Build unity application using a unity application.

Hi I've looked around but couldn't get a straight answer.

I've created something similar to a Scene Editor where the user can create it's own scenes. This editor may be standalone or web embedded. What I intend now is for the user to publish its own creations, i.e. the user create a scene and publish it for the other users interact, without the edition options.

This publication would be another unity standalone or webplayer as well. Is this possible? Can a unity program, build another unity program? Is there an easier way to do this?

Hope I've been clear on my explanation...