He encontrado una alternativa a whmcs totalmente gratis, no he tenido la suerte de probarlo pero si lo he visto funcionando en un host.
ver sitio: http://thehostingtool.com/site/
en su web esta esta informacion:
Cita:
Para aquellos que buscan una alternativa y gratis a whmcs creo que este soft les puede servir, asi dejan de usar whmcs pirata que lo nulled no es muy seguro que digamos y al final tarde o temprano te pillaran usando whmcs pirata. What is THT?
The Hosting Tool is a very new script, launched on the 3rd of December 2008 claiming to provide the next generation in free, hosting scripts. It provides you, the webhost complete automation on everything you want it to do. So that means, signup, monthly posts checking, suspension. While it does that, it provides client features like the client control panel that gives the power to the clients hands in what they want to do. They can check their monthly forum posts, edit their details, check announcements. The Hosting Tool also has frequent update and support from the community.
Is it a free WHMCS alternative?
To put it blunt, no. TheHostingTool is NOT a free WHMCS has I've seen alot of people around call it. THT is a script which is mainly designed for free hosts to give them a more efficent business plan, automation and plain simplicity. Paid Hosting is included but no where near at the professional level as other paid alternatives. I thought this should get a mention due to the sheer amount of questions. So if you're looking for a free WHMCS, you're at the wrong place.
Some of the main features
* Direct Intergration with cPanel/WHM & DirectAdmin
* P2H Signup/Monthly with all popular forum boards
* Fully AJAX/JS order form! Has no load times at all, does it all with one page load. Thats to load it up to start.
* Fully featured & powerful Admin Control Panel
* Easy to use and powerful Client Area
* Feature filled Support Center
The Hosting Tool is a very new script, launched on the 3rd of December 2008 claiming to provide the next generation in free, hosting scripts. It provides you, the webhost complete automation on everything you want it to do. So that means, signup, monthly posts checking, suspension. While it does that, it provides client features like the client control panel that gives the power to the clients hands in what they want to do. They can check their monthly forum posts, edit their details, check announcements. The Hosting Tool also has frequent update and support from the community.
Is it a free WHMCS alternative?
To put it blunt, no. TheHostingTool is NOT a free WHMCS has I've seen alot of people around call it. THT is a script which is mainly designed for free hosts to give them a more efficent business plan, automation and plain simplicity. Paid Hosting is included but no where near at the professional level as other paid alternatives. I thought this should get a mention due to the sheer amount of questions. So if you're looking for a free WHMCS, you're at the wrong place.
Some of the main features
* Direct Intergration with cPanel/WHM & DirectAdmin
* P2H Signup/Monthly with all popular forum boards
* Fully AJAX/JS order form! Has no load times at all, does it all with one page load. Thats to load it up to start.
* Fully featured & powerful Admin Control Panel
* Easy to use and powerful Client Area
* Feature filled Support Center
Respuesta: Ya hay alternativa a whmcs y gratis!! 
