XWiki

I followed all the instructions on the installation guide (installed in windows, with IIS).

I installed the mediawiki, the installation created the LocalSettings.php file, and then I moved that file into the root directory. I then followed the link to get to http://localhost/mediawiki/index.php <-- This is the part where I get stuck.

My web browser always come back with an error saying "HTTP 404 - File not found" but the thing is, the file is there. I tested other php files and they all work except for the index.php.

Could someone help me out as to why this is not working? The file and root directory all have permissions.