@thinkcooper: Thanks for the answer! The items are still in the original installer of course, so...

@imax24: ...it's still in the purchased content in a way. I install every content outside the Poser runtime, so I did not delete it, but I think a warning that it would be deleted by the Content Updater would have been better than to read it after the installation. For those who install it into the runtime this is indeed an unpleasant suprise.