diff --git a/dlls/dmime/audiopath.c b/dlls/dmime/audiopath.c
index 15c3e46..591fdb2 100644
--- a/dlls/dmime/audiopath.c
+++ b/dlls/dmime/audiopath.c
@@ -54,14 +54,17 @@
 
 ULONG WINAPI IDirectMusicAudioPathImpl_IUnknown_AddRef (LPUNKNOWN iface) {
 	ICOM_THIS_MULTI(IDirectMusicAudioPathImpl, UnknownVtbl, iface);
-	TRACE("(%p): AddRef from %ld\n", This, This->ref);
-	return ++(This->ref);
+        ULONG ref = InterlockedIncrement(&This->ref);
+
+	TRACE("(%p): AddRef from %ld\n", This, ref - 1);
+
+	return ref;
 }
 
 ULONG WINAPI IDirectMusicAudioPathImpl_IUnknown_Release (LPUNKNOWN iface) {
   ICOM_THIS_MULTI(IDirectMusicAudioPathImpl, UnknownVtbl, iface);
-  ULONG ref = --This->ref;
-  TRACE("(%p): ReleaseRef to %ld\n", This, This->ref);
+  ULONG ref = InterlockedDecrement(&This->ref);
+  TRACE("(%p): ReleaseRef to %ld\n", This, ref);
   if (ref == 0) {
     if (This->pDSBuffer) {
       IDirectSoundBuffer8_Release(This->pDSBuffer);
diff --git a/dlls/dmime/dmime_main.c b/dlls/dmime/dmime_main.c
index 7428797..7c3fb3c 100644
--- a/dlls/dmime/dmime_main.c
+++ b/dlls/dmime/dmime_main.c
@@ -40,13 +40,13 @@
 
 static ULONG WINAPI PerformanceCF_AddRef(LPCLASSFACTORY iface) {
 	IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
-	return ++(This->ref);
+	return InterlockedIncrement(&This->ref);
 }
 
 static ULONG WINAPI PerformanceCF_Release(LPCLASSFACTORY iface) {
 	IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
 	/* static class, won't be  freed */
-	return --(This->ref);
+	return InterlockedDecrement(&This->ref);
 }
 
 static HRESULT WINAPI PerformanceCF_CreateInstance(LPCLASSFACTORY iface, LPUNKNOWN pOuter, REFIID riid, LPVOID *ppobj) {
@@ -82,13 +82,13 @@
 
 static ULONG WINAPI SegmentCF_AddRef(LPCLASSFACTORY iface) {
 	IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
-	return ++(This->ref);
+	return InterlockedIncrement(&This->ref);
 }
 
 static ULONG WINAPI SegmentCF_Release(LPCLASSFACTORY iface) {
 	IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
 	/* static class, won't be  freed */
-	return --(This->ref);
+	return InterlockedDecrement(&This->ref);
 }
 
 static HRESULT WINAPI SegmentCF_CreateInstance(LPCLASSFACTORY iface, LPUNKNOWN pOuter, REFIID riid, LPVOID *ppobj) {
@@ -124,13 +124,13 @@
 
 static ULONG WINAPI SegmentStateCF_AddRef(LPCLASSFACTORY iface) {
 	IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
-	return ++(This->ref);
+	return InterlockedIncrement(&This->ref);
 }
 
 static ULONG WINAPI SegmentStateCF_Release(LPCLASSFACTORY iface) {
 	IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
 	/* static class, won't be  freed */
-	return --(This->ref);
+	return InterlockedDecrement(&This->ref);
 }
 
 static HRESULT WINAPI SegmentStateCF_CreateInstance(LPCLASSFACTORY iface, LPUNKNOWN pOuter, REFIID riid, LPVOID *ppobj) {
@@ -166,13 +166,13 @@
 
 static ULONG WINAPI GraphCF_AddRef(LPCLASSFACTORY iface) {
 	IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
-	return ++(This->ref);
+	return InterlockedIncrement(&This->ref);
 }
 
 static ULONG WINAPI GraphCF_Release(LPCLASSFACTORY iface) {
 	IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
 	/* static class, won't be  freed */
-	return --(This->ref);
+	return InterlockedDecrement(&This->ref);
 }
 
 static HRESULT WINAPI GraphCF_CreateInstance(LPCLASSFACTORY iface, LPUNKNOWN pOuter, REFIID riid, LPVOID *ppobj) {
@@ -208,13 +208,13 @@
 
 static ULONG WINAPI TempoTrackCF_AddRef(LPCLASSFACTORY iface) {
 	IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
-	return ++(This->ref);
+	return InterlockedIncrement(&This->ref);
 }
 
 static ULONG WINAPI TempoTrackCF_Release(LPCLASSFACTORY iface) {
 	IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
 	/* static class, won't be  freed */
-	return --(This->ref);
+	return InterlockedDecrement(&This->ref);
 }
 
 static HRESULT WINAPI TempoTrackCF_CreateInstance(LPCLASSFACTORY iface, LPUNKNOWN pOuter, REFIID riid, LPVOID *ppobj) {
@@ -250,13 +250,13 @@
 
 static ULONG WINAPI SeqTrackCF_AddRef(LPCLASSFACTORY iface) {
 	IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
-	return ++(This->ref);
+	return InterlockedIncrement(&This->ref);
 }
 
 static ULONG WINAPI SeqTrackCF_Release(LPCLASSFACTORY iface) {
 	IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
 	/* static class, won't be  freed */
-	return --(This->ref);
+	return InterlockedDecrement(&This->ref);
 }
 
 static HRESULT WINAPI SeqTrackCF_CreateInstance(LPCLASSFACTORY iface, LPUNKNOWN pOuter, REFIID riid, LPVOID *ppobj) {
@@ -292,13 +292,13 @@
 
 static ULONG WINAPI SysExTrackCF_AddRef(LPCLASSFACTORY iface) {
 	IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
-	return ++(This->ref);
+	return InterlockedIncrement(&This->ref);
 }
 
 static ULONG WINAPI SysExTrackCF_Release(LPCLASSFACTORY iface) {
 	IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
 	/* static class, won't be  freed */
-	return --(This->ref);
+	return InterlockedDecrement(&This->ref);
 }
 
 static HRESULT WINAPI SysExTrackCF_CreateInstance(LPCLASSFACTORY iface, LPUNKNOWN pOuter, REFIID riid, LPVOID *ppobj) {
@@ -334,13 +334,13 @@
 
 static ULONG WINAPI TimeSigTrackCF_AddRef(LPCLASSFACTORY iface) {
 	IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
-	return ++(This->ref);
+	return InterlockedIncrement(&This->ref);
 }
 
 static ULONG WINAPI TimeSigTrackCF_Release(LPCLASSFACTORY iface) {
 	IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
 	/* static class, won't be  freed */
-	return --(This->ref);
+	return InterlockedDecrement(&This->ref);
 }
 
 static HRESULT WINAPI TimeSigTrackCF_CreateInstance(LPCLASSFACTORY iface, LPUNKNOWN pOuter, REFIID riid, LPVOID *ppobj) {
@@ -376,13 +376,13 @@
 
 static ULONG WINAPI ParamControlTrackCF_AddRef(LPCLASSFACTORY iface) {
 	IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
-	return ++(This->ref);
+	return InterlockedIncrement(&This->ref);
 }
 
 static ULONG WINAPI ParamControlTrackCF_Release(LPCLASSFACTORY iface) {
 	IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
 	/* static class, won't be  freed */
-	return --(This->ref);
+	return InterlockedDecrement(&This->ref);
 }
 
 static HRESULT WINAPI ParamControlTrackCF_CreateInstance(LPCLASSFACTORY iface, LPUNKNOWN pOuter, REFIID riid, LPVOID *ppobj) {
@@ -418,13 +418,13 @@
 
 static ULONG WINAPI MarkerTrackCF_AddRef(LPCLASSFACTORY iface) {
 	IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
-	return ++(This->ref);
+	return InterlockedIncrement(&This->ref);
 }
 
 static ULONG WINAPI MarkerTrackCF_Release(LPCLASSFACTORY iface) {
 	IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
 	/* static class, won't be  freed */
-	return --(This->ref);
+	return InterlockedDecrement(&This->ref);
 }
 
 static HRESULT WINAPI MarkerTrackCF_CreateInstance(LPCLASSFACTORY iface, LPUNKNOWN pOuter, REFIID riid, LPVOID *ppobj) {
@@ -460,13 +460,13 @@
 
 static ULONG WINAPI LyricsTrackCF_AddRef(LPCLASSFACTORY iface) {
 	IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
-	return ++(This->ref);
+	return InterlockedIncrement(&This->ref);
 }
 
 static ULONG WINAPI LyricsTrackCF_Release(LPCLASSFACTORY iface) {
 	IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
 	/* static class, won't be  freed */
-	return --(This->ref);
+	return InterlockedDecrement(&This->ref);
 }
 
 static HRESULT WINAPI LyricsTrackCF_CreateInstance(LPCLASSFACTORY iface, LPUNKNOWN pOuter, REFIID riid, LPVOID *ppobj) {
@@ -503,13 +503,13 @@
 
 static ULONG WINAPI SegTriggerTrackCF_AddRef(LPCLASSFACTORY iface) {
 	IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
-	return ++(This->ref);
+	return InterlockedIncrement(&This->ref);
 }
 
 static ULONG WINAPI SegTriggerTrackCF_Release(LPCLASSFACTORY iface) {
 	IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
 	/* static class, won't be  freed */
-	return --(This->ref);
+	return InterlockedDecrement(&This->ref);
 }
 
 static HRESULT WINAPI SegTriggerTrackCF_CreateInstance(LPCLASSFACTORY iface, LPUNKNOWN pOuter, REFIID riid, LPVOID *ppobj) {
@@ -545,13 +545,13 @@
 
 static ULONG WINAPI AudioPathCF_AddRef(LPCLASSFACTORY iface) {
 	IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
-	return ++(This->ref);
+	return InterlockedIncrement(&This->ref);
 }
 
 static ULONG WINAPI AudioPathCF_Release(LPCLASSFACTORY iface) {
 	IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
 	/* static class, won't be  freed */
-	return --(This->ref);
+	return InterlockedDecrement(&This->ref);
 }
 
 static HRESULT WINAPI AudioPathCF_CreateInstance(LPCLASSFACTORY iface, LPUNKNOWN pOuter, REFIID riid, LPVOID *ppobj) {
@@ -587,13 +587,13 @@
 
 static ULONG WINAPI WaveTrackCF_AddRef(LPCLASSFACTORY iface) {
 	IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
-	return ++(This->ref);
+	return InterlockedIncrement(&This->ref);
 }
 
 static ULONG WINAPI WaveTrackCF_Release(LPCLASSFACTORY iface) {
 	IClassFactoryImpl *This = (IClassFactoryImpl *)iface;
 	/* static class, won't be  freed */
-	return --(This->ref);
+	return InterlockedDecrement(&This->ref);
 }
 
 static HRESULT WINAPI WaveTrackCF_CreateInstance(LPCLASSFACTORY iface, LPUNKNOWN pOuter, REFIID riid, LPVOID *ppobj) {
diff --git a/dlls/dmime/graph.c b/dlls/dmime/graph.c
index 0aed58d..8b5f748 100644
--- a/dlls/dmime/graph.c
+++ b/dlls/dmime/graph.c
@@ -54,14 +54,17 @@
 
 ULONG WINAPI IDirectMusicGraphImpl_IUnknown_AddRef (LPUNKNOWN iface) {
 	ICOM_THIS_MULTI(IDirectMusicGraphImpl, UnknownVtbl, iface);
-	TRACE("(%p): AddRef from %ld\n", This, This->ref);
-	return ++(This->ref);
+        ULONG ref = InterlockedIncrement(&This->ref);
+
+	TRACE("(%p): AddRef from %ld\n", This, ref - 1);
+
+	return ref;
 }
 
 ULONG WINAPI IDirectMusicGraphImpl_IUnknown_Release (LPUNKNOWN iface) {
 	ICOM_THIS_MULTI(IDirectMusicGraphImpl, UnknownVtbl, iface);
-	ULONG ref = --This->ref;
-	TRACE("(%p): ReleaseRef to %ld\n", This, This->ref);
+	ULONG ref = InterlockedDecrement(&This->ref);
+	TRACE("(%p): ReleaseRef to %ld\n", This, ref);
 	if (ref == 0) {
 		HeapFree(GetProcessHeap(), 0, This);
 	}
diff --git a/dlls/dmime/lyricstrack.c b/dlls/dmime/lyricstrack.c
index 975f005..8e52798 100644
--- a/dlls/dmime/lyricstrack.c
+++ b/dlls/dmime/lyricstrack.c
@@ -51,14 +51,17 @@
 
 ULONG WINAPI IDirectMusicLyricsTrack_IUnknown_AddRef (LPUNKNOWN iface) {
 	ICOM_THIS_MULTI(IDirectMusicLyricsTrack, UnknownVtbl, iface);
-	TRACE("(%p): AddRef from %ld\n", This, This->ref);
-	return ++(This->ref);
+        ULONG ref = InterlockedIncrement(&This->ref);
+
+	TRACE("(%p): AddRef from %ld\n", This, ref - 1);
+
+	return ref;
 }
 
 ULONG WINAPI IDirectMusicLyricsTrack_IUnknown_Release (LPUNKNOWN iface) {
 	ICOM_THIS_MULTI(IDirectMusicLyricsTrack, UnknownVtbl, iface);
-	ULONG ref = --This->ref;
-	TRACE("(%p): ReleaseRef to %ld\n", This, This->ref);
+	ULONG ref = InterlockedDecrement(&This->ref);
+	TRACE("(%p): ReleaseRef to %ld\n", This, ref);
 	if (ref == 0) {
 		HeapFree(GetProcessHeap(), 0, This);
 	}
diff --git a/dlls/dmime/markertrack.c b/dlls/dmime/markertrack.c
index f6ed666..d51ca17 100644
--- a/dlls/dmime/markertrack.c
+++ b/dlls/dmime/markertrack.c
@@ -51,14 +51,17 @@
 
 ULONG WINAPI IDirectMusicMarkerTrack_IUnknown_AddRef (LPUNKNOWN iface) {
 	ICOM_THIS_MULTI(IDirectMusicMarkerTrack, UnknownVtbl, iface);
-	TRACE("(%p): AddRef from %ld\n", This, This->ref);
-	return ++(This->ref);
+        ULONG ref = InterlockedIncrement(&This->ref);
+
+	TRACE("(%p): AddRef from %ld\n", This, ref - 1);
+
+	return ref;
 }
 
 ULONG WINAPI IDirectMusicMarkerTrack_IUnknown_Release (LPUNKNOWN iface) {
 	ICOM_THIS_MULTI(IDirectMusicMarkerTrack, UnknownVtbl, iface);
-	ULONG ref = --This->ref;
-	TRACE("(%p): ReleaseRef to %ld\n", This, This->ref);
+	ULONG ref = InterlockedDecrement(&This->ref);
+	TRACE("(%p): ReleaseRef to %ld\n", This, ref);
 	if (ref == 0) {
 		HeapFree(GetProcessHeap(), 0, This);
 	}
diff --git a/dlls/dmime/paramcontroltrack.c b/dlls/dmime/paramcontroltrack.c
index 3201b28..9563b9a 100644
--- a/dlls/dmime/paramcontroltrack.c
+++ b/dlls/dmime/paramcontroltrack.c
@@ -51,14 +51,17 @@
 
 ULONG WINAPI IDirectMusicParamControlTrack_IUnknown_AddRef (LPUNKNOWN iface) {
 	ICOM_THIS_MULTI(IDirectMusicParamControlTrack, UnknownVtbl, iface);
-	TRACE("(%p): AddRef from %ld\n", This, This->ref);
-	return ++(This->ref);
+        ULONG ref = InterlockedIncrement(&This->ref);
+
+	TRACE("(%p): AddRef from %ld\n", This, ref - 1);
+
+	return ref;
 }
 
 ULONG WINAPI IDirectMusicParamControlTrack_IUnknown_Release (LPUNKNOWN iface) {
 	ICOM_THIS_MULTI(IDirectMusicParamControlTrack, UnknownVtbl, iface);
-	ULONG ref = --This->ref;
-	TRACE("(%p): ReleaseRef to %ld\n", This, This->ref);
+	ULONG ref = InterlockedDecrement(&This->ref);
+	TRACE("(%p): ReleaseRef to %ld\n", This, ref);
 	if (ref == 0) {
 		HeapFree(GetProcessHeap(), 0, This);
 	}
diff --git a/dlls/dmime/patterntrack.c b/dlls/dmime/patterntrack.c
index dc54628..8032999 100644
--- a/dlls/dmime/patterntrack.c
+++ b/dlls/dmime/patterntrack.c
@@ -39,14 +39,17 @@
 
 ULONG WINAPI IDirectMusicPatternTrackImpl_AddRef (LPDIRECTMUSICPATTERNTRACK iface) {
 	IDirectMusicPatternTrackImpl *This = (IDirectMusicPatternTrackImpl *)iface;
-	TRACE("(%p): AddRef from %ld\n", This, This->ref);
-	return ++(This->ref);
+        ULONG ref = InterlockedIncrement(&This->ref);
+
+	TRACE("(%p): AddRef from %ld\n", This, ref - 1);
+
+	return ref;
 }
 
 ULONG WINAPI IDirectMusicPatternTrackImpl_Release (LPDIRECTMUSICPATTERNTRACK iface) {
 	IDirectMusicPatternTrackImpl *This = (IDirectMusicPatternTrackImpl *)iface;
-	ULONG ref = --This->ref;
-	TRACE("(%p): ReleaseRef to %ld\n", This, This->ref);
+	ULONG ref = InterlockedDecrement(&This->ref);
+	TRACE("(%p): ReleaseRef to %ld\n", This, ref);
 	if (ref == 0) {
 		HeapFree(GetProcessHeap(), 0, This);
 	}
diff --git a/dlls/dmime/performance.c b/dlls/dmime/performance.c
index dc89129..95a8406 100644
--- a/dlls/dmime/performance.c
+++ b/dlls/dmime/performance.c
@@ -182,14 +182,17 @@
 
 ULONG WINAPI IDirectMusicPerformance8Impl_AddRef (LPDIRECTMUSICPERFORMANCE8 iface) {
   IDirectMusicPerformance8Impl *This = (IDirectMusicPerformance8Impl *)iface;
-  TRACE("(%p): AddRef from %ld\n", This, This->ref);
-  return ++(This->ref);
+  ULONG ref = InterlockedIncrement(&This->ref);
+
+  TRACE("(%p): AddRef from %ld\n", This, ref - 1);
+
+  return ref;
 }
 
 ULONG WINAPI IDirectMusicPerformance8Impl_Release (LPDIRECTMUSICPERFORMANCE8 iface) {
   IDirectMusicPerformance8Impl *This = (IDirectMusicPerformance8Impl *)iface;
-  ULONG ref = --This->ref;
-  TRACE("(%p): ReleaseRef to %ld\n", This, This->ref);
+  ULONG ref = InterlockedDecrement(&This->ref);
+  TRACE("(%p): ReleaseRef to %ld\n", This, ref);
   if (ref == 0) {
     DeleteCriticalSection(&This->safe);
     HeapFree(GetProcessHeap(), 0, This);
diff --git a/dlls/dmime/segment.c b/dlls/dmime/segment.c
index f96f746..3a3df8e 100644
--- a/dlls/dmime/segment.c
+++ b/dlls/dmime/segment.c
@@ -57,14 +57,17 @@
 
 ULONG WINAPI IDirectMusicSegment8Impl_IUnknown_AddRef (LPUNKNOWN iface) {
 	ICOM_THIS_MULTI(IDirectMusicSegment8Impl, UnknownVtbl, iface);
-	TRACE("(%p): AddRef from %ld\n", This, This->ref);
-	return ++(This->ref);
+        ULONG ref = InterlockedIncrement(&This->ref);
+
+	TRACE("(%p): AddRef from %ld\n", This, ref - 1);
+
+	return ref;
 }
 
 ULONG WINAPI IDirectMusicSegment8Impl_IUnknown_Release (LPUNKNOWN iface) {
 	ICOM_THIS_MULTI(IDirectMusicSegment8Impl, UnknownVtbl, iface);
-	ULONG ref = --This->ref;
-	TRACE("(%p): ReleaseRef to %ld\n", This, This->ref);
+	ULONG ref = InterlockedDecrement(&This->ref);
+	TRACE("(%p): ReleaseRef to %ld\n", This, ref);
 	if (ref == 0) {
 		HeapFree(GetProcessHeap(), 0, This);
 	}
diff --git a/dlls/dmime/segmentstate.c b/dlls/dmime/segmentstate.c
index adc2dfc..39b0527 100644
--- a/dlls/dmime/segmentstate.c
+++ b/dlls/dmime/segmentstate.c
@@ -39,14 +39,17 @@
 
 ULONG WINAPI IDirectMusicSegmentState8Impl_AddRef (LPDIRECTMUSICSEGMENTSTATE8 iface) {
 	IDirectMusicSegmentState8Impl *This = (IDirectMusicSegmentState8Impl *)iface;
-	TRACE("(%p): AddRef from %ld\n", This, This->ref);
-	return ++(This->ref);
+        ULONG ref = InterlockedIncrement(&This->ref);
+
+	TRACE("(%p): AddRef from %ld\n", This, ref - 1);
+
+	return ref;
 }
 
 ULONG WINAPI IDirectMusicSegmentState8Impl_Release (LPDIRECTMUSICSEGMENTSTATE8 iface) {
 	IDirectMusicSegmentState8Impl *This = (IDirectMusicSegmentState8Impl *)iface;
-	ULONG ref = --This->ref;
-	TRACE("(%p): ReleaseRef to %ld\n", This, This->ref);
+	ULONG ref = InterlockedDecrement(&This->ref);
+	TRACE("(%p): ReleaseRef to %ld\n", This, ref);
 	if (ref == 0) {
 		HeapFree(GetProcessHeap(), 0, This);
 	}
diff --git a/dlls/dmime/segtriggertrack.c b/dlls/dmime/segtriggertrack.c
index 3e396e1..ea11831 100644
--- a/dlls/dmime/segtriggertrack.c
+++ b/dlls/dmime/segtriggertrack.c
@@ -52,14 +52,17 @@
 
 ULONG WINAPI IDirectMusicSegTriggerTrack_IUnknown_AddRef (LPUNKNOWN iface) {
 	ICOM_THIS_MULTI(IDirectMusicSegTriggerTrack, UnknownVtbl, iface);
-	TRACE("(%p): AddRef from %ld\n", This, This->ref);
-	return ++(This->ref);
+        ULONG ref = InterlockedIncrement(&This->ref);
+
+	TRACE("(%p): AddRef from %ld\n", This, ref - 1);
+
+	return ref;
 }
 
 ULONG WINAPI IDirectMusicSegTriggerTrack_IUnknown_Release (LPUNKNOWN iface) {
 	ICOM_THIS_MULTI(IDirectMusicSegTriggerTrack, UnknownVtbl, iface);
-	ULONG ref = --This->ref;
-	TRACE("(%p): ReleaseRef to %ld\n", This, This->ref);
+	ULONG ref = InterlockedDecrement(&This->ref);
+	TRACE("(%p): ReleaseRef to %ld\n", This, ref);
 	if (ref == 0) {
 		HeapFree(GetProcessHeap(), 0, This);
 	}
diff --git a/dlls/dmime/seqtrack.c b/dlls/dmime/seqtrack.c
index 6601633..7e22918 100644
--- a/dlls/dmime/seqtrack.c
+++ b/dlls/dmime/seqtrack.c
@@ -51,14 +51,17 @@
 
 ULONG WINAPI IDirectMusicSeqTrack_IUnknown_AddRef (LPUNKNOWN iface) {
 	ICOM_THIS_MULTI(IDirectMusicSeqTrack, UnknownVtbl, iface);
-	TRACE("(%p): AddRef from %ld\n", This, This->ref);
-	return ++(This->ref);
+        ULONG ref = InterlockedIncrement(&This->ref);
+
+	TRACE("(%p): AddRef from %ld\n", This, ref - 1);
+
+	return ref;
 }
 
 ULONG WINAPI IDirectMusicSeqTrack_IUnknown_Release (LPUNKNOWN iface) {
 	ICOM_THIS_MULTI(IDirectMusicSeqTrack, UnknownVtbl, iface);
-	ULONG ref = --This->ref;
-	TRACE("(%p): ReleaseRef to %ld\n", This, This->ref);
+	ULONG ref = InterlockedDecrement(&This->ref);
+	TRACE("(%p): ReleaseRef to %ld\n", This, ref);
 	if (ref == 0) {
 		HeapFree(GetProcessHeap(), 0, This);
 	}
diff --git a/dlls/dmime/sysextrack.c b/dlls/dmime/sysextrack.c
index eb5c6d2..c90fa9e 100644
--- a/dlls/dmime/sysextrack.c
+++ b/dlls/dmime/sysextrack.c
@@ -51,14 +51,17 @@
 
 ULONG WINAPI IDirectMusicSysExTrack_IUnknown_AddRef (LPUNKNOWN iface) {
 	ICOM_THIS_MULTI(IDirectMusicSysExTrack, UnknownVtbl, iface);
-	TRACE("(%p): AddRef from %ld\n", This, This->ref);
-	return ++(This->ref);
+        ULONG ref = InterlockedIncrement(&This->ref);
+
+	TRACE("(%p): AddRef from %ld\n", This, ref - 1);
+
+	return ref;
 }
 
 ULONG WINAPI IDirectMusicSysExTrack_IUnknown_Release (LPUNKNOWN iface) {
 	ICOM_THIS_MULTI(IDirectMusicSysExTrack, UnknownVtbl, iface);
-	ULONG ref = --This->ref;
-	TRACE("(%p): ReleaseRef to %ld\n", This, This->ref);
+	ULONG ref = InterlockedDecrement(&This->ref);
+	TRACE("(%p): ReleaseRef to %ld\n", This, ref);
 	if (ref == 0) {
 		HeapFree(GetProcessHeap(), 0, This);
 	}
diff --git a/dlls/dmime/tempotrack.c b/dlls/dmime/tempotrack.c
index 1e3a07f..3359dbf 100644
--- a/dlls/dmime/tempotrack.c
+++ b/dlls/dmime/tempotrack.c
@@ -52,14 +52,17 @@
 
 ULONG WINAPI IDirectMusicTempoTrack_IUnknown_AddRef (LPUNKNOWN iface) {
   ICOM_THIS_MULTI(IDirectMusicTempoTrack, UnknownVtbl, iface);
-  TRACE("(%p): AddRef from %ld\n", This, This->ref);
-  return ++(This->ref);
+  ULONG ref = InterlockedIncrement(&This->ref);
+
+  TRACE("(%p): AddRef from %ld\n", This, ref - 1);
+
+  return ref;
 }
 
 ULONG WINAPI IDirectMusicTempoTrack_IUnknown_Release (LPUNKNOWN iface) {
   ICOM_THIS_MULTI(IDirectMusicTempoTrack, UnknownVtbl, iface);
-  ULONG ref = --This->ref;
-  TRACE("(%p): ReleaseRef to %ld\n", This, This->ref);
+  ULONG ref = InterlockedDecrement(&This->ref);
+  TRACE("(%p): ReleaseRef to %ld\n", This, ref);
   if (ref == 0) {
     HeapFree(GetProcessHeap(), 0, This);
   }
diff --git a/dlls/dmime/timesigtrack.c b/dlls/dmime/timesigtrack.c
index ea96bca..bb0266d 100644
--- a/dlls/dmime/timesigtrack.c
+++ b/dlls/dmime/timesigtrack.c
@@ -51,14 +51,17 @@
 
 ULONG WINAPI IDirectMusicTimeSigTrack_IUnknown_AddRef (LPUNKNOWN iface) {
 	ICOM_THIS_MULTI(IDirectMusicTimeSigTrack, UnknownVtbl, iface);
-	TRACE("(%p): AddRef from %ld\n", This, This->ref);
-	return ++(This->ref);
+        ULONG ref = InterlockedIncrement(&This->ref);
+
+	TRACE("(%p): AddRef from %ld\n", This, ref - 1);
+
+	return ref;
 }
 
 ULONG WINAPI IDirectMusicTimeSigTrack_IUnknown_Release (LPUNKNOWN iface) {
 	ICOM_THIS_MULTI(IDirectMusicTimeSigTrack, UnknownVtbl, iface);
-	ULONG ref = --This->ref;
-	TRACE("(%p): ReleaseRef to %ld\n", This, This->ref);
+	ULONG ref = InterlockedDecrement(&This->ref);
+	TRACE("(%p): ReleaseRef to %ld\n", This, ref);
 	if (ref == 0) {
 		HeapFree(GetProcessHeap(), 0, This);
 	}
diff --git a/dlls/dmime/tool.c b/dlls/dmime/tool.c
index 8c285ab..8fc4268 100644
--- a/dlls/dmime/tool.c
+++ b/dlls/dmime/tool.c
@@ -38,14 +38,17 @@
 
 ULONG WINAPI IDirectMusicTool8Impl_AddRef (LPDIRECTMUSICTOOL8 iface) {
 	IDirectMusicTool8Impl *This = (IDirectMusicTool8Impl *)iface;
-	TRACE("(%p) : AddRef from %ld\n", This, This->ref);
-	return ++(This->ref);
+        ULONG ref = InterlockedIncrement(&This->ref);
+
+	TRACE("(%p) : AddRef from %ld\n", This, ref - 1);
+
+	return ref;
 }
 
 ULONG WINAPI IDirectMusicTool8Impl_Release (LPDIRECTMUSICTOOL8 iface) {
 	IDirectMusicTool8Impl *This = (IDirectMusicTool8Impl *)iface;
-	ULONG ref = --This->ref;
-	TRACE("(%p) : ReleaseRef to %ld\n", This, This->ref);
+	ULONG ref = InterlockedDecrement(&This->ref);
+	TRACE("(%p) : ReleaseRef to %ld\n", This, ref);
 	if (ref == 0) {
 		HeapFree(GetProcessHeap(), 0, This);
 	}
diff --git a/dlls/dmime/wavetrack.c b/dlls/dmime/wavetrack.c
index f3d67a4..77b141c 100644
--- a/dlls/dmime/wavetrack.c
+++ b/dlls/dmime/wavetrack.c
@@ -51,14 +51,17 @@
 
 ULONG WINAPI IDirectMusicWaveTrack_IUnknown_AddRef (LPUNKNOWN iface) {
 	ICOM_THIS_MULTI(IDirectMusicWaveTrack, UnknownVtbl, iface);
-	TRACE("(%p) : AddRef from %ld\n", This, This->ref);
-	return ++(This->ref);
+        ULONG ref = InterlockedIncrement(&This->ref);
+
+	TRACE("(%p) : AddRef from %ld\n", This, ref - 1);
+
+	return ref;
 }
 
 ULONG WINAPI IDirectMusicWaveTrack_IUnknown_Release (LPUNKNOWN iface) {
 	ICOM_THIS_MULTI(IDirectMusicWaveTrack, UnknownVtbl, iface);
-	ULONG ref = --This->ref;
-	TRACE("(%p) : ReleaseRef to %ld\n", This, This->ref);
+	ULONG ref = InterlockedDecrement(&This->ref);
+	TRACE("(%p) : ReleaseRef to %ld\n", This, ref);
 	if (ref == 0) {
 		HeapFree(GetProcessHeap(), 0, This);
 	}