It's a simple Apache configuration that uses Apache's mod_autoindex in conjuction mod_alias.
Here are some screenshot:
- Download the file from here: http://hosh.co/downloads/autoindex.zip
- Extract the contents
- Copy httpd-autoindex.conf to /xampp_install/apache/conf/extra/httpd-autoindex.conf
- Open /xampp_install/apache/conf/httpd.conf and make sure it contains the line: Include "conf/extra/httpd-autoindex.conf" somewhere.
- Copy the new folder to /xampp_install/apache/icons/ so that the folder "new" is a subfolder of "icons".
- Restart Apache
You should now have nice looking directory index. This will work for any Apache installation, but you'll have to figure out what to change and where to move everything.
PS: This is not multilingual, and I doubt I'll make it multilingual, but if you want to, feel free to do so.