Codeigniter in Subdirectory of Wordpress

[eluser]Unknown[/eluser]
I have a wordpress site that needs a big application added to it. Thus, I want to install codeigniter in a subdirectory with access to wordpress header, footer, etc.

I know if I add 'require('../wp-blog-header.php');' to codeigniter's index.php I will have access to wordpress. However, I get a 404 error (from wordpress) when I want to access views in codeigniter.

Does anyone know of a way to make this work? A way to trick wordpress into thinking my subdirectory views are a page so I don't get the 404 error.

(note: the wordpress site is too big to convert to codeigniter)