The class items in the style dropdown needed to be disabled going to this string. Example DisableClassList="BreadCrumb, TopicMenu, Footer"
<% Dim rte Set rte=new RichTextEditor rte.Text="Type here" rte.DisableClassList="class1, class2" rte.ID="Editor1" rte.MvcInit() Response.Write(rte.GetString()) // use Request.Form("Editor1")to retrieve the data %>