installing asp.net control

Installation
Integration

Please read the links I posted. It describes everything.
But for your ASP.NET site you need to:

1) Add <textarea id="editor"></textarea> to your aspx page.
2) Add script tag at the bottom of your aspx:

<script type='text/javascript'>
function FCKeditor_OnComplete(editorInstance) {
   editor = editorInstance;
};

var editor = new FCKeditor(editorId);
editor.BasePath = "../Content/fckeditor/" ;
editor.Height = "500px";
editor.ReplaceTextarea();
</script>

3) Be happy and use editor object on your client side.

http://docs.fckeditor.net/FCKeditor_2.x ... stallation