diff --git a/lib/csharp/src/Transport/THttpClient.cs b/lib/csharp/src/Transport/THttpClient.cs
index c875a43..7f04be7 100644
--- a/lib/csharp/src/Transport/THttpClient.cs
+++ b/lib/csharp/src/Transport/THttpClient.cs
@@ -40,10 +40,12 @@
 
 		private IDictionary<String, String> customHeaders = new Dictionary<string, string>();
 
-        private HttpWebRequest connection = null;
+        private HttpWebRequest connection = null;
+#if !SILVERLIGHT
         private IWebProxy proxy = WebRequest.DefaultWebProxy;
-
-		public THttpClient(Uri u)
+#endif
+
+        public THttpClient(Uri u)
 		{
 			uri = u;
             connection = CreateRequest();
@@ -73,6 +75,7 @@
 			}
 		}
 
+#if !SILVERLIGHT
         public IWebProxy Proxy
         {
             set
@@ -80,6 +83,7 @@
                 proxy = value;
             }
         }
+#endif
 
 		public override bool IsOpen
 		{