If you are getting this error: http://docs.whmcs.com/Plesk#Module_Command_Error:_1006_-_Permission_denied. Code (markup): Are you trying to get WHMCS to automatically setup an account using the Plesk9 module? But you are hit with this error..."WHMCS Module Create Failed: 1006 - Permission denied". Then try this method, it worked for me. Copy and paste this into your configuration.php file: $pleskpacketversion = "1.6.0.0"; Code (markup): I had this issue once with Plesk 9.5 and WHMCS 4.5.2 and the problem was fixed by using this method. I hope the same method works for you also.