Use the Attachment property to attach files to your application. To attach files to an email message you can set Attachment property, or you can set the argument Attachement of Send method. The following method shows two different ways how you can attach files to a Message object:

Private Sub Form_Load()
    Dim m As Message
    Set m = Runtime1.NewMessage
    If (0 = m.Send("myaccount@usermail.com", "sss@colam.com", "Test", "This is a test message", "c:\winnt\system32\setup.exe;c:\winnt\system32\setup.bin")) Then
        MsgBox "The message was succesfully delivered "
    End If
End Sub

Private Sub Form_Load()
    Dim m As Message
    Set m = Runtime1.NewMessage
    m.Attachment = "c:\winnt\system32\setup.exe;c:\winnt\system32\setup.bin"
    If (0 = m.Send("myaccount@usermail.com", "sss@colam.com", "Test", "This is a test message")) Then
        MsgBox "The message was succesfully delivered "
    End If
End Sub