diff --git a/CHANGES b/CHANGES
index 2ddecc94..647c146f 100644
--- a/CHANGES
+++ b/CHANGES
@@ -1,3 +1,12 @@
+2.5.6 2015-08-19
+- Add portable mode
+- Support server reorder
+
+2.5.5 2015-08-17
+- Fix crash when enabling Availability Statistics and some servers can not be resolved
+- Allow multiple instances
+- Other fixes
+
 2.5.4 2015-08-16
 - Hide Privoxy icon
 
diff --git a/shadowsocks-csharp/Util/Util.cs b/shadowsocks-csharp/Util/Util.cs
index 8cbdb31d..1858ee90 100755
--- a/shadowsocks-csharp/Util/Util.cs
+++ b/shadowsocks-csharp/Util/Util.cs
@@ -14,16 +14,17 @@ namespace Shadowsocks.Util
         // return path to store temporary files
         public static string GetTempPath()
         {
-            if (File.Exists(Application.StartupPath + "/shadowsocks_portable_mode.txt"))
+            if (File.Exists(Application.StartupPath + "\\shadowsocks_portable_mode.txt"))
             {
                 try
                 {
-                    Directory.CreateDirectory(Application.StartupPath + "/temp");
+                    Directory.CreateDirectory(Application.StartupPath + "\\temp");
                 } catch (Exception e)
                 {
                     Console.WriteLine(e);
                 }
-                return Application.StartupPath + "/temp";
+                // don't use "/", it will fail when we call explorer /select xxx/temp\xxx.log
+                return Application.StartupPath + "\\temp";
             }
             return Path.GetTempPath();
         }
diff --git a/shadowsocks-csharp/View/LogForm.cs b/shadowsocks-csharp/View/LogForm.cs
index bdb9ad5c..d9255853 100644
--- a/shadowsocks-csharp/View/LogForm.cs
+++ b/shadowsocks-csharp/View/LogForm.cs
@@ -91,7 +91,8 @@ namespace Shadowsocks.View
 
         private void menuItem2_Click(object sender, EventArgs e)
         {
-            string argument = @"/select, " + filename;
+            string argument = "/select, \"" + filename + "\"";
+            Console.WriteLine(argument);
             System.Diagnostics.Process.Start("explorer.exe", argument);
         }