BaseHref and local file system

I am creating an HTA with FCK inside it. The problem I am running into currently is basehref doesnt seem to work.

Below is my creation code:

function LoadEditor(value) {
            var oFCKeditor = new FCKeditor( 'FCKEditor1', null, null, 'HTA') ;
            oFCKeditor.BasePath = "fckeditor/";
            if (path != null) {
                tmpath = path;
                tmpath = tmpath.replace(/\\/g, '/'); //swap \ for /
                tmpath = tmpath.substring(0, tmpath.lastIndexOf("/")); //strip filename
                alert("file:///" + tmpath + "/");
                oFCKeditor.Config['BaseHref'] = "file:///" + tmpath + "/";
            }
            contents = value;
            content.innerHTML = oFCKeditor.CreateHtml();   
        }
        
        function FCKeditor_OnComplete( editorInstance )
        {
            editorInstance.Commands.GetCommand('FitWindow').Execute();
            editorInstance.SetData(contents);
            contents = "";
            editorInstance.ResetIsDirty();
        }