Thanks for checking.
The Hauptwerk Advanced and Basic Edition licences have no restrictions on making or publishing recordings of any type, so that's fine with regard to Hauptwerk, given that you have a licence. (Only the Free Edition, and evaluation mode, don't allow recordings to be published.)
If you're using a third-party sample set, then you should also verify that its licence agreement allows recordings to be published. Milan Digital Audio sample sets do allow that, and to my knowledge only OrganArt Media sample sets have any restrictions on it (requiring permission from OrganArt Media before publishing a recording).