diff --git a/SilentPatchSA/AudioHardwareSA.h b/SilentPatchSA/AudioHardwareSA.h
index c0a0979..93d250b 100644
--- a/SilentPatchSA/AudioHardwareSA.h
+++ b/SilentPatchSA/AudioHardwareSA.h
@@ -62,26 +62,26 @@ public:
 	inline HANDLE	GetFile() const
 		{ return hHandle; }
 
-	virtual HRESULT STDMETHODCALLTYPE QueryInterface(REFIID iid, void ** ppvObject);
-    virtual ULONG STDMETHODCALLTYPE AddRef(void);
-    virtual ULONG STDMETHODCALLTYPE Release(void);
+	virtual HRESULT STDMETHODCALLTYPE QueryInterface(REFIID iid, void ** ppvObject) override = 0;
+    virtual ULONG STDMETHODCALLTYPE AddRef(void) override = 0;
+    virtual ULONG STDMETHODCALLTYPE Release(void) override = 0;
 
     // ISequentialStream Interface
 public:
-    virtual HRESULT STDMETHODCALLTYPE Read(void* pv, ULONG cb, ULONG* pcbRead);
-    virtual HRESULT STDMETHODCALLTYPE Write(void const* pv, ULONG cb, ULONG* pcbWritten);
+    virtual HRESULT STDMETHODCALLTYPE Read(void* pv, ULONG cb, ULONG* pcbRead) override = 0;
+    virtual HRESULT STDMETHODCALLTYPE Write(void const* pv, ULONG cb, ULONG* pcbWritten) override = 0;
 
     // IStream Interface
 public:
-    virtual HRESULT STDMETHODCALLTYPE SetSize(ULARGE_INTEGER);
-    virtual HRESULT STDMETHODCALLTYPE CopyTo(IStream*, ULARGE_INTEGER, ULARGE_INTEGER*, ULARGE_INTEGER*) ;   
-    virtual HRESULT STDMETHODCALLTYPE Commit(DWORD);    
-    virtual HRESULT STDMETHODCALLTYPE Revert(void);    
-    virtual HRESULT STDMETHODCALLTYPE LockRegion(ULARGE_INTEGER, ULARGE_INTEGER, DWORD);   
-    virtual HRESULT STDMETHODCALLTYPE UnlockRegion(ULARGE_INTEGER, ULARGE_INTEGER, DWORD);
-    virtual HRESULT STDMETHODCALLTYPE Clone(IStream **);
-    virtual HRESULT STDMETHODCALLTYPE Seek(LARGE_INTEGER liDistanceToMove, DWORD dwOrigin, ULARGE_INTEGER* lpNewFilePointer);
-    virtual HRESULT STDMETHODCALLTYPE Stat(STATSTG* pStatstg, DWORD grfStatFlag);
+    virtual HRESULT STDMETHODCALLTYPE SetSize(ULARGE_INTEGER) override = 0;
+    virtual HRESULT STDMETHODCALLTYPE CopyTo(IStream*, ULARGE_INTEGER, ULARGE_INTEGER*, ULARGE_INTEGER*) override = 0;
+    virtual HRESULT STDMETHODCALLTYPE Commit(DWORD) override = 0;
+    virtual HRESULT STDMETHODCALLTYPE Revert(void) override = 0;
+    virtual HRESULT STDMETHODCALLTYPE LockRegion(ULARGE_INTEGER, ULARGE_INTEGER, DWORD) override = 0;
+    virtual HRESULT STDMETHODCALLTYPE UnlockRegion(ULARGE_INTEGER, ULARGE_INTEGER, DWORD) override = 0;
+    virtual HRESULT STDMETHODCALLTYPE Clone(IStream **) override = 0;
+    virtual HRESULT STDMETHODCALLTYPE Seek(LARGE_INTEGER liDistanceToMove, DWORD dwOrigin, ULARGE_INTEGER* lpNewFilePointer) override = 0;
+    virtual HRESULT STDMETHODCALLTYPE Stat(STATSTG* pStatstg, DWORD grfStatFlag) override = 0;
 
 public:
 	// Custom methods
@@ -139,26 +139,26 @@ public:
 	inline HANDLE	GetFile() const
 		{ return hHandle; }
 
-	virtual HRESULT STDMETHODCALLTYPE QueryInterface(REFIID iid, void ** ppvObject);
-    virtual ULONG STDMETHODCALLTYPE AddRef(void);
-    virtual ULONG STDMETHODCALLTYPE Release(void);
+	virtual HRESULT STDMETHODCALLTYPE QueryInterface(REFIID iid, void ** ppvObject) override = 0;
+    virtual ULONG STDMETHODCALLTYPE AddRef(void) override = 0;
+    virtual ULONG STDMETHODCALLTYPE Release(void) override = 0;
 
     // ISequentialStream Interface
 public:
-    virtual HRESULT STDMETHODCALLTYPE Read(void* pv, ULONG cb, ULONG* pcbRead);
-    virtual HRESULT STDMETHODCALLTYPE Write(void const* pv, ULONG cb, ULONG* pcbWritten);
+    virtual HRESULT STDMETHODCALLTYPE Read(void* pv, ULONG cb, ULONG* pcbRead) override = 0;
+    virtual HRESULT STDMETHODCALLTYPE Write(void const* pv, ULONG cb, ULONG* pcbWritten) override = 0;
 
     // IStream Interface
 public:
-    virtual HRESULT STDMETHODCALLTYPE SetSize(ULARGE_INTEGER);
-    virtual HRESULT STDMETHODCALLTYPE CopyTo(IStream*, ULARGE_INTEGER, ULARGE_INTEGER*, ULARGE_INTEGER*) ;   
-    virtual HRESULT STDMETHODCALLTYPE Commit(DWORD);    
-    virtual HRESULT STDMETHODCALLTYPE Revert(void);    
-    virtual HRESULT STDMETHODCALLTYPE LockRegion(ULARGE_INTEGER, ULARGE_INTEGER, DWORD);   
-    virtual HRESULT STDMETHODCALLTYPE UnlockRegion(ULARGE_INTEGER, ULARGE_INTEGER, DWORD);
-    virtual HRESULT STDMETHODCALLTYPE Clone(IStream **);
-    virtual HRESULT STDMETHODCALLTYPE Seek(LARGE_INTEGER liDistanceToMove, DWORD dwOrigin, ULARGE_INTEGER* lpNewFilePointer);
-    virtual HRESULT STDMETHODCALLTYPE Stat(STATSTG* pStatstg, DWORD grfStatFlag);
+    virtual HRESULT STDMETHODCALLTYPE SetSize(ULARGE_INTEGER) override = 0;
+    virtual HRESULT STDMETHODCALLTYPE CopyTo(IStream*, ULARGE_INTEGER, ULARGE_INTEGER*, ULARGE_INTEGER*) override = 0; 
+    virtual HRESULT STDMETHODCALLTYPE Commit(DWORD) override = 0;
+    virtual HRESULT STDMETHODCALLTYPE Revert(void) override = 0;
+    virtual HRESULT STDMETHODCALLTYPE LockRegion(ULARGE_INTEGER, ULARGE_INTEGER, DWORD) override = 0;
+    virtual HRESULT STDMETHODCALLTYPE UnlockRegion(ULARGE_INTEGER, ULARGE_INTEGER, DWORD) override = 0;
+    virtual HRESULT STDMETHODCALLTYPE Clone(IStream **) override = 0;
+    virtual HRESULT STDMETHODCALLTYPE Seek(LARGE_INTEGER liDistanceToMove, DWORD dwOrigin, ULARGE_INTEGER* lpNewFilePointer) override = 0;
+    virtual HRESULT STDMETHODCALLTYPE Stat(STATSTG* pStatstg, DWORD grfStatFlag) override = 0;
 
 public:
 	// Custom methods