diff --git a/ErgometerLibrary/FileHandler.cs b/ErgometerLibrary/FileHandler.cs
index f0c1450..90df8f6 100644
--- a/ErgometerLibrary/FileHandler.cs
+++ b/ErgometerLibrary/FileHandler.cs
@@ -22,7 +22,7 @@ namespace ErgometerLibrary
                 using (Stream stream = File.Open(UsersFile, FileMode.Create))
                 {
                     BinaryWriter writer = new BinaryWriter(stream);
-                    writer.Write(0);
+                    writer.Write(1);
                     writer.Write("doctor");
                     writer.Write("password");
                 }
diff --git a/ErgometerLibrary/NetCommand.cs b/ErgometerLibrary/NetCommand.cs
index 34cd778..7617399 100644
--- a/ErgometerLibrary/NetCommand.cs
+++ b/ErgometerLibrary/NetCommand.cs
@@ -8,8 +8,8 @@ namespace ErgometerLibrary
 {
     public class NetCommand
     {
-        public enum CommandType { LOGIN, DATA, CHAT, LOGOUT, SESSION };
-
+        public enum CommandType { LOGIN, DATA, CHAT, LOGOUT, SESSION, RESPONSE };
+        public enum ResponseType { LOGINOK, LOGINWRONG, ERROR, NOTLOGGEDIN }
 
         public double Timestamp { get; set; }
         public int Session { get; set; }
@@ -19,6 +19,7 @@ namespace ErgometerLibrary
         public string Password { get; set; }
         public string ChatMessage { get; set; }
         public Meting Meting { get; set; }
+        public ResponseType Response { get; set; }
 
         public NetCommand(int session)
         {
@@ -27,6 +28,14 @@ namespace ErgometerLibrary
             Timestamp = Helper.Now;
         }
 
+        public NetCommand(ResponseType response, int session)
+        {
+            Type = CommandType.RESPONSE;
+            Session = session;
+            Timestamp = Helper.Now;
+            Response = response;
+        }
+
         public NetCommand(CommandType commandtype, int session)
         {
             Type = commandtype;
@@ -94,11 +103,31 @@ namespace ErgometerLibrary
                     return ParseLogoutRequest(session, args);
                 case 5:
                     return ParseSession(session);
+                case 6:
+                    return ParseResponse(session, args);
                 default:
                     throw new FormatException("Error in NetCommand: " + comType + " is not a valid command type.");
             }
         }
 
+        private static NetCommand ParseResponse(int session, string[] args)
+        {
+            if (args.Length != 1)
+                throw new MissingFieldException("Error in NetCommand: Response is missing arguments");
+
+            switch(args[0])
+            {
+                case "loginok":
+                    return new NetCommand(ResponseType.LOGINOK, session);
+                case "loginwrong":
+                    return new NetCommand(ResponseType.LOGINWRONG, session);
+                case "notloggedin":
+                    return new NetCommand(ResponseType.NOTLOGGEDIN, session);
+                default:
+                    throw new FormatException("Error in NetCommand: Response type not recognised");
+            }
+        }
+
         private static NetCommand ParseSession(int session)
         {
             NetCommand temp = new NetCommand(CommandType.SESSION, session);
@@ -174,6 +203,9 @@ namespace ErgometerLibrary
                 case CommandType.SESSION:
                     command += "5»ses" + Session;
                     break;
+                case CommandType.RESPONSE:
+                    command += "6»ses" + Session + "»" + Response.ToString().ToLower();
+                    break;
 
                 default:
                     throw new FormatException("Error in NetCommand: Cannot find type of command");
diff --git a/ErgometerLibrary/Properties/AssemblyInfo.cs b/ErgometerLibrary/Properties/AssemblyInfo.cs
index f1aff4e..c2e2538 100644
--- a/ErgometerLibrary/Properties/AssemblyInfo.cs
+++ b/ErgometerLibrary/Properties/AssemblyInfo.cs
@@ -32,5 +32,5 @@ using System.Runtime.InteropServices;
 // You can specify all the values or you can default the Build and Revision Numbers 
 // by using the '*' as shown below:
 // [assembly: AssemblyVersion("1.0.*")]
-[assembly: AssemblyVersion("1.0.2.5")]
-[assembly: AssemblyFileVersion("1.0.2.5")]
+[assembly: AssemblyVersion("1.0.2.6")]
+[assembly: AssemblyFileVersion("1.0.2.6")]