Removing /index.php/ Running on XAMPP on a virtual host

[eluser]xecure[/eluser]
Hi guys I tried using the code given in the documentation. For reference this is the code I'm using:

Code:

RewriteEngine on
RewriteCond $1 !^(index\.php|images|robots\.txt)
RewriteRule ^(.*)$ /index.php/$1 [L]

But it isn't working. My set up is a little unique. I'm running XAMPP under windows 8. Even though my XAMPP is installed at C:\xampp My document root isn't C:\xampp\htdocs. I've set up a virtual host so (I believe) my document root is at C:\Users\userName\Dropbox\Projects\projectName. (typing in http://localhost on my browser points to C:\Users\userName\Dropbox\Projects\projectName\index.php)

My .htaccess file is located at C:\Users\userName\Dropbox\Projects\projectName\.htaccess