outlook-addin Getting started with outlook-addin Create first outlook-addin - Hello World

Example

1. Open Visual Studio

2. Select File --> New --> Project menu or push Ctrl + Shift + N buttons

3. Select Outlook VSTO Add-in template

4. Add the following code to the project:

private void ThisAddIn_Startup(object sender, System.EventArgs e)
{
     MessageBox.Show("Hello world");
}

5. Run the program