This = (IEnumDMOImpl *)iface;
+    ULONG refCount = InterlockedDecrement(&This->ref);
 
-    if (!--(This->ref))
+    if (!refCount)
     {
         IEnumDMO_Destructor((IEnumDMO*)This);
         HeapFree(GetProcessHeap(),0,This);
-        return 0;
     }
-
-    return This->ref;
+    return refCount;
 }
 
 

dlls/oleaut32/connpt.c

@@ -196,8 +196,11 @@ static HRESULT WINAPI ConnectionPointImpl_QueryInterface(
 static ULONG WINAPI ConnectionPointImpl_AddRef(IConnectionPoint* iface)
 {
   ConnectionPointImpl *This = (ConnectionPointImpl *)iface;
-  TRACE("(%p)->(ref=%ld)\n", This, This->ref);
-  return InterlockedIncrement(&This->ref);
+  ULONG refCount = InterlockedIncrement(&This->ref);
+
+  TRACE("(%p)->(ref before=%ld)\n", This, refCount - 1);
+
+  return refCount;
 }
 
 /************************************************************************
@@ -209,20 +212,16 @@ static ULONG WINAPI ConnectionPointImpl_Release(
       IConnectionPoint* iface)
 {
   ConnectionPointImpl *This = (ConnectionPointImpl *)iface;
-  ULONG ref;
-  TRACE("(%p)->(ref=%ld)\n", This, This->ref);
+  ULONG refCount = InterlockedDecrement(&This->ref);
 
-  /*
-   * Decrease the reference count on this object.
-   */
-  ref = InterlockedDecrement(&This->ref);
+  TRACE("(%p)->(ref before=%ld)\n", This, refCount + 1);
 
   /*
    * If the reference count goes down to 0, perform suicide.
    */
-  if (ref == 0) ConnectionPointImpl_Destroy(This);
+  if (!refCount) ConnectionPointImpl_Destroy(This);
 
-  return ref;
+  return refCount;
 }
 
 /************************************************************************
@@ -470,11 +469,12 @@ static HRESULT WINAPI EnumConnectionsImpl_QueryInterface(
 static ULONG WINAPI EnumConnectionsImpl_AddRef(IEnumConnections* iface)
 {
   EnumConnectionsImpl *This = (EnumConnectionsImpl *)iface;
-  ULONG ref;
-  TRACE("(%p)->(ref=%ld)\n", This, This->ref);
-  ref = InterlockedIncrement(&This->ref);
+  ULONG refCount = InterlockedIncrement(&This->ref);
+
+  TRACE("(%p)->(ref before=%ld)\n", This, refCount - 1);
+
   IUnknown_AddRef(This->pUnk);
-  return ref;
+  return refCount;
 }
 
 /************************************************************************
@@ -485,22 +485,18 @@ static ULONG WINAPI EnumConnectionsImpl_AddRef(IEnumConnections* iface)
 static ULONG WINAPI EnumConnectionsImpl_Release(IEnumConnections* iface)
 {
   EnumConnectionsImpl *This = (EnumConnectionsImpl *)iface;
-  ULONG ref;
-  TRACE("(%p)->(ref=%ld)\n", This, This->ref);
+  ULONG refCount = InterlockedDecrement(&This->ref);
+
+  TRACE("(%p)->(ref before=%ld)\n", This, refCount + 1);
 
   IUnknown_Release(This->pUnk);
 
-  /*
-   * Decrease the reference count on this object.
-   */
-  ref = InterlockedDecrement(&This->ref);
-
   /*
    * If the reference count goes down to 0, perform suicide.
    */
-  if (ref == 0) EnumConnectionsImpl_Destroy(This);
+  if (!refCount) EnumConnectionsImpl_Destroy(This);
 
-  return ref;
+  return refCount;
 }
 
 /************************************************************************

dlls/oleaut32/dispatch.c

@@ -256,9 +256,11 @@ static HRESULT WINAPI StdDispatch_QueryInterface(
 static ULONG WINAPI StdDispatch_AddRef(LPDISPATCH iface)
 {
     StdDispatch *This = (StdDispatch *)iface;
-    TRACE("()\n");
+    ULONG refCount = InterlockedIncrement(&This->ref);
 
-    return InterlockedIncrement(&This->ref);
+    TRACE("(%p)->(ref before=%lu)\n",This, refCount - 1);
+
+    return refCount;
 }
 
 /******************************************************************************
@@ -269,18 +271,17 @@ static ULONG WINAPI StdDispatch_AddRef(LPDISPATCH iface)
 static ULONG WINAPI StdDispatch_Release(LPDISPATCH iface)
 {
     StdDispatch *This = (StdDispatch *)iface;
-    ULONG ref;
-    TRACE("(%p)->()\n", This);
+    ULONG refCount = InterlockedDecrement(&This->ref);
 
-    ref = InterlockedDecrement(&This->ref);
+    TRACE("(%p)->(ref before=%lu)\n", This, refCount + 1);
 
-    if (ref == 0)
+    if (!refCount)
     {
         ITypeInfo_Release(This->pTypeInfo);
         CoTaskMemFree(This);
     }
 
-    return ref;
+    return refCount;
 }
 
 /******************************************************************************

dlls/oleaut32/olepicture.c

@@ -409,8 +409,11 @@ static ULONG WINAPI OLEPictureImpl_AddRef(
   IPicture* iface)
 {
   OLEPictureImpl *This = (OLEPictureImpl *)iface;
-  TRACE("(%p)->(ref=%ld)\n", This, This->ref);
-  return InterlockedIncrement(&This->ref);
+  ULONG refCount = InterlockedIncrement(&This->ref);
+
+  TRACE("(%p)->(ref before=%ld)\n", This, refCount - 1);
+
+  return refCount;
 }
 
 /************************************************************************
@@ -422,20 +425,16 @@ static ULONG WINAPI OLEPictureImpl_Release(
       IPicture* iface)
 {
   OLEPictureImpl *This = (OLEPictureImpl *)iface;
-  ULONG ret;
-  TRACE("(%p)->(ref=%ld)\n", This, This->ref);
+  ULONG refCount = InterlockedDecrement(&This->ref);
 
-  /*
-   * Decrease the reference count on this object.
-   */
-  ret = InterlockedDecrement(&This->ref);
+  TRACE("(%p)->(ref before=%ld)\n", This, refCount + 1);
 
   /*
    * If the reference count goes down to 0, perform suicide.
    */
-  if (ret==0) OLEPictureImpl_Destroy(This);
+  if (!refCount) OLEPictureImpl_Destroy(This);
 
-  return ret;
+  return refCount;
 }
 
 

dlls/oleaut32/tmarshal.c

@@ -336,29 +336,29 @@ static ULONG WINAPI
 TMProxyImpl_AddRef(LPRPCPROXYBUFFER iface)
 {
     ICOM_THIS_MULTI(TMProxyImpl,lpvtbl2,iface);
+    ULONG refCount = InterlockedIncrement(&This->ref);
 
-    TRACE("()\n");
+    TRACE("(%p)->(ref before=%lu)\n",This, refCount - 1);
 
-    return InterlockedIncrement(&This->ref);
+    return refCount;
 }
 
 static ULONG WINAPI
 TMProxyImpl_Release(LPRPCPROXYBUFFER iface)
 {
-    ULONG refs;
     ICOM_THIS_MULTI(TMProxyImpl,lpvtbl2,iface);
+    ULONG refCount = InterlockedDecrement(&This->ref);
 
-    TRACE("()\n");
+    TRACE("(%p)->(ref before=%lu)\n",This, refCount + 1);
 
-    refs = InterlockedDecrement(&This->ref);
-    if (!refs)
+    if (!refCount)
     {
         DeleteCriticalSection(&This->crit);
         if (This->chanbuf) IRpcChannelBuffer_Release(This->chanbuf);
         VirtualFree(This->asmstubs, 0, MEM_RELEASE);
         CoTaskMemFree(This);
     }
-    return refs;
+    return refCount;
 }
 
 static HRESULT WINAPI
@@ -1505,27 +1505,27 @@ static ULONG WINAPI
 TMStubImpl_AddRef(LPRPCSTUBBUFFER iface)
 {
     TMStubImpl *This = (TMStubImpl *)iface;
+    ULONG refCount = InterlockedIncrement(&This->ref);
         
-    TRACE("(%p) before %lu\n", This, This->ref);
+    TRACE("(%p)->(ref before=%lu)\n", This, refCount - 1);
 
-    return InterlockedIncrement(&This->ref);
+    return refCount;
 }
 
 static ULONG WINAPI
 TMStubImpl_Release(LPRPCSTUBBUFFER iface)
 {
-    ULONG refs;
     TMStubImpl *This = (TMStubImpl *)iface;
+    ULONG refCount = InterlockedDecrement(&This->ref);
 
-    TRACE("(%p) after %lu\n", This, This->ref-1);
+    TRACE("(%p)->(ref before=%lu)\n", This, refCount + 1);
 
-    refs = InterlockedDecrement(&This->ref);
-    if (!refs)
+    if (!refCount)
     {
         IRpcStubBuffer_Disconnect(iface);
         CoTaskMemFree(This);
     }
-    return refs;
+    return refCount;
 }
 
 static HRESULT WINAPI

dlls/shdocvw/classinfo.c

@@ -47,18 +47,22 @@ static HRESULT WINAPI WBPCI_QueryInterface(LPPROVIDECLASSINFO iface,
 static ULONG WINAPI WBPCI_AddRef(LPPROVIDECLASSINFO iface)
 {
     IProvideClassInfoImpl *This = (IProvideClassInfoImpl *)iface;
+    ULONG refCount = InterlockedIncrement(&This->ref);
 
-    TRACE("\n");
-    return ++(This->ref);
+    TRACE("(%p)->(ref before=%lu)\n", This, refCount - 1);
+
+    return refCount;
 }
 
 static ULONG WINAPI WBPCI_Release(LPPROVIDECLASSINFO iface)
 {
     IProvideClassInfoImpl *This = (IProvideClassInfoImpl *)iface;
+    ULONG refCount = InterlockedDecrement(&This->ref);
 
     /* static class, won't be freed */
-    TRACE("\n");
-    return --(This->ref);
+    TRACE("(%p)->(ref before=%lu)\n", This, refCount + 1);
+
+    return refCount;
 }
 
 /* Return an ITypeInfo interface to retrieve type library info about
@@ -102,18 +106,22 @@ static HRESULT WINAPI WBPCI2_QueryInterface(LPPROVIDECLASSINFO2 iface,
 static ULONG WINAPI WBPCI2_AddRef(LPPROVIDECLASSINFO2 iface)
 {
     IProvideClassInfo2Impl *This = (IProvideClassInfo2Impl *)iface;
+    ULONG refCount = InterlockedIncrement(&This->ref);
 
-    TRACE("\n");
-    return ++(This->ref);
+    TRACE("(%p)->(ref before=%lu)\n", This, refCount - 1);
+
+    return refCount;
 }
 
 static ULONG WINAPI WBPCI2_Release(LPPROVIDECLASSINFO2 iface)
 {
     IProvideClassInfo2Impl *This = (IProvideClassInfo2Impl *)iface;
+    ULONG refCount = InterlockedDecrement(&This->ref);
 
     /* static class, won't be freed */
-    TRACE("\n");
-    return --(This->ref);
+    TRACE("(%p)->(ref before=%lu)\n", This, refCount + 1);
+
+    return refCount;
 }
 
 /* Return an ITypeInfo interface to retrieve type library info about

dlls/shdocvw/events.c

@@ -47,18 +47,22 @@ static HRESULT WINAPI WBCPC_QueryInterface(LPCONNECTIONPOINTCONTAINER iface,
 static ULONG WINAPI WBCPC_AddRef(LPCONNECTIONPOINTCONTAINER iface)
 {
     IConnectionPointContainerImpl *This = (IConnectionPointContainerImpl *)iface;
+    ULONG refCount = InterlockedIncrement(&This->ref);
 
-    TRACE("\n");
-    return ++(This->ref);
+    TRACE("(%p)->(ref before=%lu)\n", This, refCount - 1);
+
+    return refCount;
 }
 
 static ULONG WINAPI WBCPC_Release(LPCONNECTIONPOINTCONTAINER iface)
 {
     IConnectionPointContainerImpl *This = (IConnectionPointContainerImpl *)iface;
+    ULONG refCount = InterlockedDecrement(&This->ref);
 
     /* static class, won't be freed */
-    TRACE("\n");
-    return --(This->ref);
+    TRACE("(%p)->(ref before=%lu)\n", This, refCount + 1);
+
+    return refCount;
 }
 
 /* Get a list of connection points inside this container. */
@@ -131,18 +135,22 @@ static HRESULT WINAPI WBCP_QueryInterface(LPCONNECTIONPOINT iface,
 static ULONG WINAPI WBCP_AddRef(LPCONNECTIONPOINT iface)
 {
     IConnectionPointImpl *This = (IConnectionPointImpl *)iface;
+    ULONG refCount = InterlockedIncrement(&This->ref);
 
-    TRACE("\n");
-    return ++(This->ref);
+    TRACE("(%p)->(ref before=%lu)\n", This, refCount - 1);
+
+    return refCount;
 }
 
 static ULONG WINAPI WBCP_Release(LPCONNECTIONPOINT iface)
 {
     IConnectionPointImpl *This = (IConnectionPointImpl *)iface;
+    ULONG refCount = InterlockedDecrement(&This->ref);
 
     /* static class, won't be freed */
-    TRACE("\n");
-    return --(This->ref);
+    TRACE("(%p)->(ref before=%lu)\n", This, refCount + 1);
+
+    return refCount;
 }
 
 static HRESULT WINAPI WBCP_GetConnectionInterface(LPCONNECTIONPOINT iface, IID* pIId)

dlls/shdocvw/factory.c

@@ -55,9 +55,11 @@ static HRESULT WINAPI WBCF_QueryInterface(LPCLASSFACTORY iface,
 static ULONG WINAPI WBCF_AddRef(LPCLASSFACTORY iface)
 {
     IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
+    ULONG refCount = InterlockedIncrement(&This->ref);
 
-    TRACE("\n");
-    return ++(This->ref);
+    TRACE("(%p)->(ref before=%lu)\n", This, refCount - 1);
+
+    return refCount;
 }
 
 /************************************************************************
@@ -66,10 +68,12 @@ static ULONG WINAPI WBCF_AddRef(LPCLASSFACTORY iface)
 static ULONG WINAPI WBCF_Release(LPCLASSFACTORY iface)
 {
     IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
+    ULONG refCount = InterlockedDecrement(&This->ref);
 
     /* static class, won't be freed */
-    TRACE("\n");
-    return --(This->ref);
+    TRACE("(%p)->(ref before=%lu)\n", This, refCount + 1);
+
+    return refCount;
 }
 
 /************************************************************************

dlls/shdocvw/misc.c

@@ -41,18 +41,22 @@ static HRESULT WINAPI WBQA_QueryInterface(LPQUICKACTIVATE iface,
 static ULONG WINAPI WBQA_AddRef(LPQUICKACTIVATE iface)
 {
     IQuickActivateImpl *This = (IQuickActivateImpl *)iface;
+    ULONG refCount = InterlockedIncrement(&This->ref);
 
-    TRACE("\n");
-    return ++(This->ref);
+    TRACE("(%p)->(ref before=%lu)\n", This, refCount - 1);
+
+    return refCount;
 }
 
 static ULONG WINAPI WBQA_Release(LPQUICKACTIVATE iface)
 {
     IQuickActivateImpl *This = (IQuickActivateImpl *)iface;
+    ULONG refCount = InterlockedDecrement(&This->ref);
 
     /* static class, won't be freed */
-    TRACE("\n");
-    return --(This->ref);
+    TRACE("(%p)->(ref before=%lu)\n", This, refCount + 1);
+
+    return refCount;
 }
 
 /* Alternative interface for quicker, easier activation of a control. */

dlls/shdocvw/oleobject.c

@@ -144,9 +144,11 @@ static HRESULT WINAPI WBOOBJ_QueryInterface(LPOLEOBJECT iface,
 static ULONG WINAPI WBOOBJ_AddRef(LPOLEOBJECT iface)
 {
     IOleObjectImpl *This = (IOleObjectImpl *)iface;
+    ULONG refCount = InterlockedIncrement(&This->ref);
 
-    TRACE("\n");
-    return ++(This->ref);
+    TRACE("(%p)->(ref before=%lu)\n", This, refCount - 1);
+
+    return refCount;
 }
 
 /************************************************************************
@@ -155,10 +157,12 @@ static ULONG WINAPI WBOOBJ_AddRef(LPOLEOBJECT iface)
 static ULONG WINAPI WBOOBJ_Release(LPOLEOBJECT iface)
 {
     IOleObjectImpl *This = (IOleObjectImpl *)iface;
+    ULONG refCount = InterlockedDecrement(&This->ref);
 
     /* static class, won't be freed */
-    TRACE("\n");
-    return --(This->ref);
+    TRACE("(%p)->(ref before=%lu)\n", This, refCount + 1);
+
+    return refCount;
 }
 
 /************************************************************************
@@ -457,18 +461,22 @@ static HRESULT WINAPI WBOIPO_QueryInterface(LPOLEINPLACEOBJECT iface,
 static ULONG WINAPI WBOIPO_AddRef(LPOLEINPLACEOBJECT iface)
 {
     IOleInPlaceObjectImpl *This = (IOleInPlaceObjectImpl *)iface;
+    ULONG refCount = InterlockedIncrement(&This->ref);
 
-    TRACE("\n");
-    return ++(This->ref);
+    TRACE("(%p)->(ref before=%lu)\n", This, refCount - 1);
+
+    return refCount;
 }
 
 static ULONG WINAPI WBOIPO_Release(LPOLEINPLACEOBJECT iface)
 {
     IOleInPlaceObjectImpl *This = (IOleInPlaceObjectImpl *)iface;
+    ULONG refCount = InterlockedDecrement(&This->ref);
 
     /* static class, won't be freed */
-    TRACE("\n");
-    return --(This->ref);
+    TRACE("(%p)->(ref before=%lu)\n", This, refCount + 1);
+
+    return refCount;
 }
 
 static HRESULT WINAPI WBOIPO_GetWindow(LPOLEINPLACEOBJECT iface, HWND* phwnd)
@@ -559,18 +567,22 @@ static HRESULT WINAPI WBOC_QueryInterface(LPOLECONTROL iface,
 static ULONG WINAPI WBOC_AddRef(LPOLECONTROL iface)
 {
     IOleControlImpl *This = (IOleControlImpl *)iface;
+    ULONG refCount = InterlockedIncrement(&This->ref);
 
-    TRACE("\n");
-    return ++(This->ref);
+    TRACE("(%p)->(ref before=%lu)\n", This, refCount - 1);
+
+    return refCount;
 }
 
 static ULONG WINAPI WBOC_Release(LPOLECONTROL iface)
 {
     IOleControlImpl *This = (IOleControlImpl *)iface;
+    ULONG refCount = InterlockedDecrement(&This->ref);
 
     /* static class, won't be freed */
-    TRACE("\n");
-    return --(This->ref);
+    TRACE("(%p)->(ref before=%lu)\n", This, refCount + 1);
+
+    return refCount;
 }
 
 static HRESULT WINAPI WBOC_GetControlInfo(LPOLECONTROL iface, LPCONTROLINFO pCI)

dlls/shdocvw/persist.c

@@ -39,18 +39,22 @@ static HRESULT WINAPI WBPS_QueryInterface(LPPERSISTSTORAGE iface,
 static ULONG WINAPI WBPS_AddRef(LPPERSISTSTORAGE iface)
 {
     IPersistStorageImpl *This = (IPersistStorageImpl *)iface;
+    ULONG refCount = InterlockedIncrement(&This->ref);
 
-    TRACE("\n");
-    return ++(This->ref);
+    TRACE("(%p)->(ref before=%lu)\n", This, refCount - 1);
+
+    return refCount;
 }
 
 static ULONG WINAPI WBPS_Release(LPPERSISTSTORAGE iface)
 {
     IPersistStorageImpl *This = (IPersistStorageImpl *)iface;
+    ULONG refCount = InterlockedDecrement(&This->ref);
 
     /* static class, won't be freed */
-    TRACE("\n");
-    return --(This->ref);
+    TRACE("(%p)->(ref before=%lu)\n", This, refCount + 1);
+
+    return refCount;
 }
 
 static HRESULT WINAPI WBPS_GetClassID(LPPERSISTSTORAGE iface, CLSID *pClassID)
@@ -126,18 +130,22 @@ static HRESULT WINAPI WBPSI_QueryInterface(LPPERSISTSTREAMINIT iface,
 static ULONG WINAPI WBPSI_AddRef(LPPERSISTSTREAMINIT iface)
 {
     IPersistStreamInitImpl *This = (IPersistStreamInitImpl *)iface;
+    ULONG refCount = InterlockedIncrement(&This->ref);
 
-    TRACE("\n");
-    return ++(This->ref);
+    TRACE("(%p)->(ref before=%lu)\n", This, refCount - 1);
+
+    return refCount;
 }
 
 static ULONG WINAPI WBPSI_Release(LPPERSISTSTREAMINIT iface)
 {
     IPersistStreamInitImpl *This = (IPersistStreamInitImpl *)iface;
+    ULONG refCount = InterlockedDecrement(&This->ref);
 
     /* static class, won't be freed */
-    TRACE("\n");
-    return --(This->ref);
+    TRACE("(%p)->(ref before=%lu)\n", This, refCount + 1);
+
+    return refCount;
 }
 
 static HRESULT WINAPI WBPSI_GetClassID(LPPERSISTSTREAMINIT iface, CLSID *pClassID)

dlls/shdocvw/webbrowser.c

@@ -38,18 +38,22 @@ static HRESULT WINAPI WB_QueryInterface(IWebBrowser *iface, REFIID riid, LPVOID
 static ULONG WINAPI WB_AddRef(IWebBrowser *iface)
 {
     IWebBrowserImpl *This = (IWebBrowserImpl *)iface;
+    ULONG refCount = InterlockedIncrement(&This->ref);
 
-    TRACE("\n");
-    return ++(This->ref);
+    TRACE("(%p)->(ref before=%lu)\n", This, refCount - 1);
+
+    return refCount;
 }
 
 static ULONG WINAPI WB_Release(IWebBrowser *iface)
 {
     IWebBrowserImpl *This = (IWebBrowserImpl *)iface;
+    ULONG refCount = InterlockedDecrement(&This->ref);
 
     /* static class, won't be freed */
-    TRACE("\n");
-    return --(This->ref);
+    TRACE("(%p)->(ref before=%lu)\n", This, refCount + 1);
+
+    return refCount;
 }
 
 /* IDispatch methods */

dlls/shell32/autocomplete.c

@@ -170,9 +170,11 @@ static ULONG WINAPI IAutoComplete_fnAddRef(
 	IAutoComplete * iface)
 {
     IAutoCompleteImpl *This = (IAutoCompleteImpl *)iface;
+    ULONG refCount = InterlockedIncrement(&This->ref);
     
-    TRACE("(%p)->(%lu)\n",This,This->ref);
-    return ++(This->ref);
+    TRACE("(%p)->(%lu)\n", This, refCount - 1);
+
+    return refCount;
 }
 
 /******************************************************************************
@@ -182,10 +184,11 @@ static ULONG WINAPI IAutoComplete_fnRelease(
 	IAutoComplete * iface)
 {
     IAutoCompleteImpl *This = (IAutoCompleteImpl *)iface;
+    ULONG refCount = InterlockedDecrement(&This->ref);
     
-    TRACE("(%p)->(%lu)\n",This,This->ref);
+    TRACE("(%p)->(%lu)\n", This, refCount + 1);
 
-    if (!--(This->ref)) {
+    if (!refCount) {
 	TRACE(" destroying IAutoComplete(%p)\n",This);
         HeapFree(GetProcessHeap(), 0, This->quickComplete);
         HeapFree(GetProcessHeap(), 0, This->txtbackup);
@@ -194,9 +197,8 @@ static ULONG WINAPI IAutoComplete_fnRelease(
 	if (This->enumstr)
 	    IEnumString_Release(This->enumstr);
 	HeapFree(GetProcessHeap(), 0, This);
-	return 0;
     }
-    return This->ref;
+    return refCount;
 }
 
 /******************************************************************************

dlls/shell32/cpanelfolder.c

@@ -181,26 +181,27 @@ static HRESULT WINAPI ISF_ControlPanel_fnQueryInterface(IShellFolder2 * iface, R
 static ULONG WINAPI ISF_ControlPanel_fnAddRef(IShellFolder2 * iface)
 {
     ICPanelImpl *This = (ICPanelImpl *)iface;
+    ULONG refCount = InterlockedIncrement(&This->ref);
 
-    TRACE("(%p)->(count=%lu)\n", This, This->ref);
+    TRACE("(%p)->(count=%lu)\n", This, refCount - 1);
 
-    return ++(This->ref);
+    return refCount;
 }
 
 static ULONG WINAPI ISF_ControlPanel_fnRelease(IShellFolder2 * iface)
 {
     ICPanelImpl *This = (ICPanelImpl *)iface;
+    ULONG refCount = InterlockedDecrement(&This->ref);
 
-    TRACE("(%p)->(count=%lu)\n", This, This->ref);
+    TRACE("(%p)->(count=%lu)\n", This, refCount + 1);
 
-    if (!--(This->ref)) {
+    if (!refCount) {
         TRACE("-- destroying IShellFolder(%p)\n", This);
         if (This->pidlRoot)
             SHFree(This->pidlRoot);
         LocalFree((HLOCAL) This);
-        return 0;
     }
-    return This->ref;
+    return refCount;
 }
 
 /**************************************************************************

dlls/shell32/dataobject.c

@@ -124,16 +124,21 @@ static HRESULT WINAPI IEnumFORMATETC_fnQueryInterface(LPENUMFORMATETC iface, REF
 static ULONG WINAPI IEnumFORMATETC_fnAddRef(LPENUMFORMATETC iface)
 {
 	IEnumFORMATETCImpl *This = (IEnumFORMATETCImpl *)iface;
-	TRACE("(%p)->(count=%lu)\n",This, This->ref);
-	return ++(This->ref);
+	ULONG refCount = InterlockedIncrement(&This->ref);
+
+	TRACE("(%p)->(count=%lu)\n", This, refCount - 1);
+
+	return refCount;
 }
 
 static ULONG WINAPI IEnumFORMATETC_fnRelease(LPENUMFORMATETC iface)
 {
 	IEnumFORMATETCImpl *This = (IEnumFORMATETCImpl *)iface;
-	TRACE("(%p)->()\n",This);
+	ULONG refCount = InterlockedDecrement(&This->ref);
 
-	if (!--(This->ref))
+	TRACE("(%p)->(%lu)\n", This, refCount + 1);
+
+	if (!refCount)
 	{
 	  TRACE(" destroying IEnumFORMATETC(%p)\n",This);
 	  if (This->pFmt)
@@ -143,7 +148,7 @@ static ULONG WINAPI IEnumFORMATETC_fnRelease(LPENUMFORMATETC iface)
 	  HeapFree(GetProcessHeap(),0,This);
 	  return 0;
 	}
-	return This->ref;
+	return refCount;
 }
 
 static HRESULT WINAPI IEnumFORMATETC_fnNext(LPENUMFORMATETC iface, ULONG celt, FORMATETC *rgelt, ULONG *pceltFethed)
@@ -291,8 +296,11 @@ static HRESULT WINAPI IDataObject_fnQueryInterface(LPDATAOBJECT iface, REFIID ri
 static ULONG WINAPI IDataObject_fnAddRef(LPDATAOBJECT iface)
 {
 	IDataObjectImpl *This = (IDataObjectImpl *)iface;
-	TRACE("(%p)->(count=%lu)\n",This, This->ref);
-	return ++(This->ref);
+	ULONG refCount = InterlockedIncrement(&This->ref);
+
+	TRACE("(%p)->(count=%lu)\n", This, refCount - 1);
+
+	return refCount;
 }
 
 /**************************************************************************
@@ -301,17 +309,18 @@ static ULONG WINAPI IDataObject_fnAddRef(LPDATAOBJECT iface)
 static ULONG WINAPI IDataObject_fnRelease(LPDATAOBJECT iface)
 {
 	IDataObjectImpl *This = (IDataObjectImpl *)iface;
-	TRACE("(%p)->()\n",This);
+	ULONG refCount = InterlockedDecrement(&This->ref);
 
-	if (!--(This->ref))
+	TRACE("(%p)->(%lu)\n", This, refCount + 1);
+
+	if (!refCount)
 	{
 	  TRACE(" destroying IDataObject(%p)\n",This);
 	  _ILFreeaPidl(This->apidl, This->cidl);
 	  ILFree(This->pidl),
 	  HeapFree(GetProcessHeap(),0,This);
-	  return 0;
 	}
-	return This->ref;
+	return refCount;
 }
 
 /**************************************************************************

dlls/shell32/dragdrophelper.c

@@ -113,24 +113,26 @@ static HRESULT WINAPI IDropTargetHelper_fnQueryInterface (IDropTargetHelper * if
 static ULONG WINAPI IDropTargetHelper_fnAddRef (IDropTargetHelper * iface)
 {
     IDropTargetHelperImpl *This = (IDropTargetHelperImpl *)iface;
+    ULONG refCount = InterlockedIncrement(&This->ref);
 
-    TRACE ("(%p)->(count=%lu)\n", This, This->ref);
+    TRACE ("(%p)->(count=%lu)\n", This, refCount - 1);
 
-    return ++(This->ref);
+    return refCount;
 }
 
 static ULONG WINAPI IDropTargetHelper_fnRelease (IDropTargetHelper * iface)
 {
     IDropTargetHelperImpl *This = (IDropTargetHelperImpl *)iface;
+    ULONG refCount = InterlockedDecrement(&This->ref);
 
-    TRACE ("(%p)->(count=%lu)\n", This, This->ref);
+    TRACE ("(%p)->(count=%lu)\n", This, refCount + 1);
 
-    if (!--(This->ref)) {
+    if (!refCount) {
         TRACE("-- destroying (%p)\n", This);
         LocalFree ((HLOCAL) This);
         return 0;
     }
-    return This->ref;
+    return refCount;
 }
 
 static HRESULT WINAPI IDropTargetHelper_fnDragEnter (

dlls/shell32/enumidlist.c

@@ -240,8 +240,11 @@ static ULONG WINAPI IEnumIDList_fnAddRef(
 	IEnumIDList * iface)
 {
 	IEnumIDListImpl *This = (IEnumIDListImpl *)iface;
-	TRACE("(%p)->(%lu)\n",This,This->ref);
-	return ++(This->ref);
+	ULONG refCount = InterlockedIncrement(&This->ref);
+
+	TRACE("(%p)->(%lu)\n", This, refCount - 1);
+
+	return refCount;
 }
 /******************************************************************************
  * IEnumIDList_fnRelease
@@ -250,16 +253,16 @@ static ULONG WINAPI IEnumIDList_fnRelease(
 	IEnumIDList * iface)
 {
 	IEnumIDListImpl *This = (IEnumIDListImpl *)iface;
+	ULONG refCount = InterlockedDecrement(&This->ref);
 
-	TRACE("(%p)->(%lu)\n",This,This->ref);
+	TRACE("(%p)->(%lu)\n", This, refCount + 1);
 
-	if (!--(This->ref)) {
+	if (!refCount) {
 	  TRACE(" destroying IEnumIDList(%p)\n",This);
 	  DeleteList((IEnumIDList*)This);
 	  HeapFree(GetProcessHeap(),0,This);
-	  return 0;
 	}
-	return This->ref;
+	return refCount;
 }
 
 /**************************************************************************

dlls/shell32/folders.c

@@ -130,10 +130,11 @@ static HRESULT WINAPI IExtractIconW_fnQueryInterface(IExtractIconW *iface, REFII
 static ULONG WINAPI IExtractIconW_fnAddRef(IExtractIconW * iface)
 {
 	IExtractIconWImpl *This = (IExtractIconWImpl *)iface;
+	ULONG refCount = InterlockedIncrement(&This->ref);
 
-	TRACE("(%p)->(count=%lu)\n",This, This->ref );
+	TRACE("(%p)->(count=%lu)\n", This, refCount - 1);
 
-	return ++(This->ref);
+	return refCount;
 }
 /**************************************************************************
 *  IExtractIconW_Release
@@ -141,17 +142,18 @@ static ULONG WINAPI IExtractIconW_fnAddRef(IExtractIconW * iface)
 static ULONG WINAPI IExtractIconW_fnRelease(IExtractIconW * iface)
 {
 	IExtractIconWImpl *This = (IExtractIconWImpl *)iface;
+	ULONG refCount = InterlockedDecrement(&This->ref);
 
-	TRACE("(%p)->()\n",This);
+	TRACE("(%p)->(count=%lu)\n", This, refCount + 1);
 
-	if (!--(This->ref))
+	if (!refCount)
 	{
 	  TRACE(" destroying IExtractIcon(%p)\n",This);
 	  SHFree(This->pidl);
 	  HeapFree(GetProcessHeap(),0,This);
 	  return 0;
 	}
-	return This->ref;
+	return refCount;
 }
 
 static HRESULT getIconLocationForFolder(IExtractIconW *iface, UINT uFlags,

dlls/shell32/memorystream.c

@@ -127,10 +127,11 @@ static HRESULT WINAPI IStream_fnQueryInterface(IStream *iface, REFIID riid, LPVO
 static ULONG WINAPI IStream_fnAddRef(IStream *iface)
 {
 	ISHFileStream *This = (ISHFileStream *)iface;
+	ULONG refCount = InterlockedIncrement(&This->ref);
 
-	TRACE("(%p)->(count=%lu)\n",This, This->ref);
+	TRACE("(%p)->(count=%lu)\n", This, refCount - 1);
 
-	return ++(This->ref);
+	return refCount;
 }
 
 /**************************************************************************
@@ -139,16 +140,17 @@ static ULONG WINAPI IStream_fnAddRef(IStream *iface)
 static ULONG WINAPI IStream_fnRelease(IStream *iface)
 {
 	ISHFileStream *This = (ISHFileStream *)iface;
+	ULONG refCount = InterlockedDecrement(&This->ref);
 
-	TRACE("(%p)->()\n",This);
+	TRACE("(%p)->(count=%lu)\n", This, refCount + 1);
 
-	if (!--(This->ref))
+	if (!refCount)
 	{
 		TRACE(" destroying SHFileStream (%p)\n",This);
 		CloseHandle(This->handle);
 		HeapFree(GetProcessHeap(),0,This);
 	}
-	return This->ref;
+	return refCount;
 }
 
 static HRESULT WINAPI IStream_fnRead (IStream * iface, void* pv, ULONG cb, ULONG* pcbRead)

dlls/shell32/shelllink.c

@@ -974,10 +974,11 @@ static HRESULT WINAPI IShellLinkA_fnQueryInterface( IShellLinkA * iface, REFIID
 static ULONG WINAPI IShellLinkA_fnAddRef(IShellLinkA * iface)
 {
 	IShellLinkImpl *This = (IShellLinkImpl *)iface;
+	ULONG refCount = InterlockedIncrement(&This->ref);
 
-	TRACE("(%p)->(count=%lu)\n",This,This->ref);
+	TRACE("(%p)->(count=%lu)\n", This, refCount - 1);
 
-	return ++(This->ref);
+	return refCount;
 }
 /******************************************************************************
  *	IShellLinkA_Release
@@ -985,11 +986,12 @@ static ULONG WINAPI IShellLinkA_fnAddRef(IShellLinkA * iface)
 static ULONG WINAPI IShellLinkA_fnRelease(IShellLinkA * iface)
 {
     IShellLinkImpl *This = (IShellLinkImpl *)iface;
+    ULONG refCount = InterlockedDecrement(&This->ref);
 
-    TRACE("(%p)->(count=%lu)\n",This,This->ref);
+    TRACE("(%p)->(count=%lu)\n", This, refCount + 1);
 
-    if (--(This->ref))
-        return This->ref;
+    if (refCount)
+        return refCount;
 
     TRACE("-- destroying IShellLink(%p)\n",This);
 

dlls/shell32/shellole.c

@@ -556,9 +556,11 @@ static HRESULT WINAPI IDefClF_fnQueryInterface(
 static ULONG WINAPI IDefClF_fnAddRef(LPCLASSFACTORY iface)
 {
 	IDefClFImpl *This = (IDefClFImpl *)iface;
-	TRACE("(%p)->(count=%lu)\n",This,This->ref);
+	ULONG refCount = InterlockedIncrement(&This->ref);
 
-	return InterlockedIncrement(&This->ref);
+	TRACE("(%p)->(count=%lu)\n", This, refCount - 1);
+
+	return refCount;
 }
 /******************************************************************************
  * IDefClF_fnRelease
@@ -566,9 +568,11 @@ static ULONG WINAPI IDefClF_fnAddRef(LPCLASSFACTORY iface)
 static ULONG WINAPI IDefClF_fnRelease(LPCLASSFACTORY iface)
 {
 	IDefClFImpl *This = (IDefClFImpl *)iface;
-	TRACE("(%p)->(count=%lu)\n",This,This->ref);
+	ULONG refCount = InterlockedDecrement(&This->ref);
+	
+	TRACE("(%p)->(count=%lu)\n", This, refCount + 1);
 
-	if (!InterlockedDecrement(&This->ref))
+	if (!refCount)
 	{
 	  if (This->pcRefDll) InterlockedDecrement(This->pcRefDll);
 
@@ -576,7 +580,7 @@ static ULONG WINAPI IDefClF_fnRelease(LPCLASSFACTORY iface)
 	  HeapFree(GetProcessHeap(),0,This);
 	  return 0;
 	}
-	return This->ref;
+	return refCount;
 }
 /******************************************************************************
  * IDefClF_fnCreateInstance

dlls/shell32/shfldr_desktop.c

@@ -157,19 +157,21 @@ static HRESULT WINAPI ISF_Desktop_fnQueryInterface (IShellFolder2 * iface, REFII
 static ULONG WINAPI ISF_Desktop_fnAddRef (IShellFolder2 * iface)
 {
     IGenericSFImpl *This = (IGenericSFImpl *)iface;
+    ULONG refCount = InterlockedIncrement(&This->ref);
 
-    TRACE ("(%p)->(count=%lu)\n", This, This->ref);
+    TRACE ("(%p)->(count=%lu)\n", This, refCount - 1);
 
-    return ++(This->ref);
+    return refCount;
 }
 
 static ULONG WINAPI ISF_Desktop_fnRelease (IShellFolder2 * iface)
 {
     IGenericSFImpl *This = (IGenericSFImpl *)iface;
+    ULONG refCount = InterlockedDecrement(&This->ref);
 
-    TRACE ("(%p)->(count=%lu)\n", This, This->ref);
+    TRACE ("(%p)->(count=%lu)\n", This, refCount + 1);
 
-    if (!--(This->ref)) {
+    if (!refCount) {
 	TRACE ("-- destroying IShellFolder(%p)\n", This);
 	if (This->pidlRoot)
 	    SHFree (This->pidlRoot);
@@ -178,7 +180,7 @@ static ULONG WINAPI ISF_Desktop_fnRelease (IShellFolder2 * iface)
 	LocalFree ((HLOCAL) This);
         return 0;
     }
-    return This->ref;
+    return refCount;
 }
 
 /**************************************************************************

dlls/shell32/shfldr_fs.c

@@ -173,19 +173,21 @@ static HRESULT WINAPI IUnknown_fnQueryInterface (IUnknown * iface, REFIID riid,
 static ULONG WINAPI IUnknown_fnAddRef (IUnknown * iface)
 {
     IGenericSFImpl *This = (IGenericSFImpl *)iface;
+    ULONG refCount = InterlockedIncrement(&This->ref);
 
-    TRACE ("(%p)->(count=%lu)\n", This, This->ref);
+    TRACE ("(%p)->(count=%lu)\n", This, refCount - 1);
 
-    return ++(This->ref);
+    return refCount;
 }
 
 static ULONG WINAPI IUnknown_fnRelease (IUnknown * iface)
 {
     IGenericSFImpl *This = (IGenericSFImpl *)iface;
+    ULONG refCount = InterlockedDecrement(&This->ref);
 
-    TRACE ("(%p)->(count=%lu)\n", This, This->ref);
+    TRACE ("(%p)->(count=%lu)\n", This, refCount + 1);
 
-    if (!--(This->ref)) {
+    if (!refCount) {
 	TRACE ("-- destroying IShellFolder(%p)\n", This);
 
 	if (This->pidlRoot)
@@ -193,9 +195,8 @@ static ULONG WINAPI IUnknown_fnRelease (IUnknown * iface)
 	if (This->sPathTarget)
 	    SHFree (This->sPathTarget);
 	LocalFree ((HLOCAL) This);
-	return 0;
     }
-    return This->ref;
+    return refCount;
 }
 
 static IUnknownVtbl unkvt =

dlls/shell32/shfldr_mycomp.c

@@ -160,26 +160,27 @@ static HRESULT WINAPI ISF_MyComputer_fnQueryInterface (IShellFolder2 * iface, RE
 static ULONG WINAPI ISF_MyComputer_fnAddRef (IShellFolder2 * iface)
 {
     IGenericSFImpl *This = (IGenericSFImpl *)iface;
+    ULONG refCount = InterlockedIncrement(&This->ref);
 
-    TRACE ("(%p)->(count=%lu)\n", This, This->ref);
+    TRACE ("(%p)->(count=%lu)\n", This, refCount - 1);
 
-    return ++(This->ref);
+    return refCount;
 }
 
 static ULONG WINAPI ISF_MyComputer_fnRelease (IShellFolder2 * iface)
 {
     IGenericSFImpl *This = (IGenericSFImpl *)iface;
+    ULONG refCount = InterlockedDecrement(&This->ref);
 
-    TRACE ("(%p)->(count=%lu)\n", This, This->ref);
+    TRACE ("(%p)->(count=%lu)\n", This, refCount + 1);
 
-    if (!--(This->ref)) {
+    if (!refCount) {
         TRACE ("-- destroying IShellFolder(%p)\n", This);
         if (This->pidlRoot)
             SHFree (This->pidlRoot);
         LocalFree ((HLOCAL) This);
-        return 0;
     }
-    return This->ref;
+    return refCount;
 }
 
 /**************************************************************************

dlls/shell32/shlfsbind.c

@@ -179,22 +179,26 @@ static HRESULT WINAPI IFileSystemBindData_fnQueryInterface(IFileSystemBindData *
 static ULONG WINAPI IFileSystemBindData_fnAddRef(IFileSystemBindData *iface)
 {
 	IFileSystemBindDataImpl *This = (IFileSystemBindDataImpl *)iface;
-	TRACE("(%p)\n", This);
-	return InterlockedIncrement(&This->ref);
+	ULONG refCount = InterlockedIncrement(&This->ref);
+
+	TRACE("(%p)->(count=%li)\n", This, refCount - 1);
+
+	return refCount;
 }
 
 static ULONG WINAPI IFileSystemBindData_fnRelease(IFileSystemBindData *iface)
 {
 	IFileSystemBindDataImpl *This = (IFileSystemBindDataImpl *)iface;
-	TRACE("(%p)\n", This);
+	ULONG refCount = InterlockedDecrement(&This->ref);
+	
+	TRACE("(%p)->(count=%li)\n", This, refCount + 1);
 
-	if (!InterlockedDecrement(&This->ref))
+	if (!refCount)
 	{
 	  TRACE(" destroying ISFBindPidl(%p)\n",This);
 	  HeapFree(GetProcessHeap(), 0, This);
-	  return 0;
 	}
-	return This->ref;
+	return refCount;
 }
 
 static HRESULT WINAPI IFileSystemBindData_fnGetFindData(IFileSystemBindData *iface, WIN32_FIND_DATAW *pfd)

dlls/shell32/shlview.c

@@ -1636,10 +1636,11 @@ static HRESULT WINAPI IShellView_fnQueryInterface(IShellView * iface,REFIID riid
 static ULONG WINAPI IShellView_fnAddRef(IShellView * iface)
 {
 	IShellViewImpl *This = (IShellViewImpl *)iface;
+	ULONG refCount = InterlockedIncrement(&This->ref);
 
-	TRACE("(%p)->(count=%lu)\n",This,This->ref);
+	TRACE("(%p)->(count=%lu)\n", This, refCount - 1);
 
-	return ++(This->ref);
+	return refCount;
 }
 /**********************************************************
 *  IShellView_Release
@@ -1647,10 +1648,11 @@ static ULONG WINAPI IShellView_fnAddRef(IShellView * iface)
 static ULONG WINAPI IShellView_fnRelease(IShellView * iface)
 {
 	IShellViewImpl *This = (IShellViewImpl *)iface;
+	ULONG refCount = InterlockedDecrement(&This->ref);
 
-	TRACE("(%p)->()\n",This);
+	TRACE("(%p)->(count=%li)\n", This, refCount + 1);
 
-	if (!--(This->ref))
+	if (!refCount)
 	{
 	  TRACE(" destroying IShellView(%p)\n",This);
 
@@ -1666,9 +1668,8 @@ static ULONG WINAPI IShellView_fnRelease(IShellView * iface)
 	    SHFree(This->apidl);
 
 	  HeapFree(GetProcessHeap(),0,This);
-	  return 0;
 	}
-	return This->ref;
+	return refCount;
 }
 
 /**********************************************************

dlls/shell32/shv_bg_cmenu.c

@@ -106,10 +106,11 @@ static HRESULT WINAPI ISVBgCm_fnQueryInterface(IContextMenu2 *iface, REFIID riid
 static ULONG WINAPI ISVBgCm_fnAddRef(IContextMenu2 *iface)
 {
 	BgCmImpl *This = (BgCmImpl *)iface;
+	ULONG refCount = InterlockedIncrement(&This->ref);
 
-	TRACE("(%p)->(count=%lu)\n",This, This->ref);
+	TRACE("(%p)->(count=%lu)\n", This, refCount - 1);
 
-	return ++(This->ref);
+	return refCount;
 }
 
 /**************************************************************************
@@ -118,10 +119,11 @@ static ULONG WINAPI ISVBgCm_fnAddRef(IContextMenu2 *iface)
 static ULONG WINAPI ISVBgCm_fnRelease(IContextMenu2 *iface)
 {
 	BgCmImpl *This = (BgCmImpl *)iface;
+	ULONG refCount = InterlockedDecrement(&This->ref);
 
-	TRACE("(%p)->()\n",This);
+	TRACE("(%p)->(count=%li)\n", This, refCount + 1);
 
-	if (!--(This->ref))
+	if (!refCount)
 	{
 	  TRACE(" destroying IContextMenu(%p)\n",This);
 
@@ -129,10 +131,8 @@ static ULONG WINAPI ISVBgCm_fnRelease(IContextMenu2 *iface)
 	    IShellFolder_Release(This->pSFParent);
 
 	  HeapFree(GetProcessHeap(),0,This);
-	  return 0;
 	}
-
-	return This->ref;
+	return refCount;
 }
 
 /**************************************************************************

dlls/shell32/shv_item_cmenu.c

@@ -142,10 +142,11 @@ static HRESULT WINAPI ISvItemCm_fnQueryInterface(IContextMenu2 *iface, REFIID ri
 static ULONG WINAPI ISvItemCm_fnAddRef(IContextMenu2 *iface)
 {
 	ItemCmImpl *This = (ItemCmImpl *)iface;
+	ULONG refCount = InterlockedIncrement(&This->ref);
 
-	TRACE("(%p)->(count=%lu)\n",This, This->ref);
+	TRACE("(%p)->(count=%lu)\n", This, refCount - 1);
 
-	return ++(This->ref);
+	return refCount;
 }
 
 /**************************************************************************
@@ -154,10 +155,11 @@ static ULONG WINAPI ISvItemCm_fnAddRef(IContextMenu2 *iface)
 static ULONG WINAPI ISvItemCm_fnRelease(IContextMenu2 *iface)
 {
 	ItemCmImpl *This = (ItemCmImpl *)iface;
+	ULONG refCount = InterlockedDecrement(&This->ref);
 
-	TRACE("(%p)->()\n",This);
+	TRACE("(%p)->(count=%li)\n", This, refCount + 1);
 
-	if (!--(This->ref))
+	if (!refCount)
 	{
 	  TRACE(" destroying IContextMenu(%p)\n",This);
 
@@ -171,9 +173,8 @@ static ULONG WINAPI ISvItemCm_fnRelease(IContextMenu2 *iface)
 	  _ILFreeaPidl(This->apidl, This->cidl);
 
 	  HeapFree(GetProcessHeap(),0,This);
-	  return 0;
 	}
-	return This->ref;
+	return refCount;
 }
 
 /**************************************************************************