Update : this project now is hosted on Github.

A few hours ago I  published in the google code site the code of the Delphi Preview Handler project, under the Mozilla Public License 1.1 , now you can browse in the code and make your suggestions and report bugs using the issue page of the project. I also want to thank to Uwe Raabe by allow me use part of his work in this article to rewrite some parts of the preview handler.