Ad a windows user i had to know about helm.
They say for helm
"
Parallels Helm is a Microsoft windows control panel solution, empowering hosting providers to control, automate and sell virtually any product or service. Helm allows service providers to keep their operational costs down and serve their customers better, resulting in efficient service, improved revenue and greater levels of customer satisfaction."

It's very nice ell coded control panel. You can request a trial from here.