diff --git a/shadowsocks-csharp/PACServer.cs b/shadowsocks-csharp/PACServer.cs
index 9d19f0a4..7013efaf 100755
--- a/shadowsocks-csharp/PACServer.cs
+++ b/shadowsocks-csharp/PACServer.cs
@@ -55,6 +55,10 @@ namespace shadowsocks_csharp
 
                 string pac = Resources.proxy_pac;
 
+                string proxy = "PROXY 127.0.0.1:8123; DIRECT;";
+
+                pac = pac.Replace("__PROXY__", proxy);
+
                 if (bytesRead > 0)
                 {
                     string text = String.Format(@"HTTP/1.1 200 OK
diff --git a/shadowsocks-csharp/proxy.pac.txt b/shadowsocks-csharp/proxy.pac.txt
index 7ccf9bf0..e9a90737 100755
--- a/shadowsocks-csharp/proxy.pac.txt
+++ b/shadowsocks-csharp/proxy.pac.txt
@@ -2477,7 +2477,7 @@ var domains = {
   "1-apple.com.tw": 1
 };
 
-var proxy = "PROXY 127.0.0.1:8123; DIRECT;";
+var proxy = "__PROXY__";
 
 var direct = 'DIRECT;';
 
diff --git a/shadowsocks-csharp/shadowsocks-csharp.csproj b/shadowsocks-csharp/shadowsocks-csharp.csproj
index f9e61f03..26d89e44 100755
--- a/shadowsocks-csharp/shadowsocks-csharp.csproj
+++ b/shadowsocks-csharp/shadowsocks-csharp.csproj
@@ -128,7 +128,6 @@
     <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" />