diff --git a/MtApi/MtApiClient.cs b/MtApi/MtApiClient.cs
index 5bc439d2..819229ff 100755
--- a/MtApi/MtApiClient.cs
+++ b/MtApi/MtApiClient.cs
@@ -858,10 +858,10 @@ namespace MtApi
             return SendCommand<int>(MtCommandType.MessageBox, commandParameters);
         }
 
-        public void PlaySound(string filename)
+        public bool PlaySound(string filename)
         {
             var commandParameters = new ArrayList { filename };
-            SendCommand<object>(MtCommandType.PlaySound, commandParameters);
+            return SendCommand<bool>(MtCommandType.PlaySound, commandParameters);
         }
 
         public void Print(string msg)
@@ -882,10 +882,10 @@ namespace MtApi
             return SendCommand<bool>(MtCommandType.SendFTPA, commandParameters);
         }
 
-        public void SendMail(string subject, string someText)
+        public bool SendMail(string subject, string someText)
         {
             var commandParameters = new ArrayList { subject, someText };
-            SendCommand<object>(MtCommandType.SendMail, commandParameters);
+            return SendCommand<bool>(MtCommandType.SendMail, commandParameters);
         }
 
         public void Sleep(int milliseconds)
diff --git a/MtApi/MtCommandType.cs b/MtApi/MtCommandType.cs
index fd194810..62a5f672 100755
--- a/MtApi/MtCommandType.cs
+++ b/MtApi/MtCommandType.cs
@@ -135,8 +135,8 @@
         iBullsPower                         = 106,
         iCCI                                = 107,
         iCCIOnArray                         = 108,
-        iCustom                             = 109,
-        iCustom_d                           = 10109,
+        //iCustom                             = 109,
+        //iCustom_d                           = 10109,
         iDeMarker                           = 110,
         iEnvelopes                          = 111,
         iEnvelopesOnArray                   = 112,
diff --git a/mq4/MtApi.ex4 b/mq4/MtApi.ex4
index 320c787c..9bd16f4e 100755
Binary files a/mq4/MtApi.ex4 and b/mq4/MtApi.ex4 differ
diff --git a/mq4/MtApi.mq4 b/mq4/MtApi.mq4
index 20304998..5abaca70 100755
Binary files a/mq4/MtApi.mq4 and b/mq4/MtApi.mq4 differ