ZuneShell.dll/ZuneDBApi/Microsoft/Zune/QuickMix/QuickMixCallbackProxy.cs

using System.Runtime.CompilerServices;
using System.Runtime.InteropServices;

namespace Microsoft.Zune.QuickMix
{
	[StructLayout(LayoutKind.Sequential, Size = 48)]
	[NativeCppClass]
	internal struct QuickMixCallbackProxy
	{
		private long _003Calignment_0020member_003E;
	}
}