winform调用outlook

private void linkLabel1_LinkClicked(object sender, LinkLabelLinkClickedEventArgs e)
 {
     System.Diagnostics.Process.Start("mailto:amysimple@");
 }[System.Runtime.InteropServices.DllImport("shell32.dll", EntryPoint = "ShellExecuteA")]
 public static extern int ShellExecute(
     int hwnd,
     String lpOperation,
     String lpFile,
     String lpParameters,
     String lpDirectory,
     int nShowCmd
 );private void linkLabel2_LinkClicked(object sender, LinkLabelLinkClickedEventArgs e)
 {
     ShellExecute(0, String.Empty, "mailto:amysimple@", String.Empty, String.Empty, 1);
 }