ClientExec is a great billing and support application, that is designed to facilitate the management of small and mid-sized hosting suppliers. It's the link between the front- and the back-end and it allows for a customer to purchase a web hosting package online then to have their account activated. ClientExec will make it extremely easy for you to generate invoices, to set prices for web hosting packages and domain names or to watch performance stats. When you use this app, you can add a payment processor, a domain name registrar or an SSL provider in several simple steps. ClientExec also has an integrated ticketing system, that will allow you to provide support to your customers. If you decide to start your own reseller hosting business and other people to help you in this venture, you can provide them with different levels of access and each level will be able to access different sections and options in ClientExec.