Problem solve Get help with specific problems with your technologies, process and projects.

How do I call outlook.exe to send an email with VB.NET?

I'm developing using VB.NET and I want to be able to call outlook.exe to send an email - but I need to supply the...

email address and title etc. so that the user needs only to fill in the text portion. It's a Windows, not Web, application. How do I go about doing this?

First you must set a reference to the Outlook object model (right click on References, select Add Reference, click the COM tab, and find the Outlook object model). For example, for Outlook 2000 you would look for Microsoft Outlook 9.0 Object Library. As an example, here is the code to return the number of messages in the users inbox:


Public Class Form1
    Inherits System.Windows.Forms.Form

#Region " Windows Form Designer generated code "

    Public Sub New()

        'This call is required by the Windows Form Designer.

        'Add any initialization after the InitializeComponent() call

    End Sub

    'Form overrides dispose to clean up the component list.
    Protected Overloads Overrides Sub Dispose(ByVal disposing As
        If disposing Then
            If Not (components Is Nothing) Then
            End If
        End If
    End Sub

    'Required by the Windows Form Designer
    Private components As System.ComponentModel.IContainer

    'NOTE: The following procedure is required by the Windows Form
    'It can be modified using the Windows Form Designer.  
    'Do not modify it using the code editor.
    Friend WithEvents Button1 As System.Windows.Forms.Button
    <System.Diagnostics.DebuggerStepThrough()> Private Sub
        Me.Button1 = New System.Windows.Forms.Button()
        Me.Button1.Location = New System.Drawing.Point(168, 120)
        Me.Button1.Name = "Button1"
        Me.Button1.TabIndex = 0
        Me.Button1.Text = "Button1"
        Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13)
        Me.ClientSize = New System.Drawing.Size(292, 266)
        Me.Controls.AddRange(New System.Windows.Forms.Control()
        Me.Name = "Form1"
        Me.Text = "Form1"

    End Sub

#End Region

    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As
System.EventArgs) Handles Button1.Click
        Dim objOutlook As Outlook.Application
        Dim objNamespace As Outlook.NameSpace
        Dim objMAPIFolder As Outlook.MAPIFolder

        objOutlook = New Outlook.Application()
        objNamespace = objOutlook.GetNamespace(Type:="MAPI")
        objMAPIFolder =

        MsgBox("You have " & objMAPIFolder.Items.Count & _
          " messages in your Inbox.", vbInformation)

    End Sub
End Class


This was last published in June 2002

Dig Deeper on B2B integration solutions



Find more PRO+ content and other member only offers, here.

Have a question for an expert?

Please add a title for your question

Get answers from a TechTarget expert on whatever's puzzling you.

You will be able to add details on the next page.

Start the conversation

Send me notifications when other members comment.

By submitting you agree to receive email from TechTarget and its partners. If you reside outside of the United States, you consent to having your personal data transferred to and processed in the United States. Privacy

Please create a username to comment.