Hello csw900,
(Topic moved here.)
Thanks for the interest in releasing a sample set.
The CODM user's guide (on the Help menu in Hauptwerk) covers everything you'd need to know about creating the organ definition itself.
For formatting and packaging the samples for public release, you'd also need a copy of our sample set creators guide, which we make available privately on request to licensed users. Can I first just verify whether you actually have a licence for Hauptwerk (either the Advanced Edition or Basic Edition -- the Free/evaluation version doesn't count, I'm afraid)?
We'd also need to assign unique developer ID ranges to you, which we can also do (for no charge) if you have a licence.