I received this from Telerik:

From: Telerik Admin
Date: 2/13/2013 12:04:00 PM

Hello,

The workaround that I would propose is to attach to the onpaste event of the div content area and fire the PasteFromWord command of RadEditor, which will open the Paste from Word dialog. Your users will paste the Word content in it and after clicking the Paste button, the stripped content will be pasted in the editor:

<telerik:RadEditor ID="txtItemSubject" runat="server" OnClientLoad="OnClientLoad"

  ContentAreaMode="Div">

</telerik:RadEditor>

<script type="text/javascript">

function OnClientLoad(editor, args) {

  editor.attachEventHandler("paste", function (e) {

     editor.fire("PasteFromWord");

     $telerik.cancelRawEvent(e);

     return false;

});

}

</script>

For your convenience I have recorded a video demonstrating my test and the workaround: http://screencast.com/t/kD7eoYak.


Kind regards,
Rumen 
the Telerik team