diff --git a/Qiniu/Conf/Config.cs b/Qiniu/Conf/Config.cs
index e5892c81..949eb6fc 100644
--- a/Qiniu/Conf/Config.cs
+++ b/Qiniu/Conf/Config.cs
@@ -5,7 +5,7 @@ namespace Qiniu.Conf
 {
     public class Config
     {
-        public static string VERSION = "6.1.4";
+        public static string VERSION = "6.1.5";
 
         public static string USER_AGENT = getUa();
         #region 帐户信息
@@ -26,7 +26,7 @@ public class Config
         /// <summary>
         /// 七牛资源上传服务器地址.
         /// </summary>
-        public static string UP_HOST = "http://upload.qiniu.com";
+        public static string UP_HOST = "http://up.qiniu.com";
         /// <summary>
         /// 七牛资源列表服务器地址.
         /// </summary>
@@ -44,15 +44,36 @@ public class Config
         /// <summary>
         /// 初始化七牛帐户、请求地址等信息，不应在客户端调用。
         /// </summary>
-        public static void Init()
+         public static void Init()
         {
-            USER_AGENT = System.Configuration.ConfigurationManager.AppSettings["USER_AGENT"];
-            ACCESS_KEY = System.Configuration.ConfigurationManager.AppSettings["ACCESS_KEY"];
-            SECRET_KEY = System.Configuration.ConfigurationManager.AppSettings["SECRET_KEY"];
-            RS_HOST = System.Configuration.ConfigurationManager.AppSettings["RS_HOST"];
-            UP_HOST = System.Configuration.ConfigurationManager.AppSettings["UP_HOST"];
-            RSF_HOST = System.Configuration.ConfigurationManager.AppSettings["RSF_HOST"];
-            PREFETCH_HOST = System.Configuration.ConfigurationManager.AppSettings["PREFETCH_HOST"];
+            if (System.Configuration.ConfigurationManager.AppSettings["USER_AGENT"] != null) 
+            {
+                USER_AGENT = System.Configuration.ConfigurationManager.AppSettings["USER_AGENT"];
+            }
+            if (System.Configuration.ConfigurationManager.AppSettings["ACCESS_KEY"] != null)
+            {
+                ACCESS_KEY = System.Configuration.ConfigurationManager.AppSettings["ACCESS_KEY"];   
+            }
+            if (System.Configuration.ConfigurationManager.AppSettings["SECRET_KEY"] != null)
+            {
+                SECRET_KEY = System.Configuration.ConfigurationManager.AppSettings["SECRET_KEY"];  
+            }
+            if (System.Configuration.ConfigurationManager.AppSettings["RS_HOST"] != null)
+            {
+                RS_HOST = System.Configuration.ConfigurationManager.AppSettings["RS_HOST"];  
+            }
+            if (System.Configuration.ConfigurationManager.AppSettings["UP_HOST"] != null)
+            {
+                UP_HOST = System.Configuration.ConfigurationManager.AppSettings["UP_HOST"];   
+            }
+            if (System.Configuration.ConfigurationManager.AppSettings["RSF_HOST"] != null)
+            {
+                RSF_HOST = System.Configuration.ConfigurationManager.AppSettings["RSF_HOST"];  
+            }
+            if (System.Configuration.ConfigurationManager.AppSettings["PREFETCH_HOST"] != null)
+            {
+                PREFETCH_HOST = System.Configuration.ConfigurationManager.AppSettings["PREFETCH_HOST"];
+            }
         }
         private static string getUa()
         {
diff --git a/Qiniu/PFOP/Mkzip.cs b/Qiniu/PFOP/Mkzip.cs
new file mode 100644
index 00000000..71a3be4f
--- /dev/null
+++ b/Qiniu/PFOP/Mkzip.cs
@@ -0,0 +1,69 @@
+using Qiniu.Auth;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using Qiniu.RS;
+using Qiniu.RPC;
+using Qiniu.Conf;
+using Qiniu.Util;
+using Newtonsoft.Json;
+
+namespace Qiniu.PFOP
+{
+    public class Mkzip
+    {
+
+        /// <summary>
+        /// 多文件压缩存储为用户提供了批量文件的压缩存储功能
+        /// POST /pfop/ HTTP/1.1
+        /// Host: api.qiniu.com  
+        /// Content-Type: application/x-www-form-urlencoded  
+        /// Authorization: <AccessToken>  
+        /// bucket = <bucket>
+        /// mkzip/<mode>
+        /// /url/<Base64EncodedURL>
+        /// /alias/<Base64EncodedAlias>
+        /// /url/<Base64EncodedURL>
+        /// ...  
+        /// </summary>
+        public String doMkzip(String bucket, String existKey, String newFileName, String[] urls, string pipeline)
+        {
+            if (bucket == null || string.IsNullOrEmpty(existKey) || string.IsNullOrEmpty(newFileName) || urls.Length < 0 || pipeline == null)
+            {
+                throw new Exception("params error");
+            }
+            String entryURI = bucket + ":" + newFileName;
+            String urlString = "";
+            for (int i = 0; i < urls.Length; i++)
+            {
+                String urlEntry = "/url/" + Qiniu.Util.Base64URLSafe.ToBase64URLSafe(urls[i]);
+                urlString += urlEntry;
+            }
+            String fop = System.Web.HttpUtility.UrlEncode("mkzip/1" + urlString + "|saveas/" + Qiniu.Util.Base64URLSafe.ToBase64URLSafe(entryURI));
+
+            string body = string.Format("bucket={0}&key={1}&fops={2}&pipeline={3}", bucket, existKey, fop, pipeline);
+
+            System.Text.Encoding curEncoding = System.Text.Encoding.UTF8;
+
+            QiniuAuthClient authClient = new QiniuAuthClient();
+            CallRet ret = authClient.CallWithBinary(Config.API_HOST + "/pfop/", "application/x-www-form-urlencoded", StreamEx.ToStream(body), body.Length);
+            if (ret.OK)
+            {
+                try
+                {
+                    PersistentId pid = JsonConvert.DeserializeObject<PersistentId>(ret.Response);
+                    return pid.persistentId;
+                }
+                catch (Exception e)
+                {
+                    throw e;
+                }
+            }
+            else
+            {
+                throw new Exception(ret.Response);
+            }
+        }
+    }
+}
diff --git a/Qiniu/RS/RSClient.cs b/Qiniu/RS/RSClient.cs
index 4d3a1a04..a2d2048b 100644
--- a/Qiniu/RS/RSClient.cs
+++ b/Qiniu/RS/RSClient.cs
@@ -29,19 +29,23 @@ public enum FileHandle
 		/// <summary>
 		/// 删除delete
 		/// </summary>
-		DELETE
+		DELETE,
+		/// <summary>
+		/// 抓取资源fetch
+		/// </summary>
+		FETCH
 	}
 
 	/// <summary>
-	/// 资源存储客户端，提供对文件的查看（stat），移动(move)，复制（copy）,删除（delete）操作
+	/// 资源存储客户端，提供对文件的查看（stat），移动(move)，复制（copy）,删除（delete）, 抓取资源（fetch） 操作
 	/// 以及与这些操作对应的批量操作
 	/// </summary>
-	public class RSClient :QiniuAuthClient
+	public class RSClient : QiniuAuthClient
 	{
-		private static string[] OPS = new string[] { "stat", "move", "copy", "delete" };
+		private static string[] OPS = new string[] { "stat", "move", "copy", "delete", "fetch" };
 
-		public RSClient (Mac mac=null)
-            : base(mac)
+		public RSClient(Mac mac = null)
+			: base(mac)
 		{
 		}
 
@@ -73,6 +77,16 @@ private CallRet op2 (FileHandle op, EntryPathPair pair)
 			                            OPS [(int)op],
 			                            Base64URLSafe.Encode (pair.URISrc),
 			                            Base64URLSafe.Encode (pair.URIDest));
+			return Call(url);
+		}
+
+		private CallRet opFetch(FileHandle op, string fromUrl, EntryPath entryPath)
+		{
+			string url = string.Format("{0}/{1}/{2}/to/{3}",
+										Config.RS_HOST,
+										OPS[(int)op],
+										Base64URLSafe.Encode(fromUrl),
+										Base64URLSafe.Encode(entryPath.URI));
 			return Call (url);
 		}
 
@@ -125,6 +139,17 @@ public CallRet Copy (EntryPathPair pathPair)
 			return op2 (FileHandle.COPY, pathPair);
 		}
 
+		/// <summary>
+		/// 抓取资源
+		/// </summary>
+		/// <param name="fromUrl">需要抓取的文件URL</param>
+		/// <param name="entryPath">目标entryPath</param>
+		/// <returns>见<see cref="CallRet">CallRet</see></returns>
+		public CallRet Fetch(string fromUrl, EntryPath entryPath)
+		{
+			return opFetch(FileHandle.FETCH, fromUrl, entryPath);
+		}
+
 		/// <summary>
 		/// 获取一元批操作http request Body
 		/// </summary>
@@ -168,11 +193,11 @@ OPS [(int)op],
 			                              Base64URLSafe.Encode (keys [keys.Length - 1].URISrc),
 			                              Base64URLSafe.Encode (keys [keys.Length - 1].URIDest));
 			return sb.Append (litem).ToString ();
-		}
-
-        private CallRet batch(string requestBody)
-        {
-            return CallWithBinary(Conf.Config.RS_HOST + "/batch", "application/x-www-form-urlencoded", StreamEx.ToStream(requestBody), requestBody.Length);
+		}
+
+        private CallRet batch(string requestBody)
+        {
+            return CallWithBinary(Conf.Config.RS_HOST + "/batch", "application/x-www-form-urlencoded", StreamEx.ToStream(requestBody), requestBody.Length);
         }	
 
 		/// <summary>