diff --git a/MTApiService/MTApiService.csproj b/MTApiService/MTApiService.csproj
index f27bbab7..9bd012c7 100755
--- a/MTApiService/MTApiService.csproj
+++ b/MTApiService/MTApiService.csproj
@@ -78,7 +78,7 @@
     <Compile Include="MtConnectionProfile.cs" />
     <Compile Include="MtExecutorManager.cs" />
     <Compile Include="MtExpert.cs" />
-    <Compile Include="MtInstrument.cs" />
+    <Compile Include="MtQuote.cs" />
     <Compile Include="MtResponse.cs" />
     <Compile Include="MtServer.cs" />
     <Compile Include="MtCommand.cs" />
diff --git a/MTApiService/MtClient.cs b/MTApiService/MtClient.cs
index 1d063518..81d7009c 100755
--- a/MTApiService/MtClient.cs
+++ b/MTApiService/MtClient.cs
@@ -12,6 +12,7 @@ namespace MTApiService
         private const string ServiceName = "MtApiService";
 
         public delegate void MtQuoteHandler(MtQuote quote);
+        public delegate void MtEventHandler(MtEvent e);
 
         #region Fields
         private static readonly ILog Log = LogManager.GetLogger(typeof(MtClient));
@@ -213,7 +214,7 @@ namespace MTApiService
         }
 
         /// <exception cref="CommunicationException">Thrown when connection failed</exception>
-        public IEnumerable<MtQuote> GetQuotes()
+        public List<MtQuote> GetQuotes()
         {
             Log.Debug("GetQuotes: begin.");
 
@@ -259,7 +260,7 @@ namespace MTApiService
 
             if (quote == null) return;
 
-            QuoteUpdated?.Invoke(quote);
+            QuoteUpdated?.Invoke( quote);
 
             Log.Debug("OnQuoteUpdate: end.");
         }
@@ -293,11 +294,11 @@ namespace MTApiService
         }
 
 
-        public void OnMtEvent(MtEvent mtEvent)
+        public void OnMtEvent(MtEvent e)
         {
-            Log.DebugFormat("OnMtEvent: begin. event = {0}", mtEvent);
+            Log.DebugFormat("OnMtEvent: begin. event = {0}", e);
 
-            MtEventReceived?.Invoke(this, new MtEventArgs(mtEvent));
+            MtEventReceived?.Invoke(e);
 
             Log.Debug("OnMtEvent: end.");
         }
@@ -342,7 +343,7 @@ namespace MTApiService
         public event MtQuoteHandler QuoteUpdated;
         public event EventHandler ServerDisconnected;
         public event EventHandler ServerFailed;
-        public event EventHandler<MtEventArgs> MtEventReceived;
+        public event MtEventHandler MtEventReceived;
         #endregion
     }
 }
diff --git a/MTApiService/MtEvent.cs b/MTApiService/MtEvent.cs
index 80b38b38..594d5fa0 100644
--- a/MTApiService/MtEvent.cs
+++ b/MTApiService/MtEvent.cs
@@ -7,20 +7,17 @@ namespace MTApiService
     public class MtEvent
     {
         [DataMember]
-        public int EventType { get; private set; }
+        public int EventType { get; internal set; }
 
         [DataMember]
-        public string Payload { get; private set; }
+        public string Payload { get; internal set; }
 
-        public MtEvent(int eventType, string payload)
-        {
-            EventType = eventType;
-            Payload = payload;
-        }
+        [DataMember]
+        public int ExpertHandle { get; internal set; }
 
         public override string ToString()
         {
-            return "MtEvent = " + EventType + ", Payload = " + Payload;
+            return $"EventType = {EventType}; Payload = {Payload}; ExpertHandle = {ExpertHandle}";
         }
     }
 
diff --git a/MTApiService/MtExpert.cs b/MTApiService/MtExpert.cs
index 05c1669f..a66dd517 100755
--- a/MTApiService/MtExpert.cs
+++ b/MTApiService/MtExpert.cs
@@ -6,6 +6,7 @@ namespace MTApiService
     public class MtExpert
     {
         public delegate void MtQuoteHandler(MtExpert expert, MtQuote quote);
+        public delegate void MtEventHandler(MtExpert expert, MtEvent e);
 
         #region Private Fields
         private static readonly ILog Log = LogManager.GetLogger(typeof(MtExpert));
@@ -187,7 +188,7 @@ namespace MTApiService
 
         private void FireOnMtEvent(MtEvent mtEvent)
         {
-            OnMtEvent?.Invoke(this, new MtEventArgs(mtEvent));
+            OnMtEvent?.Invoke(this, mtEvent);
         }
         #endregion
 
@@ -195,7 +196,7 @@ namespace MTApiService
         public event EventHandler Deinited;
         public event MtQuoteHandler QuoteChanged;
         public event EventHandler CommandExecuted;
-        public event EventHandler<MtEventArgs> OnMtEvent;
+        public event MtEventHandler OnMtEvent;
         #endregion
     }
 }
diff --git a/MTApiService/MtInstrument.cs b/MTApiService/MtInstrument.cs
deleted file mode 100755
index 0867dda1..00000000
--- a/MTApiService/MtInstrument.cs
+++ /dev/null
@@ -1,29 +0,0 @@
-using System.Runtime.Serialization;
-
-namespace MTApiService
-{
-    [DataContract]
-    public class MtQuote
-    {
-        [DataMember]
-        public string Instrument { get; private set; }
-        
-        [DataMember]
-        public double Bid { get; private set; }
-
-        [DataMember]
-        public double Ask { get; private set; }
-
-        public MtQuote(string instrument, double bid, double ask)
-        {
-            Instrument = instrument;
-            Bid = bid;
-            Ask = ask;
-        }
-
-        public override string ToString()
-        {
-            return "Instrument = " + Instrument + ", Bid = " + Bid + ", Ask = " + Ask;
-        }
-    }
-}
diff --git a/MTApiService/MtQuote.cs b/MTApiService/MtQuote.cs
new file mode 100644
index 00000000..4c707f54
--- /dev/null
+++ b/MTApiService/MtQuote.cs
@@ -0,0 +1,25 @@
+using System.Runtime.Serialization;
+
+namespace MTApiService
+{
+    [DataContract]
+    public class MtQuote
+    {
+        [DataMember]
+        public string Instrument { get; internal set; }
+        
+        [DataMember]
+        public double Bid { get; internal set; }
+
+        [DataMember]
+        public double Ask { get; internal set; }
+
+        [DataMember]
+        public int ExpertHandle { get; internal set; }
+
+        public override string ToString()
+        {
+            return $"Instrument = {Instrument}; Bid = {Bid}; Ask = {Ask}; ExpertHandle = {ExpertHandle}";
+        }
+    }
+}
diff --git a/MTApiService/MtServer.cs b/MTApiService/MtServer.cs
index db003534..e133b741 100755
--- a/MTApiService/MtServer.cs
+++ b/MTApiService/MtServer.cs
@@ -398,11 +398,11 @@ namespace MTApiService
             Log.Debug("expert_QuoteChanged: end.");
         }
 
-        private void Expert_OnMtEvent(object sender, MtEventArgs e)
+        private void Expert_OnMtEvent(MtExpert expert, MtEvent e)
         {
-            Log.DebugFormat("Expert_OnMtEvent: begin. event = {0}", e.Event);
+            Log.DebugFormat("Expert_OnMtEvent: begin. expert = {0}, event = {1}", expert, e);
 
-            _service.OnMtEvent(e.Event);
+            _service.OnMtEvent(e);
 
             Log.Debug("Expert_OnMtEvent: end.");
         }
diff --git a/MTApiService/MtServerInstance.cs b/MTApiService/MtServerInstance.cs
index a448198a..a1e4e882 100755
--- a/MTApiService/MtServerInstance.cs
+++ b/MTApiService/MtServerInstance.cs
@@ -60,7 +60,7 @@ namespace MTApiService
                 }
             }
 
-            var expert = new MtExpert(expertHandle, new MtQuote(symbol, bid, ask), mtHandler);
+            var expert = new MtExpert(expertHandle, new MtQuote { Instrument = symbol, Bid = bid, Ask = ask, ExpertHandle = expertHandle }, mtHandler);
 
             lock (_experts)
             {
@@ -111,7 +111,7 @@ namespace MTApiService
 
             if (expert != null)
             {
-                expert.Quote = new MtQuote(symbol, bid, ask);
+                expert.Quote = new MtQuote { Instrument = symbol, Bid = bid, Ask = ask, ExpertHandle = expertHandle };
             }
             else
             {
@@ -133,7 +133,7 @@ namespace MTApiService
 
             if (expert != null)
             {
-                expert.SendEvent(new MtEvent(eventType, payload));
+                expert.SendEvent(new MtEvent { EventType = eventType, Payload = payload, ExpertHandle = expertHandle });
             }
             else
             {
diff --git a/MTApiService/MtService.cs b/MTApiService/MtService.cs
index ce25dfdf..5dfea69f 100755
--- a/MTApiService/MtService.cs
+++ b/MTApiService/MtService.cs
@@ -66,7 +66,7 @@ namespace MTApiService
 
             if (callback == null)
             {
-                Log.Warn("Connect: end. Callback is not definded.");
+                Log.Warn("Connect: end. Callback is not defined.");
                 return false;
             }
 
@@ -158,7 +158,7 @@ namespace MTApiService
 
         public void QuoteUpdate(MtQuote quote)
         {
-            Log.Debug("QuoteUpdate: begin.");
+            Log.DebugFormat("QuoteUpdate: begin. quote = {0}", quote);
 
             ExecuteCallbackAction(a => a.OnQuoteUpdate(quote));
 
@@ -167,7 +167,7 @@ namespace MTApiService
 
         public void OnQuoteAdded(MtQuote quote)
         {
-            Log.Debug("OnQuoteAdded: begin.");
+            Log.DebugFormat("OnQuoteAdded: begin. quote = {0}", quote);
 
             ExecuteCallbackAction(a => a.OnQuoteAdded(quote));
 
@@ -176,18 +176,18 @@ namespace MTApiService
 
         public void OnQuoteRemoved(MtQuote quote)
         {
-            Log.Debug("OnQuoteRemoved: begin.");
+            Log.DebugFormat("OnQuoteRemoved: begin. quote = {0}", quote);
 
             ExecuteCallbackAction(a => a.OnQuoteRemoved(quote));
 
             Log.Debug("OnQuoteRemoved: end.");
         }
 
-        public void OnMtEvent(MtEvent mtEvent)
+        public void OnMtEvent(MtEvent e)
         {
-            Log.Debug("OnMtEvent: begin.");
+            Log.DebugFormat("OnMtEvent: begin.quote = {0}", e);
 
-            ExecuteCallbackAction(a => a.OnMtEvent(mtEvent));
+            ExecuteCallbackAction(a => a.OnMtEvent(e));
 
             Log.Debug("OnMtEvent: end.");
         }
diff --git a/MTApiService/Properties/AssemblyInfo.cs b/MTApiService/Properties/AssemblyInfo.cs
index 8730db4e..d89d1407 100755
--- a/MTApiService/Properties/AssemblyInfo.cs
+++ b/MTApiService/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("1.0.23.0")]
-[assembly: AssemblyFileVersion("1.0.23.0")]
+[assembly: AssemblyVersion("1.0.24.0")]
+[assembly: AssemblyFileVersion("1.0.24.0")]
diff --git a/MtApi/ExtensionMethods.cs b/MtApi/ExtensionMethods.cs
index f96146b6..9871cb9e 100755
--- a/MtApi/ExtensionMethods.cs
+++ b/MtApi/ExtensionMethods.cs
@@ -33,10 +33,5 @@ namespace MtApi
         }
 
         #endregion
-
-        public static MtQuote Convert(this MTApiService.MtQuote quote)
-        {
-            return (quote != null) ? new MtQuote(quote.Instrument, quote.Bid, quote.Ask) : null;
-        }
     }
 }
diff --git a/MtApi/MtApiClient.cs b/MtApi/MtApiClient.cs
index 06e39417..65c4a8b2 100755
--- a/MtApi/MtApiClient.cs
+++ b/MtApi/MtApiClient.cs
@@ -81,14 +81,15 @@ namespace MtApi
         ///<summary>
         ///Load quotes connected into MetaTrader API.
         ///</summary>
-        public IEnumerable<MtQuote> GetQuotes()
+        public List<MtQuote> GetQuotes()
         {
             IEnumerable<MTApiService.MtQuote> quotes;
             lock (_client)
             {
                 quotes = _client.GetQuotes();
             }
-            return quotes?.Select(q => q.Convert());
+
+            return quotes?.Select(q => new MtQuote(q)).ToList();
         }
         #endregion
 
@@ -1847,10 +1848,12 @@ namespace MtApi
             {
                 if (_isBacktestingMode)
                 {
+                    QuoteUpdate?.Invoke(this, new MtQuoteEventArgs(new MtQuote(quote)));
                     QuoteUpdated?.Invoke(this, quote.Instrument, quote.Bid, quote.Ask);
                 }
                 else
                 {
+                    QuoteUpdate?.FireEventAsync(this, new MtQuoteEventArgs(new MtQuote(quote)));
                     QuoteUpdated.FireEventAsync(this, quote.Instrument, quote.Bid, quote.Ask);
                 }
             }
@@ -1868,23 +1871,23 @@ namespace MtApi
 
         private void _client_QuoteRemoved(MTApiService.MtQuote quote)
         {
-            QuoteRemoved.FireEventAsync(this, new MtQuoteEventArgs(quote.Convert()));
+            QuoteRemoved.FireEventAsync(this, new MtQuoteEventArgs(new MtQuote(quote)));
         }
 
         private void _client_QuoteAdded(MTApiService.MtQuote quote)
         {
-            QuoteAdded.FireEventAsync(this, new MtQuoteEventArgs(quote.Convert()));
+            QuoteAdded.FireEventAsync(this, new MtQuoteEventArgs(new MtQuote(quote)));
         }
 
-        private void _client_MtEventReceived(object sender, MtEventArgs e)
+        private void _client_MtEventReceived(MtEvent e)
         {
-            var eventType = (MtEventTypes) e.Event.EventType;
+            var eventType = (MtEventTypes) e.EventType;
 
             switch(eventType)
             {
                 case MtEventTypes.LastTimeBar:
                     {
-                        FireOnLastTimeBar(JsonConvert.DeserializeObject<MtTimeBar>(e.Event.Payload));
+                        FireOnLastTimeBar(JsonConvert.DeserializeObject<MtTimeBar>(e.Payload));
                     }
                     break;
                 default:
@@ -1907,6 +1910,7 @@ namespace MtApi
         #region Events
 
         public event MtApiQuoteHandler QuoteUpdated;
+        public event EventHandler<MtQuoteEventArgs> QuoteUpdate;
         public event EventHandler<MtQuoteEventArgs> QuoteAdded;
         public event EventHandler<MtQuoteEventArgs> QuoteRemoved;
         public event EventHandler<MtConnectionEventArgs> ConnectionStateChanged;
diff --git a/MtApi/MtQuote.cs b/MtApi/MtQuote.cs
index 34fb0954..0d61c489 100755
--- a/MtApi/MtQuote.cs
+++ b/MtApi/MtQuote.cs
@@ -5,6 +5,7 @@
         public string Instrument { get; private set; }
         public double Bid { get; private set; }
         public double Ask { get; private set; }
+        public int ExpertHandle { get; private set; }
 
         public MtQuote(string instrument, double bid, double ask)
         {
@@ -12,5 +13,13 @@
             Bid = bid;
             Ask = ask;
         }
+
+        internal MtQuote(MTApiService.MtQuote quote)
+        {
+            Instrument = quote.Instrument;
+            Bid = quote.Bid;
+            Ask = quote.Ask;
+            ExpertHandle = quote.ExpertHandle;
+        }
     }
 }
diff --git a/MtApi/MtQuoteEventArgs.cs b/MtApi/MtQuoteEventArgs.cs
index ac64c62a..1f78edaa 100755
--- a/MtApi/MtQuoteEventArgs.cs
+++ b/MtApi/MtQuoteEventArgs.cs
@@ -1,7 +1,4 @@
 using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
 
 namespace MtApi
 {
diff --git a/MtApi/TimeBarArgs.cs b/MtApi/TimeBarArgs.cs
index e8ae32ba..10694b75 100644
--- a/MtApi/TimeBarArgs.cs
+++ b/MtApi/TimeBarArgs.cs
@@ -1,8 +1,4 @@
 using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
 
 namespace MtApi
 {
diff --git a/TestClients/TestApiClientUI/Form1.Designer.cs b/TestClients/TestApiClientUI/Form1.Designer.cs
index f634d873..d54d5ea5 100644
--- a/TestClients/TestApiClientUI/Form1.Designer.cs
+++ b/TestClients/TestApiClientUI/Form1.Designer.cs
@@ -43,7 +43,7 @@
             this.colSymbol = ((System.Windows.Forms.ColumnHeader)(new System.Windows.Forms.ColumnHeader()));
             this.colBid = ((System.Windows.Forms.ColumnHeader)(new System.Windows.Forms.ColumnHeader()));
             this.colAsk = ((System.Windows.Forms.ColumnHeader)(new System.Windows.Forms.ColumnHeader()));
-            this.colFeedCount = ((System.Windows.Forms.ColumnHeader)(new System.Windows.Forms.ColumnHeader()));
+            this.colExpertHandle = ((System.Windows.Forms.ColumnHeader)(new System.Windows.Forms.ColumnHeader()));
             this.listBoxEventLog = new System.Windows.Forms.ListBox();
             this.contextMenuStrip1 = new System.Windows.Forms.ContextMenuStrip(this.components);
             this.tabControl1 = new System.Windows.Forms.TabControl();
@@ -110,6 +110,15 @@
             this.listBoxAccountInfo = new System.Windows.Forms.ListBox();
             this.button4 = new System.Windows.Forms.Button();
             this.tabPage4 = new System.Windows.Forms.TabPage();
+            this.button36 = new System.Windows.Forms.Button();
+            this.comboBox10 = new System.Windows.Forms.ComboBox();
+            this.comboBox9 = new System.Windows.Forms.ComboBox();
+            this.button35 = new System.Windows.Forms.Button();
+            this.button34 = new System.Windows.Forms.Button();
+            this.comboBox8 = new System.Windows.Forms.ComboBox();
+            this.label30 = new System.Windows.Forms.Label();
+            this.button33 = new System.Windows.Forms.Button();
+            this.comboBox7 = new System.Windows.Forms.ComboBox();
             this.comboBox6 = new System.Windows.Forms.ComboBox();
             this.label29 = new System.Windows.Forms.Label();
             this.comboBox5 = new System.Windows.Forms.ComboBox();
@@ -157,15 +166,6 @@
             this.button28 = new System.Windows.Forms.Button();
             this.label28 = new System.Windows.Forms.Label();
             this.textBox1 = new System.Windows.Forms.TextBox();
-            this.comboBox7 = new System.Windows.Forms.ComboBox();
-            this.button33 = new System.Windows.Forms.Button();
-            this.label30 = new System.Windows.Forms.Label();
-            this.comboBox8 = new System.Windows.Forms.ComboBox();
-            this.button34 = new System.Windows.Forms.Button();
-            this.button35 = new System.Windows.Forms.Button();
-            this.comboBox9 = new System.Windows.Forms.ComboBox();
-            this.comboBox10 = new System.Windows.Forms.ComboBox();
-            this.button36 = new System.Windows.Forms.Button();
             this.groupBox1.SuspendLayout();
             this.statusStrip1.SuspendLayout();
             this.groupBox2.SuspendLayout();
@@ -288,7 +288,7 @@
             this.colSymbol,
             this.colBid,
             this.colAsk,
-            this.colFeedCount});
+            this.colExpertHandle});
             this.listViewQuotes.Location = new System.Drawing.Point(6, 19);
             this.listViewQuotes.Name = "listViewQuotes";
             this.listViewQuotes.Size = new System.Drawing.Size(357, 104);
@@ -309,9 +309,10 @@
             // 
             this.colAsk.Text = "Ask";
             // 
-            // colFeedCount
+            // colExpertHandle
             // 
-            this.colFeedCount.Text = "Feeds";
+            this.colExpertHandle.Text = "ExpertHandle";
+            this.colExpertHandle.Width = 80;
             // 
             // listBoxEventLog
             // 
@@ -1071,6 +1072,91 @@
             this.tabPage4.Text = "MarketInfo";
             this.tabPage4.UseVisualStyleBackColor = true;
             // 
+            // button36
+            // 
+            this.button36.Location = new System.Drawing.Point(208, 157);
+            this.button36.Name = "button36";
+            this.button36.Size = new System.Drawing.Size(111, 23);
+            this.button36.TabIndex = 36;
+            this.button36.Text = "TerminalInfoDouble";
+            this.button36.UseVisualStyleBackColor = true;
+            this.button36.Click += new System.EventHandler(this.button36_Click);
+            // 
+            // comboBox10
+            // 
+            this.comboBox10.DropDownStyle = System.Windows.Forms.ComboBoxStyle.DropDownList;
+            this.comboBox10.FormattingEnabled = true;
+            this.comboBox10.Location = new System.Drawing.Point(13, 157);
+            this.comboBox10.Name = "comboBox10";
+            this.comboBox10.Size = new System.Drawing.Size(186, 21);
+            this.comboBox10.TabIndex = 35;
+            // 
+            // comboBox9
+            // 
+            this.comboBox9.DropDownStyle = System.Windows.Forms.ComboBoxStyle.DropDownList;
+            this.comboBox9.FormattingEnabled = true;
+            this.comboBox9.Location = new System.Drawing.Point(13, 130);
+            this.comboBox9.Name = "comboBox9";
+            this.comboBox9.Size = new System.Drawing.Size(186, 21);
+            this.comboBox9.TabIndex = 34;
+            // 
+            // button35
+            // 
+            this.button35.Location = new System.Drawing.Point(208, 128);
+            this.button35.Name = "button35";
+            this.button35.Size = new System.Drawing.Size(111, 23);
+            this.button35.TabIndex = 33;
+            this.button35.Text = "TerminalInfoInteger";
+            this.button35.UseVisualStyleBackColor = true;
+            this.button35.Click += new System.EventHandler(this.button35_Click);
+            // 
+            // button34
+            // 
+            this.button34.Location = new System.Drawing.Point(387, 47);
+            this.button34.Name = "button34";
+            this.button34.Size = new System.Drawing.Size(112, 23);
+            this.button34.TabIndex = 32;
+            this.button34.Text = "SymbolInfoTick";
+            this.button34.UseVisualStyleBackColor = true;
+            this.button34.Click += new System.EventHandler(this.button34_Click);
+            // 
+            // comboBox8
+            // 
+            this.comboBox8.DropDownStyle = System.Windows.Forms.ComboBoxStyle.DropDownList;
+            this.comboBox8.FormattingEnabled = true;
+            this.comboBox8.Location = new System.Drawing.Point(13, 47);
+            this.comboBox8.Name = "comboBox8";
+            this.comboBox8.Size = new System.Drawing.Size(186, 21);
+            this.comboBox8.TabIndex = 31;
+            // 
+            // label30
+            // 
+            this.label30.AutoSize = true;
+            this.label30.Location = new System.Drawing.Point(10, 13);
+            this.label30.Name = "label30";
+            this.label30.Size = new System.Drawing.Size(41, 13);
+            this.label30.TabIndex = 30;
+            this.label30.Text = "Symbol";
+            // 
+            // button33
+            // 
+            this.button33.Location = new System.Drawing.Point(208, 99);
+            this.button33.Name = "button33";
+            this.button33.Size = new System.Drawing.Size(111, 23);
+            this.button33.TabIndex = 29;
+            this.button33.Text = "SymbolInfoDouble";
+            this.button33.UseVisualStyleBackColor = true;
+            this.button33.Click += new System.EventHandler(this.button33_Click);
+            // 
+            // comboBox7
+            // 
+            this.comboBox7.DropDownStyle = System.Windows.Forms.ComboBoxStyle.DropDownList;
+            this.comboBox7.FormattingEnabled = true;
+            this.comboBox7.Location = new System.Drawing.Point(13, 101);
+            this.comboBox7.Name = "comboBox7";
+            this.comboBox7.Size = new System.Drawing.Size(186, 21);
+            this.comboBox7.TabIndex = 28;
+            // 
             // comboBox6
             // 
             this.comboBox6.DropDownStyle = System.Windows.Forms.ComboBoxStyle.DropDownList;
@@ -1569,91 +1655,6 @@
             this.textBox1.TabIndex = 0;
             this.textBox1.Text = "EURUSD";
             // 
-            // comboBox7
-            // 
-            this.comboBox7.DropDownStyle = System.Windows.Forms.ComboBoxStyle.DropDownList;
-            this.comboBox7.FormattingEnabled = true;
-            this.comboBox7.Location = new System.Drawing.Point(13, 101);
-            this.comboBox7.Name = "comboBox7";
-            this.comboBox7.Size = new System.Drawing.Size(186, 21);
-            this.comboBox7.TabIndex = 28;
-            // 
-            // button33
-            // 
-            this.button33.Location = new System.Drawing.Point(208, 99);
-            this.button33.Name = "button33";
-            this.button33.Size = new System.Drawing.Size(111, 23);
-            this.button33.TabIndex = 29;
-            this.button33.Text = "SymbolInfoDouble";
-            this.button33.UseVisualStyleBackColor = true;
-            this.button33.Click += new System.EventHandler(this.button33_Click);
-            // 
-            // label30
-            // 
-            this.label30.AutoSize = true;
-            this.label30.Location = new System.Drawing.Point(10, 13);
-            this.label30.Name = "label30";
-            this.label30.Size = new System.Drawing.Size(41, 13);
-            this.label30.TabIndex = 30;
-            this.label30.Text = "Symbol";
-            // 
-            // comboBox8
-            // 
-            this.comboBox8.DropDownStyle = System.Windows.Forms.ComboBoxStyle.DropDownList;
-            this.comboBox8.FormattingEnabled = true;
-            this.comboBox8.Location = new System.Drawing.Point(13, 47);
-            this.comboBox8.Name = "comboBox8";
-            this.comboBox8.Size = new System.Drawing.Size(186, 21);
-            this.comboBox8.TabIndex = 31;
-            // 
-            // button34
-            // 
-            this.button34.Location = new System.Drawing.Point(387, 47);
-            this.button34.Name = "button34";
-            this.button34.Size = new System.Drawing.Size(112, 23);
-            this.button34.TabIndex = 32;
-            this.button34.Text = "SymbolInfoTick";
-            this.button34.UseVisualStyleBackColor = true;
-            this.button34.Click += new System.EventHandler(this.button34_Click);
-            // 
-            // button35
-            // 
-            this.button35.Location = new System.Drawing.Point(208, 128);
-            this.button35.Name = "button35";
-            this.button35.Size = new System.Drawing.Size(111, 23);
-            this.button35.TabIndex = 33;
-            this.button35.Text = "TerminalInfoInteger";
-            this.button35.UseVisualStyleBackColor = true;
-            this.button35.Click += new System.EventHandler(this.button35_Click);
-            // 
-            // comboBox9
-            // 
-            this.comboBox9.DropDownStyle = System.Windows.Forms.ComboBoxStyle.DropDownList;
-            this.comboBox9.FormattingEnabled = true;
-            this.comboBox9.Location = new System.Drawing.Point(13, 130);
-            this.comboBox9.Name = "comboBox9";
-            this.comboBox9.Size = new System.Drawing.Size(186, 21);
-            this.comboBox9.TabIndex = 34;
-            // 
-            // comboBox10
-            // 
-            this.comboBox10.DropDownStyle = System.Windows.Forms.ComboBoxStyle.DropDownList;
-            this.comboBox10.FormattingEnabled = true;
-            this.comboBox10.Location = new System.Drawing.Point(13, 157);
-            this.comboBox10.Name = "comboBox10";
-            this.comboBox10.Size = new System.Drawing.Size(186, 21);
-            this.comboBox10.TabIndex = 35;
-            // 
-            // button36
-            // 
-            this.button36.Location = new System.Drawing.Point(208, 157);
-            this.button36.Name = "button36";
-            this.button36.Size = new System.Drawing.Size(111, 23);
-            this.button36.TabIndex = 36;
-            this.button36.Text = "TerminalInfoDouble";
-            this.button36.UseVisualStyleBackColor = true;
-            this.button36.Click += new System.EventHandler(this.button36_Click);
-            // 
             // Form1
             // 
             this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
@@ -1780,7 +1781,7 @@
         private System.Windows.Forms.Button button8;
         private System.Windows.Forms.Button button11;
         private System.Windows.Forms.Button button12;
-        private System.Windows.Forms.ColumnHeader colFeedCount;
+        private System.Windows.Forms.ColumnHeader colExpertHandle;
         private System.Windows.Forms.TabPage tabPage6;
         private System.Windows.Forms.Button button13;
         private System.Windows.Forms.Button button14;
diff --git a/TestClients/TestApiClientUI/Form1.cs b/TestClients/TestApiClientUI/Form1.cs
index ffae6639..2dea1035 100644
--- a/TestClients/TestApiClientUI/Form1.cs
+++ b/TestClients/TestApiClientUI/Form1.cs
@@ -35,6 +35,7 @@ namespace TestApiClientUI
             comboBox10.DataSource = Enum.GetNames(typeof(EnumTerminalInfoDouble));
 
             _apiClient.QuoteUpdated += apiClient_QuoteUpdated;
+            _apiClient.QuoteUpdate += _apiClient_QuoteUpdate;
             _apiClient.QuoteAdded += apiClient_QuoteAdded;
             _apiClient.QuoteRemoved += apiClient_QuoteRemoved;
             _apiClient.ConnectionStateChanged += apiClient_ConnectionStateChanged;
@@ -112,12 +113,18 @@ namespace TestApiClientUI
 
         private void apiClient_QuoteRemoved(object sender, MtQuoteEventArgs e)
         {
-            RunOnUiThread(() => RemoveQuote(e.Quote) );
+            if (e.Quote != null)
+            {
+                RunOnUiThread(() => RemoveQuote(e.Quote));
+            }
         }
 
         private void apiClient_QuoteAdded(object sender, MtQuoteEventArgs e)
         {
-            RunOnUiThread(() => AddNewQuote(e.Quote));
+            if (e.Quote != null)
+            {
+                RunOnUiThread(() => AddNewQuote(e.Quote));
+            }
         }
 
         private void _apiClient_OnLastTimeBar(object sender, TimeBarArgs e)
@@ -131,72 +138,53 @@ namespace TestApiClientUI
         private void apiClient_QuoteUpdated(object sender, string symbol, double bid, double ask)
         {
             Console.WriteLine(@"Quote: Symbol = {0}, Bid = {1}, Ask = {2}", symbol, bid, ask);
+        }
+
+
+        private void _apiClient_QuoteUpdate(object sender, MtQuoteEventArgs e)
+        {
             //if UI of quite is busy we are skipping this update
             if (_isUiQuoteUpdateReady)
             {
-                RunOnUiThread(() => ChangeQuote(symbol, bid, ask));
+                RunOnUiThread(() => ChangeQuote(e.Quote));
             }
         }
 
         private void AddNewQuote(MtQuote quote)
         {
-            if (quote == null)
-                return;
+            var key = quote.ExpertHandle.ToString();
 
-            if (string.IsNullOrEmpty(quote.Instrument) == false
-                && listViewQuotes.Items.ContainsKey(quote.Instrument) == false)
+            if (listViewQuotes.Items.ContainsKey(key) == false)
             {
-                var item = new ListViewItem(quote.Instrument) { Name = quote.Instrument };
+                var item = new ListViewItem(quote.Instrument) { Name = key };
                 item.SubItems.Add(quote.Bid.ToString(CultureInfo.CurrentCulture));
                 item.SubItems.Add(quote.Ask.ToString(CultureInfo.CurrentCulture));
-                item.SubItems.Add("1");
+                item.SubItems.Add(key);
                 listViewQuotes.Items.Add(item);
             }
-            else
-            {
-                var item = listViewQuotes.Items[quote.Instrument];
-                int feedCount;
-                int.TryParse(item.SubItems[3].Text, out feedCount);
-                feedCount++;
-                item.SubItems[3].Text = feedCount.ToString();
-            }
         }
 
         private void RemoveQuote(MtQuote quote)
         {
-            if (quote == null)
-                return;
+            var key = quote.ExpertHandle.ToString();
 
-            if (string.IsNullOrEmpty(quote.Instrument) == false
-                && listViewQuotes.Items.ContainsKey(quote.Instrument))
+            if (listViewQuotes.Items.ContainsKey(key))
             {
-                var item = listViewQuotes.Items[quote.Instrument];
-                int feedCount;
-                int.TryParse(item.SubItems[3].Text, out feedCount);
-                feedCount--;
-                if (feedCount <= 0)
-                {
-                    listViewQuotes.Items.RemoveByKey(quote.Instrument);
-                }
-                else
-                {
-                    item.SubItems[3].Text = feedCount.ToString();
-                }
+                listViewQuotes.Items.RemoveByKey(key);
             }
         }
 
-        private void ChangeQuote(string symbol, double bid, double ask)
+        private void ChangeQuote(MtQuote quote)
         {
             _isUiQuoteUpdateReady = false;
 
-            if (string.IsNullOrEmpty(symbol) == false)
+            var key = quote.ExpertHandle.ToString();
+
+            if (listViewQuotes.Items.ContainsKey(key))
             {
-                if (listViewQuotes.Items.ContainsKey(symbol))
-                {
-                    var item = listViewQuotes.Items[symbol];
-                    item.SubItems[1].Text = bid.ToString(CultureInfo.CurrentCulture);
-                    item.SubItems[2].Text = ask.ToString(CultureInfo.CurrentCulture);
-                }
+                var item = listViewQuotes.Items[key];
+                item.SubItems[1].Text = quote.Bid.ToString(CultureInfo.CurrentCulture);
+                item.SubItems[2].Text = quote.Ask.ToString(CultureInfo.CurrentCulture);
             }
 
             _isUiQuoteUpdateReady = true;
diff --git a/TestClients/TestMtApi/TestMtApi/App.config b/TestClients/TestMtApi/TestMtApi/App.config
index 75054283..82717522 100644
--- a/TestClients/TestMtApi/TestMtApi/App.config
+++ b/TestClients/TestMtApi/TestMtApi/App.config
@@ -1,6 +1,6 @@
-<?xml version="1.0" encoding="utf-8" ?>
+<?xml version="1.0" encoding="utf-8"?>
 <configuration>
     <startup>
-        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.0,Profile=Client" />
+        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5"/>
     </startup>
-</configuration>
\ No newline at end of file
+</configuration>
diff --git a/TestClients/TestMtApi/TestMtApi/My Project/Application.Designer.vb b/TestClients/TestMtApi/TestMtApi/My Project/Application.Designer.vb
index d1e4182b..431f856b 100644
--- a/TestClients/TestMtApi/TestMtApi/My Project/Application.Designer.vb	
+++ b/TestClients/TestMtApi/TestMtApi/My Project/Application.Designer.vb	
@@ -1,7 +1,7 @@
 '------------------------------------------------------------------------------
 ' <auto-generated>
 '     This code was generated by a tool.
-'     Runtime Version:4.0.30319.17929
+'     Runtime Version:4.0.30319.42000
 '
 '     Changes to this file may cause incorrect behavior and will be lost if
 '     the code is regenerated.
diff --git a/TestClients/TestMtApi/TestMtApi/My Project/Resources.Designer.vb b/TestClients/TestMtApi/TestMtApi/My Project/Resources.Designer.vb
index e448f572..510bdcea 100644
--- a/TestClients/TestMtApi/TestMtApi/My Project/Resources.Designer.vb	
+++ b/TestClients/TestMtApi/TestMtApi/My Project/Resources.Designer.vb	
@@ -1,7 +1,7 @@
 '------------------------------------------------------------------------------
 ' <auto-generated>
 '     This code was generated by a tool.
-'     Runtime Version:4.0.30319.17929
+'     Runtime Version:4.0.30319.42000
 '
 '     Changes to this file may cause incorrect behavior and will be lost if
 '     the code is regenerated.
@@ -11,6 +11,7 @@
 Option Strict On
 Option Explicit On
 
+Imports System
 
 Namespace My.Resources
     
@@ -21,20 +22,20 @@ Namespace My.Resources
     '''<summary>
     '''  A strongly-typed resource class, for looking up localized strings, etc.
     '''</summary>
-    <Global.System.CodeDom.Compiler.GeneratedCodeAttribute("System.Resources.Tools.StronglyTypedResourceBuilder", "4.0.0.0"), _
-     Global.System.Diagnostics.DebuggerNonUserCodeAttribute(), _
-     Global.System.Runtime.CompilerServices.CompilerGeneratedAttribute(), _
-     Global.Microsoft.VisualBasic.HideModuleNameAttribute()> _
+    <Global.System.CodeDom.Compiler.GeneratedCodeAttribute("System.Resources.Tools.StronglyTypedResourceBuilder", "4.0.0.0"),  _
+     Global.System.Diagnostics.DebuggerNonUserCodeAttribute(),  _
+     Global.System.Runtime.CompilerServices.CompilerGeneratedAttribute(),  _
+     Global.Microsoft.VisualBasic.HideModuleNameAttribute()>  _
     Friend Module Resources
-
+        
         Private resourceMan As Global.System.Resources.ResourceManager
-
+        
         Private resourceCulture As Global.System.Globalization.CultureInfo
-
+        
         '''<summary>
         '''  Returns the cached ResourceManager instance used by this class.
         '''</summary>
-        <Global.System.ComponentModel.EditorBrowsableAttribute(Global.System.ComponentModel.EditorBrowsableState.Advanced)> _
+        <Global.System.ComponentModel.EditorBrowsableAttribute(Global.System.ComponentModel.EditorBrowsableState.Advanced)>  _
         Friend ReadOnly Property ResourceManager() As Global.System.Resources.ResourceManager
             Get
                 If Object.ReferenceEquals(resourceMan, Nothing) Then
@@ -44,17 +45,17 @@ Namespace My.Resources
                 Return resourceMan
             End Get
         End Property
-
+        
         '''<summary>
         '''  Overrides the current thread's CurrentUICulture property for all
         '''  resource lookups using this strongly typed resource class.
         '''</summary>
-        <Global.System.ComponentModel.EditorBrowsableAttribute(Global.System.ComponentModel.EditorBrowsableState.Advanced)> _
+        <Global.System.ComponentModel.EditorBrowsableAttribute(Global.System.ComponentModel.EditorBrowsableState.Advanced)>  _
         Friend Property Culture() As Global.System.Globalization.CultureInfo
             Get
                 Return resourceCulture
             End Get
-            Set(ByVal value As Global.System.Globalization.CultureInfo)
+            Set
                 resourceCulture = value
             End Set
         End Property
diff --git a/TestClients/TestMtApi/TestMtApi/My Project/Settings.Designer.vb b/TestClients/TestMtApi/TestMtApi/My Project/Settings.Designer.vb
index 3ad0d9d9..275f6c04 100644
--- a/TestClients/TestMtApi/TestMtApi/My Project/Settings.Designer.vb	
+++ b/TestClients/TestMtApi/TestMtApi/My Project/Settings.Designer.vb	
@@ -1,7 +1,7 @@
 '------------------------------------------------------------------------------
 ' <auto-generated>
 '     This code was generated by a tool.
-'     Runtime Version:4.0.30319.17929
+'     Runtime Version:4.0.30319.42000
 '
 '     Changes to this file may cause incorrect behavior and will be lost if
 '     the code is regenerated.
@@ -13,42 +13,42 @@ Option Explicit On
 
 
 Namespace My
-
-    <Global.System.Runtime.CompilerServices.CompilerGeneratedAttribute(), _
-     Global.System.CodeDom.Compiler.GeneratedCodeAttribute("Microsoft.VisualStudio.Editors.SettingsDesigner.SettingsSingleFileGenerator", "10.0.0.0"), _
-     Global.System.ComponentModel.EditorBrowsableAttribute(Global.System.ComponentModel.EditorBrowsableState.Advanced)> _
+    
+    <Global.System.Runtime.CompilerServices.CompilerGeneratedAttribute(),  _
+     Global.System.CodeDom.Compiler.GeneratedCodeAttribute("Microsoft.VisualStudio.Editors.SettingsDesigner.SettingsSingleFileGenerator", "14.0.0.0"),  _
+     Global.System.ComponentModel.EditorBrowsableAttribute(Global.System.ComponentModel.EditorBrowsableState.Advanced)>  _
     Partial Friend NotInheritable Class MySettings
         Inherits Global.System.Configuration.ApplicationSettingsBase
-
-        Private Shared defaultInstance As MySettings = CType(Global.System.Configuration.ApplicationSettingsBase.Synchronized(New MySettings), MySettings)
-
+        
+        Private Shared defaultInstance As MySettings = CType(Global.System.Configuration.ApplicationSettingsBase.Synchronized(New MySettings()),MySettings)
+        
 #Region "My.Settings Auto-Save Functionality"
 #If _MyType = "WindowsForms" Then
-        Private Shared addedHandler As Boolean
+    Private Shared addedHandler As Boolean
 
-        Private Shared addedHandlerLockObject As New Object
+    Private Shared addedHandlerLockObject As New Object
 
-        <Global.System.Diagnostics.DebuggerNonUserCodeAttribute(), Global.System.ComponentModel.EditorBrowsableAttribute(Global.System.ComponentModel.EditorBrowsableState.Advanced)> _
-        Private Shared Sub AutoSaveSettings(ByVal sender As Global.System.Object, ByVal e As Global.System.EventArgs)
-            If My.Application.SaveMySettingsOnExit Then
-                My.Settings.Save()
-            End If
-        End Sub
+    <Global.System.Diagnostics.DebuggerNonUserCodeAttribute(), Global.System.ComponentModel.EditorBrowsableAttribute(Global.System.ComponentModel.EditorBrowsableState.Advanced)> _
+    Private Shared Sub AutoSaveSettings(ByVal sender As Global.System.Object, ByVal e As Global.System.EventArgs)
+        If My.Application.SaveMySettingsOnExit Then
+            My.Settings.Save()
+        End If
+    End Sub
 #End If
 #End Region
-
+        
         Public Shared ReadOnly Property [Default]() As MySettings
             Get
-
+                
 #If _MyType = "WindowsForms" Then
-                   If Not addedHandler Then
-                        SyncLock addedHandlerLockObject
-                            If Not addedHandler Then
-                                AddHandler My.Application.Shutdown, AddressOf AutoSaveSettings
-                                addedHandler = True
-                            End If
-                        End SyncLock
-                    End If
+               If Not addedHandler Then
+                    SyncLock addedHandlerLockObject
+                        If Not addedHandler Then
+                            AddHandler My.Application.Shutdown, AddressOf AutoSaveSettings
+                            addedHandler = True
+                        End If
+                    End SyncLock
+                End If
 #End If
                 Return defaultInstance
             End Get
diff --git a/TestClients/TestMtApi/TestMtApi/TestMtApi.vbproj b/TestClients/TestMtApi/TestMtApi/TestMtApi.vbproj
index adc93b90..b920cae6 100644
--- a/TestClients/TestMtApi/TestMtApi/TestMtApi.vbproj
+++ b/TestClients/TestMtApi/TestMtApi/TestMtApi.vbproj
@@ -13,8 +13,9 @@
     <AssemblyName>TestMtApi</AssemblyName>
     <FileAlignment>512</FileAlignment>
     <MyType>WindowsForms</MyType>
-    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
-    <TargetFrameworkProfile>Client</TargetFrameworkProfile>
+    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
+    <TargetFrameworkProfile>
+    </TargetFrameworkProfile>
     <PublishUrl>publish\</PublishUrl>
     <Install>true</Install>
     <InstallFrom>Disk</InstallFrom>
@@ -40,6 +41,7 @@
     <OutputPath>bin\Debug\</OutputPath>
     <DocumentationFile>TestMtApi.xml</DocumentationFile>
     <NoWarn>42016,41999,42017,42018,42019,42032,42036,42020,42021,42022</NoWarn>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|x86' ">
     <PlatformTarget>x86</PlatformTarget>
@@ -50,6 +52,7 @@
     <OutputPath>bin\Release\</OutputPath>
     <DocumentationFile>TestMtApi.xml</DocumentationFile>
     <NoWarn>42016,41999,42017,42018,42019,42032,42036,42020,42021,42022</NoWarn>
+    <Prefer32Bit>false</Prefer32Bit>
   </PropertyGroup>
   <PropertyGroup>
     <OptionExplicit>On</OptionExplicit>
@@ -67,7 +70,6 @@
     <ApplicationManifest>My Project\app.manifest</ApplicationManifest>
   </PropertyGroup>
   <ItemGroup>
-    <Reference Include="MtApi, Version=1.0.7.0, Culture=neutral, processorArchitecture=MSIL" />
     <Reference Include="System" />
     <Reference Include="System.Data" />
     <Reference Include="System.Deployment" />
@@ -126,6 +128,7 @@
     </EmbeddedResource>
   </ItemGroup>
   <ItemGroup>
+    <None Include="App.config" />
     <None Include="My Project\app.manifest" />
     <None Include="My Project\Application.myapp">
       <Generator>MyApplicationCodeGenerator</Generator>
@@ -159,6 +162,12 @@
       <Install>true</Install>
     </BootstrapperPackage>
   </ItemGroup>
+  <ItemGroup>
+    <ProjectReference Include="..\..\..\MtApi\MtApi.csproj">
+      <Project>{7a76c388-a8fb-4949-8170-24d4742e934e}</Project>
+      <Name>MtApi</Name>
+    </ProjectReference>
+  </ItemGroup>
   <Import Project="$(MSBuildToolsPath)\Microsoft.VisualBasic.targets" />
   <!-- To modify your build process, add your task inside one of the targets below and uncomment it. 
        Other similar extension points exist, see Microsoft.Common.targets.