Include fckeditor outside of domain

We have multiple sites on an IIS 6 server running asp & asp.net. I am wanting to not put a copy of the folder and files in all sites where the editor is used. Instead I want to be able to put it on the same level in the root directory as each domain, and point to it from there. To better understand the servers directory structure here is an outline--
C:\webpages\ will be the root directory where each domain will reside in their own directory something like C:\webpages\somedomain. I want to put the fckeditor directory at that level also like so
C:\webpages\fckeditor. In ASP I can point to this using <!--#include virtual="/fckeditor/editor"--> However, when I set the oEditor.basepath = "/fckeditor" I get a 404 error on the iframe that is generated. This would be because even though the file is located in the same directory on the server, it is not located within a directory in that domain.

Is this possible to do this like I want to do this?

If not, then which files at a bare minimum do I need to include in the domains directory? I have set a custom editor in the config.js file and have severly limited which options are on the toolbar.