Launchers are used to perform task provided by phone operating system. Sending SMS is feature of Windows phone operating system and can be used by Launcher API. SmsCompseTask launcher is used to send SMS. This task class is defined as below,


To work with SmsComposeTask, first you need to add namespace of Microsoft.Phone.Task


Then create instance of SmsComposeTask.


Next you need to set required or optional parameter for the launcher task. Required parameters for SmsComposeTask are

  1. To number
  2. Body of SMS


So first set the parameter as below,


And SMS body as below,


Last step you need to launch SMS send application provided by operating system. You can show that as below,


If you put all code together and want to send SMS on click event of button then full code will be as below,

using System;
using System.Windows;
using Microsoft.Phone.Controls;
using Microsoft.Phone.Tasks;

namespace test
public partial class MainPage : PhoneApplicationPage

public MainPage()

private void btnSendSMS_Click(object sender, RoutedEventArgs e)

SmsComposeTask smsComposeTask = new SmsComposeTask();
smsComposeTask.To = "9158153792";
smsComposeTask.Body = "hey I am sending u SMS";



When you run above code you will get application running as below,


When you click on Send SMS button, you will get drafted SMS with TO and body set as below,


Now you can either edit the message or set other recipients or send SMS as it is. I hope this post was useful. Thanks for reading Smile

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4 thoughts on “Code to Send SMS in Windows Phone 7

  1. if it possible to send SMS without showing the native SMS compose App.
    My AIM is to send silent SMS for SMS scheduler

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