diff --git a/WebWeiXinToGZH/WebWeiXinToGZH.csproj b/WebWeiXinToGZH/WebWeiXinToGZH.csproj
index f821b105..a61ab0ab 100644
--- a/WebWeiXinToGZH/WebWeiXinToGZH.csproj
+++ b/WebWeiXinToGZH/WebWeiXinToGZH.csproj
@@ -92,9 +92,9 @@
       <Project>{1b74d69a-530f-4275-845b-8ca6d1463bdd}</Project>
       <Name>DigitalPlatform.LibraryRestClient</Name>
     </ProjectReference>
-    <ProjectReference Include="..\dp2Command.Server\dp2Command.Server.csproj">
+    <ProjectReference Include="..\dp2Command.Server\dp2Command.Service.csproj">
       <Project>{a77b8a4a-3ae8-4bd7-b09a-bf8d92fe802d}</Project>
-      <Name>dp2Command.Server</Name>
+      <Name>dp2Command.Service</Name>
     </ProjectReference>
   </ItemGroup>
   <PropertyGroup>
diff --git a/WebWeiXinToGZH/WeiXinApi.aspx.cs b/WebWeiXinToGZH/WeiXinApi.aspx.cs
index 9980e1cf..291bf7d1 100644
--- a/WebWeiXinToGZH/WeiXinApi.aspx.cs
+++ b/WebWeiXinToGZH/WeiXinApi.aspx.cs
@@ -1,5 +1,4 @@
 using dp2weixin;
-using dp2Command.Server;
 using System;
 using System.Collections.Generic;
 using System.Linq;
diff --git a/dp2-v3.sln b/dp2-v3.sln
index 6e71166c..48c02d2c 100644
--- a/dp2-v3.sln
+++ b/dp2-v3.sln
@@ -27,7 +27,7 @@ Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "DigitalPlatform.IO", "Digit
 EndProject
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "DigitalPlatform.LibraryRestClient", "DigitalPlatform.LibraryRestClient\DigitalPlatform.LibraryRestClient.csproj", "{1B74D69A-530F-4275-845B-8CA6D1463BDD}"
 EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "dp2Command.Server", "dp2Command.Server\dp2Command.Server.csproj", "{A77B8A4A-3AE8-4BD7-B09A-BF8D92FE802D}"
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "dp2Command.Service", "dp2Command.Server\dp2Command.Service.csproj", "{A77B8A4A-3AE8-4BD7-B09A-BF8D92FE802D}"
 EndProject
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "dp2CommandConsole", "dp2CommandConsole\dp2CommandConsole.csproj", "{AA0ADD05-854B-43F9-8C57-9A8768C7A564}"
 EndProject
diff --git a/dp2Command.Server/Command/BaseCommand.cs b/dp2Command.Server/Command/BaseCommand.cs
index 064ccd24..8e7851c6 100644
--- a/dp2Command.Server/Command/BaseCommand.cs
+++ b/dp2Command.Server/Command/BaseCommand.cs
@@ -4,7 +4,7 @@
 using System.Text;
 using System.Threading.Tasks;
 
-namespace dp2Command.Server
+namespace dp2Command.Service
 {
     public class BaseCommand
     {
diff --git a/dp2Command.Server/Command/BindingCommand.cs b/dp2Command.Server/Command/BindingCommand.cs
index e5fe2279..d9d8a096 100644
--- a/dp2Command.Server/Command/BindingCommand.cs
+++ b/dp2Command.Server/Command/BindingCommand.cs
@@ -4,7 +4,7 @@
 using System.Text;
 using System.Threading.Tasks;
 
-namespace dp2Command.Server.Command
+namespace dp2Command.Service
 {
     public class BindingCommand:BaseCommand
     {
diff --git a/dp2Command.Server/Command/CommandContainer.cs b/dp2Command.Server/Command/CommandContainer.cs
index 0210e20d..bf46a19b 100644
--- a/dp2Command.Server/Command/CommandContainer.cs
+++ b/dp2Command.Server/Command/CommandContainer.cs
@@ -1,11 +1,10 @@
-using dp2Command.Server.Command;
-using System;
+using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Text;
 using System.Threading.Tasks;
 
-namespace dp2Command.Server
+namespace dp2Command.Service
 {
     public class CommandContainer
     {
diff --git a/dp2Command.Server/Command/SearchCommand.cs b/dp2Command.Server/Command/SearchCommand.cs
index 24ec4624..fbe7b355 100644
--- a/dp2Command.Server/Command/SearchCommand.cs
+++ b/dp2Command.Server/Command/SearchCommand.cs
@@ -4,7 +4,7 @@
 using System.Text;
 using System.Threading.Tasks;
 
-namespace dp2Command.Server
+namespace dp2Command.Service
 {
     public class SearchCommand:BaseCommand
     {
diff --git a/dp2Command.Server/Command/dp2CommandUtility.cs b/dp2Command.Server/Command/dp2CommandUtility.cs
index 2e3eb3fc..73b8cc91 100644
--- a/dp2Command.Server/Command/dp2CommandUtility.cs
+++ b/dp2Command.Server/Command/dp2CommandUtility.cs
@@ -3,7 +3,7 @@
 using System.Linq;
 using System.Web;
 
-namespace dp2Command.Server
+namespace dp2Command.Service
 {
     public class dp2CommandUtility
     {
diff --git a/dp2Command.Server/dp2Command.Server.csproj b/dp2Command.Server/dp2Command.Service.csproj
similarity index 100%
rename from dp2Command.Server/dp2Command.Server.csproj
rename to dp2Command.Server/dp2Command.Service.csproj
diff --git a/dp2Command.Server/dp2CommandService.cs b/dp2Command.Server/dp2CommandService.cs
index 46c3d232..cdcc268e 100644
--- a/dp2Command.Server/dp2CommandService.cs
+++ b/dp2Command.Server/dp2CommandService.cs
@@ -13,7 +13,7 @@
 using System.Threading.Tasks;
 using System.Xml;
 
-namespace dp2Command.Server
+namespace dp2Command.Service
 {
     public class dp2CommandService
     {
diff --git a/dp2CommandConsole/Instance.cs b/dp2CommandConsole/Instance.cs
index b7ddeba6..d7993fec 100644
--- a/dp2CommandConsole/Instance.cs
+++ b/dp2CommandConsole/Instance.cs
@@ -7,8 +7,7 @@
 using DigitalPlatform.Text;
 using System.Net;
 using DigitalPlatform.IO;
-using dp2Command.Server;
-using dp2Command.Server.Command;
+using dp2Command.Service;
 using DigitalPlatform.LibraryRestClient;
 using System.Xml;
 using DigitalPlatform.Xml;
diff --git a/dp2CommandConsole/dp2CommandConsole.csproj b/dp2CommandConsole/dp2CommandConsole.csproj
index 6732cd07..5c398470 100644
--- a/dp2CommandConsole/dp2CommandConsole.csproj
+++ b/dp2CommandConsole/dp2CommandConsole.csproj
@@ -65,9 +65,9 @@
       <Project>{e6489e89-1349-4ee7-a00b-ac96b9912587}</Project>
       <Name>DigitalPlatform.Xml</Name>
     </ProjectReference>
-    <ProjectReference Include="..\dp2Command.Server\dp2Command.Server.csproj">
+    <ProjectReference Include="..\dp2Command.Server\dp2Command.Service.csproj">
       <Project>{a77b8a4a-3ae8-4bd7-b09a-bf8d92fe802d}</Project>
-      <Name>dp2Command.Server</Name>
+      <Name>dp2Command.Service</Name>
     </ProjectReference>
   </ItemGroup>
   <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
diff --git a/dp2weixin.service/dp2MessageHandler/dp2MessageContext.cs b/dp2weixin.service/dp2MessageHandler/dp2MessageContext.cs
index afe6c19f..f8903a02 100644
--- a/dp2weixin.service/dp2MessageHandler/dp2MessageContext.cs
+++ b/dp2weixin.service/dp2MessageHandler/dp2MessageContext.cs
@@ -15,7 +15,7 @@
 using System.Runtime.Remoting.Messaging;
 using System.Text;
 using Senparc.Weixin.MP.Entities;
-using dp2Command.Server;
+using dp2Command.Service;
 
 namespace dp2weixin
 {
diff --git a/dp2weixin.service/dp2MessageHandler/dp2MessageHandler.cs b/dp2weixin.service/dp2MessageHandler/dp2MessageHandler.cs
index 264de26d..06d170a0 100644
--- a/dp2weixin.service/dp2MessageHandler/dp2MessageHandler.cs
+++ b/dp2weixin.service/dp2MessageHandler/dp2MessageHandler.cs
@@ -16,9 +16,9 @@
 using System.Diagnostics;
 using DigitalPlatform;
 using DigitalPlatform.Text;
-using dp2Command.Server;
-using dp2Command.Server.Command;
+using dp2Command.Service;
 using DigitalPlatform.LibraryRestClient;
+using dp2Command.Service;
 
 namespace dp2weixin
 {
diff --git a/dp2weixin.service/dp2MessageHandler/dp2MessageHandler_Events.cs b/dp2weixin.service/dp2MessageHandler/dp2MessageHandler_Events.cs
index 76823282..4333528e 100644
--- a/dp2weixin.service/dp2MessageHandler/dp2MessageHandler_Events.cs
+++ b/dp2weixin.service/dp2MessageHandler/dp2MessageHandler_Events.cs
@@ -7,7 +7,7 @@
 using Senparc.Weixin.MP.Helpers;
 using Senparc.Weixin.MP.MessageHandlers;
 using Senparc.Weixin.Context;
-using dp2Command.Server;
+using dp2Command.Service;
 namespace dp2weixin
 {
     /// <summary>
diff --git a/dp2weixin/Global.asax.cs b/dp2weixin/Global.asax.cs
index 34ae0562..7c360888 100644
--- a/dp2weixin/Global.asax.cs
+++ b/dp2weixin/Global.asax.cs
@@ -7,7 +7,7 @@
 //using dp2weixin.dp2RestfulApi;
 using System.Web.Configuration;
 using DigitalPlatform.IO;
-using dp2Command.Server;
+using dp2Command.Service;
 
 namespace dp2weixin
 {
diff --git a/dp2weixin/Index.aspx.cs b/dp2weixin/Index.aspx.cs
index aca79436..1abc15d9 100644
--- a/dp2weixin/Index.aspx.cs
+++ b/dp2weixin/Index.aspx.cs
@@ -8,7 +8,7 @@
 using Senparc.Weixin.MP;
 using Senparc.Weixin.MP.Entities.Request;
 using DigitalPlatform.LibraryRestClient;
-using dp2Command.Server;
+using dp2Command.Service;
 namespace dp2weixin
 {
     public partial class Index : System.Web.UI.Page
diff --git a/dp2weixin/dp2weixin.csproj b/dp2weixin/dp2weixin.csproj
index 314b173b..5faf7aae 100644
--- a/dp2weixin/dp2weixin.csproj
+++ b/dp2weixin/dp2weixin.csproj
@@ -119,9 +119,9 @@
       <Project>{e6489e89-1349-4ee7-a00b-ac96b9912587}</Project>
       <Name>DigitalPlatform.Xml</Name>
     </ProjectReference>
-    <ProjectReference Include="..\dp2Command.Server\dp2Command.Server.csproj">
+    <ProjectReference Include="..\dp2Command.Server\dp2Command.Service.csproj">
       <Project>{a77b8a4a-3ae8-4bd7-b09a-bf8d92fe802d}</Project>
-      <Name>dp2Command.Server</Name>
+      <Name>dp2Command.Service</Name>
     </ProjectReference>
     <ProjectReference Include="..\dp2weixin.service\dp2weixin.service.csproj">
       <Project>{8085b933-f69e-4a89-97eb-0a61d115c69f}</Project>
diff --git a/dp2weixinP2P/Controllers/WeixinController.cs b/dp2weixinP2P/Controllers/WeixinController.cs
index 4efb43ca..12dbdfa0 100644
--- a/dp2weixinP2P/Controllers/WeixinController.cs
+++ b/dp2weixinP2P/Controllers/WeixinController.cs
@@ -30,7 +30,7 @@
 using Senparc.Weixin.MP.MvcExtension;
 using Senparc.Weixin.MP;
 using dp2weixin;
-using dp2Command.Server;
+using dp2Command.Service;
 
 namespace dp2weixinP2P.Controllers
 {
diff --git a/dp2weixinP2P/Global.asax.cs b/dp2weixinP2P/Global.asax.cs
index 5b79d17f..966e5cfd 100644
--- a/dp2weixinP2P/Global.asax.cs
+++ b/dp2weixinP2P/Global.asax.cs
@@ -8,7 +8,7 @@
 using System.Web.SessionState;
 using System.Web.Http;
 using System.Web.Configuration;
-using dp2Command.Server;
+using dp2Command.Service;
 using DigitalPlatform.IO;
 using dp2Command.Service;
 
diff --git a/dp2weixinP2P/dp2weixinP2P.csproj b/dp2weixinP2P/dp2weixinP2P.csproj
index caf31131..bf00bd28 100644
--- a/dp2weixinP2P/dp2weixinP2P.csproj
+++ b/dp2weixinP2P/dp2weixinP2P.csproj
@@ -181,9 +181,9 @@
       <Project>{1b74d69a-530f-4275-845b-8ca6d1463bdd}</Project>
       <Name>DigitalPlatform.LibraryRestClient</Name>
     </ProjectReference>
-    <ProjectReference Include="..\dp2Command.Server\dp2Command.Server.csproj">
+    <ProjectReference Include="..\dp2Command.Server\dp2Command.Service.csproj">
       <Project>{a77b8a4a-3ae8-4bd7-b09a-bf8d92fe802d}</Project>
-      <Name>dp2Command.Server</Name>
+      <Name>dp2Command.Service</Name>
     </ProjectReference>
     <ProjectReference Include="..\dp2weixin.service\dp2weixin.service.csproj">
       <Project>{8085b933-f69e-4a89-97eb-0a61d115c69f}</Project>