Open Source Document Management System | OpenKM

I am using OpenKM version 5.1.7 knowledge management system.But The forum functionality does not appear in the tab.Can any one sharing me the source code or how can i configure it?

Profesional extensions are only installed to our customers at bottom of this page http://wiki.openkm.com/index.php/User_Guide could see all available professional extensions.

If you want more information about it contact with us at http://www.openkm.com/en/contact.html and paste this post url.

Thanks jllort for your reply but I do not understand the reply . What does it mean customer? How can I be your customer? How can i create my own extension?

If you want to become a customer contact with us at http://www.openkm.com/en/contact.html and post this forum url. here you'll found a lot of information about how build your own extensions http://wiki.openkm.com/index.php/Extension_Guide and configure your development IDE http://wiki.openkm.com/index.php/Developer_Guide if you want to build some new feature and share to community or other module licensing type I suggest contact with us before, because we've got a deep knowledge about application and the roadmap future features.