diff --git a/OpenRa.Game/Support/OpenAlInterop.cs b/OpenRa.Game/Support/OpenAlInterop.cs
deleted file mode 100644
index 146e2c6c7f..0000000000
--- a/OpenRa.Game/Support/OpenAlInterop.cs
+++ /dev/null
@@ -1,96 +0,0 @@
-#region Copyright & License Information
-/*
- * Copyright 2007,2009,2010 Chris Forbes, Robert Pepperell, Matthew Bowra-Dean, Paul Chote, Alli Witheford.
- * This file is part of OpenRA.
- * 
- *  OpenRA is free software: you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation, either version 3 of the License, or
- *  (at your option) any later version.
- * 
- *  OpenRA is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- * 
- *  You should have received a copy of the GNU General Public License
- *  along with OpenRA.  If not, see <http://www.gnu.org/licenses/>.
- */
-#endregion
-
-using System;
-using System.Runtime.InteropServices;
-
-namespace OpenRa.Support
-{
-	public static class OpenAlInterop
-	{
-		public const int AL_GAIN = 0x100A;
-
-		public const int AL_FORMAT_MONO8 = 0x1100;
-		public const int AL_FORMAT_MONO16 = 0x1101;
-		public const int AL_FORMAT_STEREO8 = 0x1102;
-		public const int AL_FORMAT_STEREO16 = 0x1103;
-
-		public const int AL_PITCH = 0x1003;
-
-		public const int AL_POSITION = 0x1004;
-		public const int AL_DIRECTION = 0x1005;
-		public const int AL_VELOCITY = 0x1006;
-
-		public const int AL_LOOPING = 0x1007;
-		public const int AL_BUFFER = 0x1009;
-
-		public const int AL_TRUE = 1;
-		public const int AL_FALSE = 0;
-
-		public const int AL_SOURCE_STATE = 0x1010;
-		public const int AL_INITIAL = 0x1011;
-		public const int AL_PLAYING = 0x1012;
-		public const int AL_PAUSED = 0x1013;
-		public const int AL_STOPPED = 0x1014;
-
-		[DllImport("OpenAL32.dll")]
-		public static extern IntPtr alcOpenDevice(IntPtr deviceName);
-
-		[DllImport("OpenAL32.dll")]
-		public static extern IntPtr alcCreateContext(IntPtr device, IntPtr attrList);
-
-		[DllImport("OpenAL32.dll")]
-		public static extern bool alcMakeContextCurrent(IntPtr context);
-
-		[DllImport("OpenAL32.dll")]
-		public static extern void alListenerf(int param, float value);
-
-		[DllImport("OpenAL32.dll")]
-		public static extern void alGenBuffers(int n, out int buffers);
-
-		[DllImport("OpenAL32.dll")]
-		public static extern void alBufferData(int buffer, int format, byte[] data, int size, int freq);
-
-		//[DllImport("OpenAL32.dll")]
-		//public static extern void alGenSources(int n, IntPtr sources);
-
-		[DllImport("OpenAL32.dll")]
-		public static extern void alGenSources(int one, out int source);
-
-		[DllImport("OpenAL32.dll")]
-		public static extern int alGetError();
-
-		[DllImport("OpenAL32.dll")]
-		public static extern void alSourcef(int source, int param, float value);
-
-		[DllImport("OpenAL32.dll")]
-		public static extern void alSource3f(int source, int param, float v1, float v2, float v3);
-
-		[DllImport("OpenAL32.dll")]
-		public static extern void alSourcei(int source, int param, int value);
-
-		[DllImport("OpenAL32.dll")]
-		public static extern void alGetSourcei(int source, int param, out int value);
-
-
-		[DllImport("OpenAL32.dll")]
-		public static extern void alSourcePlay(int source);
-	}
-}