diff --git a/Server/Forms/FrmRemoteDesktop.cs b/Server/Forms/FrmRemoteDesktop.cs
index 7adff11b..7f2efb6a 100644
--- a/Server/Forms/FrmRemoteDesktop.cs
+++ b/Server/Forms/FrmRemoteDesktop.cs
@@ -325,7 +325,8 @@ private void OnKeyDown(object sender, KeyEventArgs e)
         {
             if (picDesktop.Image != null && _enableKeyboardInput && IsStarted && this.ContainsFocus)
             {
-                e.Handled = true;
+                if (!IsLockKey(e.KeyCode))
+                    e.Handled = true;
 
                 if (_keysPressed.Contains(e.KeyCode))
                     return;
@@ -341,7 +342,8 @@ private void OnKeyUp(object sender, KeyEventArgs e)
         {
             if (picDesktop.Image != null && _enableKeyboardInput && IsStarted && this.ContainsFocus)
             {
-                e.Handled = true;
+                if (!IsLockKey(e.KeyCode))
+                    e.Handled = true;
 
                 _keysPressed.Remove(e.KeyCode);
 
@@ -350,6 +352,13 @@ private void OnKeyUp(object sender, KeyEventArgs e)
             }
         }
 
+        private bool IsLockKey(Keys key)
+        {
+            return ((key & Keys.CapsLock) == Keys.CapsLock)
+                || ((key & Keys.NumLock) == Keys.NumLock)
+                || ((key & Keys.Scroll) == Keys.Scroll);
+        }
+
         private void btnHide_Click(object sender, EventArgs e)
         {
             panelTop.Visible = false;