Alias /vhcs2 /var/www/vhcs2/gui
<Directory /var/www/vhcs2/gui>
    AllowOverride none
    Options MultiViews IncludesNoExec FollowSymLinks
    ErrorDocument 404 /vhcs2/errordocs/index.php
    DirectoryIndex index.html index.php
</Directory>

...
...

<VirtualHost _default_:*>

    DocumentRoot /var/www/vhcs2/gui

    <Directory /var/www/vhcs2/gui>
        Options Indexes Includes FollowSymLinks MultiViews
        AllowOverride None
        Order allow,deny
        Allow from all
    </Directory>

</VirtualHost>