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The deal with XOOPS is simple. Module developers create solutions free of charge and without restriction to source code. In return, the community tests their work and reports any issues, also for free.
You are welcome to create an encrypted or commercial module for Xoops, but asking for help to develop it here is definitely not part of the deal.
You may however find some experienced XOOPS users who will be prepared to help you for a fee. Try posting at www.xoopslance.com
A thread is for life. Not just for Christmas.