diff --git a/outfiles/lastline.log b/outfiles/lastline.log
index f9e298e..bcafd58 100644
--- a/outfiles/lastline.log
+++ b/outfiles/lastline.log
@@ -1 +1 @@
-[2019-11-28 18:27:02] Stopped SampleWorker(c# version)
+[2019-12-04 17:04:53] Stopped SampleWorker(c# version)
diff --git a/readme.md b/readme.md
index 66c84f2..c7ed371 100644
--- a/readme.md
+++ b/readme.md
@@ -45,7 +45,7 @@ WorkingDir: worker
 # 输出目录，程序运行过程的输出将会写到这个目录下面，请确保该目录已存在
 OutFileDir: outfiles
 
-# 程序输出的编码，如果不确定，请设为空或 none
+# 程序输出的编码，如果不确定，请设为空
 WorkerEncoding: utf8
 ```
 
diff --git a/src/Main.cs b/src/Main.cs
index e099818..48e1f8f 100644
--- a/src/Main.cs
+++ b/src/Main.cs
@@ -323,7 +323,7 @@ private static string setPassword(string value)
     private static string setDescription(string value)
     {
         description = removeOuterQuote(value.Trim());
-        return null;
+        return checkValid(description);
     }
 
     private static string setDisplayName(string value)
@@ -365,14 +365,14 @@ private static string readConfig()
     private static void showConfig()
     {
         Print($"ServiceName: {serviceName}");
+        Print($"DisplayName: {displayName}");
+        Print($"Description: {description}");
         Print($"Worker: {worker}");
         Print($"Worker's fileName: {fileName}");
         Print($"Worker's arguments: {arguments}");
         Print($"WorkingDir: {workingDir}");
         Print($"OutFileDir: {outFileDir}");
         Print($"WorkerEncoding: {workerEncoding}");
-        Print($"Description: {description}");
-        Print($"DisplayName: {displayName}");
         Print($"Domain: {domain}");
         Print($"User: {user}");
         Print($"Password: {password}");
@@ -426,7 +426,8 @@ public static int Main(string[] args)
                 Print($"Service {name} is already installed!");
                 return 1;
             }
-            var _args = $"create {name} binPath= \"{BinPath}\" start= auto DisplayName= \"{displayName}\"";
+            var _args = $"create {name} binPath= \"{BinPath}\" start= auto "
+                + $"DisplayName= \"{displayName}\"";
             if (user.Length > 0)
             {
                 var obj = (domain.Length > 0) ? $"{domain}\\{user}" : user;
diff --git a/svc.conf b/svc.conf
index 708f6cb..8fa8106 100644
--- a/svc.conf
+++ b/svc.conf
@@ -4,26 +4,23 @@
 
 # Manual: readme.md, readme.eng.md
 
-# required System service name, cannot be the same as an existing service in the system
-ServiceName: An Easy Service
+ServiceName: easy-service
+
+DisplayName: An Easy Service
+
+Description: An example of EasyService
 
-# required Executable program and command line parameters
 Worker: sample-worker.exe
 
-# required
 WorkingDir: worker
-OutFileDir: outfiles
 
-# optional
-Description: An Simple Description
-
-# optional
-DisplayName: An Simple DisplayName
+OutFileDir: outfiles
 
 # encoding of the worker, i.e utf8|cp936|... , leave empty to use system's default encoding
 WorkerEncoding: utf8
 
 # user who you want to run this service, leave empty to use LOCAL-SYSTEM
+# if using normal user, you must grant him the permission of running services at services management center
 Domain:
 User:
 Password:
\ No newline at end of file
diff --git a/svc.exe b/svc.exe
index b4e9331..88c8a6f 100644
Binary files a/svc.exe and b/svc.exe differ