Hi we all know you can change ur whmcs admin folder to ur wish list but once it is already installed can you change a name you already setted like billing to bills? I think it would blow the codes of ur website function and linking but I think it could be made just giving a retouch to ur sites code,let me hear what you think please
Usually just a matter of making the appropriate changes in the WHMCS database. Not a big deal at all.
Chaning the path and protect the trusted IPs with .htaccess is a good solution to reduce attack/flooding.
It's has been stated clearly on how you can change your admin folder here http://docs.whmcs.com/Further_Security_Steps You only need to edit your configuration.php and your cron.
Yeah, he also said he knows that the admin directory can be changed, but wanted to change the entire directory. Who knows? I don't really know what he is trying to do now.