WHMCS is an all-in-one client management, support and billing solution for online business. WHMCS provides automated billing and manage everything up to the end. With WHMCS, you are in control with a very powerful business automation tool. WHMCS is very powerful tool for web hosting provider companies. WHMCS manages all web hosting and domain accounts without doing any extra efforts to end user. WHMCS can create/renews shared hosting account automatically as soon as an order is received or an invoice is marked as paid. WHMCS is also very good for managing reseller hosting accounts.