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diff --git a/Stars45/SoundCard.h b/Stars45/SoundCard.h
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+/*  Starshatter OpenSource Distribution
+    Copyright (c) 1997-2004, Destroyer Studios LLC.
+    All Rights Reserved.
+
+    Redistribution and use in source and binary forms, with or without
+    modification, are permitted provided that the following conditions are met:
+
+    * Redistributions of source code must retain the above copyright notice,
+      this list of conditions and the following disclaimer.
+    * Redistributions in binary form must reproduce the above copyright notice,
+      this list of conditions and the following disclaimer in the documentation
+      and/or other materials provided with the distribution.
+    * Neither the name "Destroyer Studios" nor the names of its contributors
+      may be used to endorse or promote products derived from this software
+      without specific prior written permission.
+
+    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+    AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+    IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+    ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+    LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+    CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+    SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+    INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+    CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+    ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+    POSSIBILITY OF SUCH DAMAGE.
+
+    SUBSYSTEM:    nGenEx.lib
+    FILE:         SoundCard.h
+    AUTHOR:       John DiCamillo
+
+
+    OVERVIEW
+    ========
+    Abstract Audio Output class (hides details of DirectSound)
+*/
+
+#ifndef SoundCard_h
+#define SoundCard_h
+
+#include "Types.h"
+#include "List.h"
+#include "ThreadSync.h"
+
+// +--------------------------------------------------------------------+
+
+class  Sound;
+class  Camera;
+struct Vec3;
+
+// +--------------------------------------------------------------------+
+
+class SoundCard
+{
+public:
+    static const char* TYPENAME() { return "SoundCard"; }
+
+    SoundCard();
+    virtual ~SoundCard();
+
+    enum SoundStatus { SC_UNINITIALIZED,
+        SC_OK,
+        SC_ERROR,
+        SC_BAD_PARAM };
+    SoundStatus    Status() const { return status; }
+
+    // Format of the sound card's primary buffer:
+    virtual bool   GetFormat(LPWAVEFORMATEX format)                { return false; }
+    virtual bool   SetFormat(LPWAVEFORMATEX format)                { return false; }
+    virtual bool   SetFormat(int bits, int channels, int hertz)    { return false; }
+    virtual bool   Pause()                                         { return false; }
+    virtual bool   Resume()                                        { return false; }
+    virtual bool   StopSoundEffects()                              { return false; }
+
+    // Get a blank, writable sound buffer:
+    virtual Sound* CreateSound(DWORD flags, LPWAVEFORMATEX format) { return 0;     }
+
+    // Create a sound resource:
+    virtual Sound* CreateSound(DWORD flags, LPWAVEFORMATEX format,
+    DWORD len, LPBYTE data)             { return 0;     }
+
+    // once per frame:
+    virtual void   Update();
+
+    virtual void   SetListener(const Camera& cam, const Vec3& vel) { }
+    virtual DWORD  UpdateThread();
+    virtual void   AddSound(Sound* s);
+
+protected:
+
+    bool           shutdown;
+    HANDLE         hthread;
+    SoundStatus    status;
+    List<Sound>    sounds;
+    ThreadSync     sync;
+};
+
+#endif SoundCard_h
+