diff --git a/shadowsocks-csharp/RC4.cs b/shadowsocks-csharp/RC4.cs
deleted file mode 100755
index 24620a0..0000000
--- a/shadowsocks-csharp/RC4.cs
+++ /dev/null
@@ -1,70 +0,0 @@
-using System;
-using System.Collections.Generic;
-using System.Text;
-
-namespace shadowsocks_csharp
-{
-    public class RC4
-    {
-        class Context
-        {
-            public int index1 = 0;
-            public int index2 = 0;
-        }
-
-        private Context enc_ctx = new Context();
-        private Context dec_ctx = new Context();
-
-        public void Encrypt(byte[] table, byte[] data, int length)
-        {
-            EncryptOutput(enc_ctx, table, data, length);
-        }
-
-        public void Decrypt(byte[] table, byte[] data, int length)
-        {
-            EncryptOutput(dec_ctx, table, data, length);
-        }
-
-        public byte[] EncryptInitalize(byte[] key)
-        {
-            byte[] s = new byte[256];
-
-            for (int i = 0; i < 256; i++)
-            {
-                s[i] = (byte)i;
-            }
-
-            for (int i = 0, j = 0; i < 256; i++)
-            {
-                j = (j + key[i % key.Length] + s[i]) & 255;
-
-                Swap(s, i, j);
-            }
-
-            return s;
-        }
-
-        private void EncryptOutput(Context ctx, byte[] s, byte[] data, int length)
-        {
-            for (int n = 0; n < length; n++)
-            {
-                byte b = data[n];
-
-                ctx.index1 = (ctx.index1 + 1) & 255;
-                ctx.index2 = (ctx.index2 + s[ctx.index1]) & 255;
-
-                Swap(s, ctx.index1, ctx.index2);
-
-                data[n] = (byte)(b ^ s[(s[ctx.index1] + s[ctx.index2]) & 255]);
-            }
-        }
-
-        private static void Swap(byte[] s, int i, int j)
-        {
-            byte c = s[i];
-
-            s[i] = s[j];
-            s[j] = c;
-        }
-    }
-}
diff --git a/shadowsocks-csharp/shadowsocks-csharp.csproj b/shadowsocks-csharp/shadowsocks-csharp.csproj
index dd3f3d6..a580231 100755
--- a/shadowsocks-csharp/shadowsocks-csharp.csproj
+++ b/shadowsocks-csharp/shadowsocks-csharp.csproj
@@ -88,7 +88,6 @@
     <Compile Include="Encrypt\TableEncryptor.cs" />
     <Compile Include="Encrypt\IEncryptor.cs" />
     <Compile Include="PACServer.cs" />
-    <Compile Include="RC4.cs" />
     <Compile Include="Config.cs" />
     <Compile Include="Form1.cs">
       <SubType>Form</SubType>
@@ -126,6 +125,8 @@
     <Compile Include="simple-json\src\SimpleJson\SimpleJson.cs" />
   </ItemGroup>
   <ItemGroup>
+    <None Include="polipo.exe" />
+    <None Include="config.txt" />
     <Content Include="icon144.ico" />
     <None Include="proxy.pac.txt" />
   </ItemGroup>