diff --git a/BinaryObjectScanner/OldDotNet.cs b/BinaryObjectScanner/OldDotNet.cs
deleted file mode 100644
index 146332a9..00000000
--- a/BinaryObjectScanner/OldDotNet.cs
+++ /dev/null
@@ -1,50 +0,0 @@
-#if NET20 || NET35
-
-using System;
-using System.IO;
-
-namespace BinaryObjectScanner
-{
-    /// <summary>
-    /// Derived from the mscorlib code from .NET Framework 4.0
-    /// </summary>
-    internal static class OldDotNet
-    {
-        public static void CopyTo(this Stream source, Stream destination)
-        {
-            if (destination == null)
-            {
-                throw new ArgumentNullException("destination");
-            }
-
-            if (!source.CanRead && !source.CanWrite)
-            {
-                throw new ObjectDisposedException(null);
-            }
-
-            if (!destination.CanRead && !destination.CanWrite)
-            {
-                throw new ObjectDisposedException("destination");
-            }
-
-            if (!source.CanRead)
-            {
-                throw new NotSupportedException();
-            }
-
-            if (!destination.CanWrite)
-            {
-                throw new NotSupportedException();
-            }
-
-            byte[] array = new byte[81920];
-            int count;
-            while ((count = source.Read(array, 0, array.Length)) != 0)
-            {
-                destination.Write(array, 0, count);
-            }
-        }
-    }
-}
-
-#endif