diff --git a/MtApi/EnumTerminalInfoDouble.cs b/MtApi/EnumTerminalInfoDouble.cs
new file mode 100755
index 00000000..57a4154a
--- /dev/null
+++ b/MtApi/EnumTerminalInfoDouble.cs
@@ -0,0 +1,8 @@
+namespace MtApi
+{
+    // https://docs.mql4.com/constants/environment_state/terminalstatus#enum_terminal_info_double
+    public enum EnumTerminalInfoDouble
+    {
+        TERMINAL_COMMUNITY_BALANCE  = 25 // Balance in MQL5.community
+    }
+}
\ No newline at end of file
diff --git a/MtApi/MtApi.csproj b/MtApi/MtApi.csproj
index 62fb4e60..fb8ff55c 100755
--- a/MtApi/MtApi.csproj
+++ b/MtApi/MtApi.csproj
@@ -62,6 +62,7 @@
     <Compile Include="EnumSeriesInfoInteger.cs" />
     <Compile Include="EnumSymbolInfoDouble.cs" />
     <Compile Include="EnumSymbolInfoInteger.cs" />
+    <Compile Include="EnumTerminalInfoDouble.cs" />
     <Compile Include="EnumTerminalInfoInteger.cs" />
     <Compile Include="ExtensionMethods.cs" />
     <Compile Include="Monitors\AvailabilityOrdersEventArgs.cs" />
diff --git a/MtApi/MtApiClient.cs b/MtApi/MtApiClient.cs
index 8164a7ce..06e39417 100755
--- a/MtApi/MtApiClient.cs
+++ b/MtApi/MtApiClient.cs
@@ -683,7 +683,18 @@ namespace MtApi
             return SendCommand<int>(MtCommandType.TerminalInfoInteger, commandParameters);
         }
 
-        //TODO: TerminalInfoDouble
+        ///<summary>
+        ///Returns the value of a corresponding property of the mql4 program environment.
+        ///</summary>
+        ///<param name="propertyId">Identifier of a property. Can be one of the values of the ENUM_TERMINAL_INFO_DOUBLE enumeration.</param>
+        ///<returns>
+        ///Value of double type.
+        ///</returns>
+        public double TerminalInfoDouble(EnumTerminalInfoDouble propertyId)
+        {
+            var commandParameters = new ArrayList { (int)propertyId };
+            return SendCommand<double>(MtCommandType.TerminalInfoDouble, commandParameters);
+        }
 
         ///<summary>
         ///Returns the name of company owning the client terminal.
diff --git a/MtApi/MtCommandType.cs b/MtApi/MtCommandType.cs
index 16ca1315..34370772 100755
--- a/MtApi/MtCommandType.cs
+++ b/MtApi/MtCommandType.cs
@@ -63,7 +63,7 @@ namespace MtApi
         TerminalPath                        = 70,
         TerminalInfoString                  = 153,
         TerminalInfoInteger                 = 204,
-        //TerminalInfoDouble                  = 205,
+        TerminalInfoDouble                  = 205,
 
         //Account Information
         AccountBalance = 40,
diff --git a/TestClients/TestApiClientUI/Form1.Designer.cs b/TestClients/TestApiClientUI/Form1.Designer.cs
index 36f217b6..f634d873 100644
--- a/TestClients/TestApiClientUI/Form1.Designer.cs
+++ b/TestClients/TestApiClientUI/Form1.Designer.cs
@@ -164,6 +164,8 @@
             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();
@@ -1046,6 +1048,8 @@
             // 
             // tabPage4
             // 
+            this.tabPage4.Controls.Add(this.button36);
+            this.tabPage4.Controls.Add(this.comboBox10);
             this.tabPage4.Controls.Add(this.comboBox9);
             this.tabPage4.Controls.Add(this.button35);
             this.tabPage4.Controls.Add(this.button34);
@@ -1631,6 +1635,25 @@
             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);
@@ -1813,6 +1836,8 @@
         private System.Windows.Forms.Button button34;
         private System.Windows.Forms.Button button35;
         private System.Windows.Forms.ComboBox comboBox9;
+        private System.Windows.Forms.Button button36;
+        private System.Windows.Forms.ComboBox comboBox10;
     }
 }
 
diff --git a/TestClients/TestApiClientUI/Form1.cs b/TestClients/TestApiClientUI/Form1.cs
index db7c03e1..ffae6639 100644
--- a/TestClients/TestApiClientUI/Form1.cs
+++ b/TestClients/TestApiClientUI/Form1.cs
@@ -32,6 +32,7 @@ namespace TestApiClientUI
             comboBox7.DataSource = Enum.GetNames(typeof(EnumSymbolInfoDouble));
             comboBox8.DataSource = Enum.GetNames(typeof(MarketInfoModeType));
             comboBox9.DataSource = Enum.GetNames(typeof(EnumTerminalInfoInteger));
+            comboBox10.DataSource = Enum.GetNames(typeof(EnumTerminalInfoDouble));
 
             _apiClient.QuoteUpdated += apiClient_QuoteUpdated;
             _apiClient.QuoteAdded += apiClient_QuoteAdded;
@@ -1275,5 +1276,15 @@ namespace TestApiClientUI
             var result = await Execute(() => _apiClient.TerminalInfoInteger(propId));
             PrintLog($"TerminalInfoInteger: result = {result}");
         }
+
+        //TerminalInfoDouble
+        private async void button36_Click(object sender, EventArgs e)
+        {
+            EnumTerminalInfoDouble propId;
+            Enum.TryParse(comboBox10.Text, out propId);
+
+            var result = await Execute(() => _apiClient.TerminalInfoDouble(propId));
+            PrintLog($"TerminalInfoDouble: result = {result}");
+        }
     }
 }
diff --git a/mq4/MtApi.ex4 b/mq4/MtApi.ex4
index 77f5fc1a..b70a001e 100755
Binary files a/mq4/MtApi.ex4 and b/mq4/MtApi.ex4 differ
diff --git a/mq4/MtApi.mq4 b/mq4/MtApi.mq4
index dc8128f2..5603cfa8 100755
Binary files a/mq4/MtApi.mq4 and b/mq4/MtApi.mq4 differ