Open web site inside of Outlook using VSTO

private void ThisAddIn_Startup(object sender, System.EventArgs e)
{

Office.CommandBarComboBox webControl1 = (Office.CommandBarComboBox)this.Application.ActiveExplorer().CommandBars.FindControl(26, 1740, missing, missing);

webControl1.Text = "www.sa-action.blogspot.com";

}