diff --git a/DigitalPlatform.MessageServer/ServerInfo.cs b/DigitalPlatform.MessageServer/ServerInfo.cs
index 0dba4ed2..ddd1e97b 100644
--- a/DigitalPlatform.MessageServer/ServerInfo.cs
+++ b/DigitalPlatform.MessageServer/ServerInfo.cs
@@ -79,7 +79,7 @@ public static void CreateCfgFile(string strCfgFileName,
             dom.Save(strCfgFileName);
         }
 
-        public static void Initial(InitialParam param)
+        public static void Initial(InitialParam param, bool bStartThread = true)
         {
             AutoTriggerUrl = param.AutoTriggerUrl;
 
@@ -117,7 +117,8 @@ public static void Initial(InitialParam param)
                 WriteErrorLog("装载配置文件 '" + strCfgFileName + "' 时出现异常: " + ExceptionUtil.GetExceptionText(ex));
             }
 
-            BackThread.BeginThread();
+            if (bStartThread)
+                BackThread.BeginThread();
         }
 
         static string strMongoDbConnStr = "";
@@ -170,9 +171,9 @@ public static void CleanExpiredMessage()
                 // 删除 1 天以前失效的消息
                 MessageDatabase.DeleteExpired(DateTime.Now - new TimeSpan(1, 0, 0, 0)).Wait();
                 // 删除一年前发布的消息
-                MessageDatabase.DeleteByPublishTime(DateTime.Now - new TimeSpan(365,0,0,0)).Wait();
+                MessageDatabase.DeleteByPublishTime(DateTime.Now - new TimeSpan(365, 0, 0, 0)).Wait();
             }
-            catch(Exception ex)
+            catch (Exception ex)
             {
                 WriteErrorLog("清理失效消息时出现异常: " + ExceptionUtil.GetDebugText(ex));
             }
diff --git a/Ionic.Zip.dll b/Ionic.Zip.dll
new file mode 100644
index 00000000..95fa9288
Binary files /dev/null and b/Ionic.Zip.dll differ
diff --git a/ZipUtil.exe b/ZipUtil.exe
new file mode 100644
index 00000000..37417018
Binary files /dev/null and b/ZipUtil.exe differ
diff --git a/dp2MServer/Program.cs b/dp2MServer/Program.cs
index a67d6c3c..52c86ed6 100644
--- a/dp2MServer/Program.cs
+++ b/dp2MServer/Program.cs
@@ -3,6 +3,7 @@
 using System.Threading.Tasks;
 using System.ServiceProcess;
 using System.Diagnostics;
+using System.IO;
 
 using Owin;
 using Microsoft.Owin.Cors;
@@ -12,7 +13,6 @@
 
 using DigitalPlatform.MessageServer;
 using DigitalPlatform.ServiceProcess;
-using System.IO;
 using DigitalPlatform.IO;
 
 namespace dp2MServer
@@ -148,9 +148,11 @@ static void Main(string[] args)
             // 创建超级用户账户
             if (args.Length == 1 && args[0].Equals("createuser"))
             {
-                if (Initial() == false)
+                if (Initial(false) == false)
                     return;
 
+                ServerInfo.InitialMongoDb(true);
+
                 string strUserName = "supervisor";
                 string strPassword = "";
 
@@ -256,7 +258,7 @@ static void CreateSupervisor(string strUserName, string strPassword)
         // return:
         //      true    初始化成功
         //      false   初始化失败
-        static bool Initial()
+        static bool Initial(bool bStartThread = true)
         {
             try
             {
@@ -266,7 +268,7 @@ static bool Initial()
                 InitialParam param = new InitialParam();
                 param.DataDir = DataDir;
                 param.AutoTriggerUrl = AutoTriggerUrl;
-                ServerInfo.Initial(param);
+                ServerInfo.Initial(param, bStartThread);
 
                 return true;
             }