Originally Posted by CasualHost
Blesta is a decent alternative, it has most of the basics WHMCS has to offer with fewer addons. It is a lot cheaper, but most of the industry is used to WHMCS and its extended features.
I use Blesta and can say WHMCS better for WebHosting Business. Just need read instruction and do security step.
If you can't do it, you can buy this service from WHMCS and they install software to your Server.