Пример приложения Message Queuing

// Course.cs
namespace MSMQSample
{
   public class Course
   {
      public string Title { get; set; }
   }
}

// Customer.cs
namespace MSMQSample
{
   public class Customer
   {
      public string Company { get; set; }
      public string Contact { get; set; }
   }
}

// CourseOrder.cs
namespace MSMQSample
{
    public class CourseOrder
    {
        public const string CourseOrderQueueName = "FormatName:Public=D99CE5F3–4282–4a97–93EE-E9558B15EB13";

        public Customer Customer { get; set; }
        public Course Course { get; set; }
    }
}

<Window x:Class="MSMQSample.CourseOrderWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        Title="Course Order" Height="300" Width="300">
    <Window.Resources>

        <Style x:Key="Style1">
            <Setter Property="Control.VerticalAlignment" Value="Center" />
            <Setter Property="Control.Margin" Value="5" />
        </Style>

        <Style TargetType="{x:Type Label}" BasedOn="{StaticResource Style1}"/>
        <Style TargetType="{x:Type Button}" BasedOn="{StaticResource Style1}" />
        <Style TargetType="{x:Type CheckBox}" BasedOn="{StaticResource Style1}" />
        <Style TargetType="{x:Type TextBox}" BasedOn="{StaticResource Style1}" />
        <Style TargetType="{x:Type ComboBox}" BasedOn="{StaticResource Style1}"></Style>

    </Window.Resources>
    <Grid>
        <Grid.RowDefinitions>
            <RowDefinition />
            <RowDefinition />
            <RowDefinition />
            <RowDefinition />
        </Grid.RowDefinitions>
        <Grid.ColumnDefinitions>
            <ColumnDefinition Width="*" />
            <ColumnDefinition Width="1.5*" />
        </Grid.ColumnDefinitions>
        <Label x:Name="labelCourse" Grid.Row="0" Grid.Column="0">Название курса:</Label>
        <Label x:Name="labelCompany" Grid.Row="1" Grid.Column="0">Компания:</Label>
        <Label x:Name="labelContact" Grid.Row="2" Grid.Column="0">Контакт:</Label>
        <CheckBox x:Name="checkBoxPriority" Grid.Row="3" Grid.Column="0">Высокий приоритет</CheckBox>
        <ComboBox x:Name="comboBoxCourses" Grid.Row="0" Grid.Column="1">
            <ComboBoxItem>Advanced .NET Programming</ComboBoxItem>
            <ComboBoxItem>Programming with LINQ</ComboBoxItem>
            <ComboBoxItem>Distributed Applications with WCF</ComboBoxItem>
        </ComboBox>
        <TextBox x:Name="textCompany" Grid.Row="1" Grid.Column="1" />
        <TextBox x:Name="textContact" Grid.Row="2" Grid.Column="1" />
        <Button  x:Name="buttonSubmit" Click="buttonSubmit_Click" Grid.Row="3" Grid.Column="1">Отправить заказ</Button>
    </Grid>
</Window>

private void buttonSubmit_Click(object sender, RoutedEventArgs e)
{
            try
            {
                var order = new CourseOrder
                {
                    Course = new Course()
                    {
                        Title = comboBoxCourses.Text
                    },
                    Customer = new Customer
                    {
                        Company = textCompany.Text,
                        Contact = textContact.Text
                    }
                };
                
                // Для частной очереди использовать
                // using (MessageQueue queue = new MessageQueue(@".\Private$\CourseOrder"))
                using (MessageQueue queue = new MessageQueue(
                    CourseOrder.CourseOrderQueueName))
                using (var message = new Message(order))
                {
                    if (checkBoxPriority.IsChecked == true)
                    {
                        message.Priority = MessagePriority.High;
                    }
                    
                    message.Recoverable = true;
                    queue.Send(message,  String.Format("Заказ курса {{{0}}}",
                        order.Customer.Company));
                }

                MessageBox.Show("Заказ курса отправлен", "Заказ курса",
                    MessageBoxButton.OK, MessageBoxImage.Information);
            }
            catch (MessageQueueException ex)
            {
                MessageBox.Show(ex.Message, "Ошибка при создании заказа",
                    MessageBoxButton.OK, MessageBoxImage.Error);
            }
}

using System;
using System.Windows;
using System.Messaging;
using System.Threading.Tasks;
using System.Windows.Threading;

namespace MSMQSample
{
    public partial class CourseOrderReceiverWindow : Window
    {
        private MessageQueue orderQueue;

        public CourseOrderReceiverWindow()
        {
            InitializeComponent();

            // Для частной очереди заменить на
            // string queueName = @".\Private$\CourseOrder";
            string queueName = CourseOrder.CourseOrderQueueName;

            orderQueue = new MessageQueue(queueName);

            orderQueue.Formatter = new XmlMessageFormatter(
                new Type[]
                {
                    typeof(CourseOrder),
                    typeof(Customer),
                    typeof(Course)
                });

            // Запуск задачи, заполняющейListBox заказами
            Task t1 = new Task(PeekMessages);
            t1.Start();
        }
        
        ...

private void PeekMessages()
{
            using (MessageEnumerator messagesEnumerator =
                  orderQueue.GetMessageEnumerator2())
            {
                while (messagesEnumerator.MoveNext(TimeSpan.FromHours(3)))
                {
                    var labelId = new LabelIdMapping()
                    {
                        Id = messagesEnumerator.Current.Id,
                        Label = messagesEnumerator.Current.Label
                    };
                    Dispatcher.Invoke(DispatcherPriority.Normal,
                          new Action<LabelIdMapping>(AddListItem), labelId);
                }
            }
            MessageBox.Show("Нет заказов за последние 3 часа. Выход из потока",
                  "Получатель сообщений о заказе", MessageBoxButton.OK,
                  MessageBoxImage.Information);
}

private void AddListItem(LabelIdMapping labelIdMapping)
{
            listOrders.Items.Add(labelIdMapping);
}

private class LabelIdMapping
{
            public string Label { get; set; }
            public string Id { get; set; }

            public override string ToString()
            {
                return Label;
            }
}

private void listOrders_SelectionChanged(object sender, RoutedEventArgs e)
{
            LabelIdMapping labelId = listOrders.SelectedItem as LabelIdMapping;
            if (labelId == null)
                return;

            orderQueue.MessageReadPropertyFilter.Priority = true;
            Message message = orderQueue.PeekById(labelId.Id);

            CourseOrder order = message.Body as CourseOrder;
            if (order != null)
            {
                textCourse.Text = order.Course.Title;
                textCompany.Text = order.Customer.Company;
                textContact.Text = order.Customer.Contact;
                buttonProcessOrder.IsEnabled = true;

                if (message.Priority > MessagePriority.Normal)
                {
                    labelPriority.Visibility = Visibility.Visible;
                }
                else
                {
                    labelPriority.Visibility = Visibility.Hidden;
                }
            }
            else
            {
                MessageBox.Show("Выбранный элемент не входит в список заказов",
                      "Получатель сообщений о заказе", MessageBoxButton.OK,
                      MessageBoxImage.Warning);
            }
}

private void buttonProcessOrder_Click(object sender, RoutedEventArgs e)
{
            LabelIdMapping labelId = listOrders.SelectedItem as LabelIdMapping;
            Message message = orderQueue.ReceiveById(labelId.Id);

            listOrders.Items.Remove(labelId);
            listOrders.SelectedIndex = -1;
            buttonProcessOrder.IsEnabled = false;
            textCompany.Text = string.Empty;
            textContact.Text = string.Empty;
            textCourse.Text = string.Empty;

            MessageBox.Show("Заказ курса обработан", "Получатель сообщений о заказе",
                  MessageBoxButton.OK, MessageBoxImage.Information);
}