NPS Community Edition are distributed under the terms of the Gnu General Public License (GPL) Version 2,it's free.

NPS professional version and enterprise version are both business versions, you need to pay for use. They share the same code and function with community version, the difference is the level of technology support and updating service. Moreover, it is not necessary for business version to follow GPL.

Difference between NPS professional and NPS enterprise: NPS professional can be solely applied to construct and manage enterprise website. While besides this function, NPS enterprise can be applied to host system for operation purpose, it also can be integrated with other programs to resell.

JWebstar provides complete and deployed NPS systems for website hosting service. These systems include serial server, firewall, router, operation system and system soft wares such as ORACLE. One of the advantages for hosting websites is that you can use your own domain to manage website without any investment on hard wares and license.

Another advantage for hosting website is that you don’t need to maintain it. Jwebstar have full-time professionals who will manage, maintain, update your whole system and backup data. The reliable distributed cluster will assure your website 99% accessibility.

Jwebstar also provide other services such as custom web programming, third-party system integration,and system installation & optimization..