* [http://www.kjthacker.f2s.com/docs/desprog.pdf ''Desktop Environment System'' Programmer's Guide] (PDF file)
* [http://www.cpcwiki.eu/imgs/0/04/Desprog.pdf ''Desktop Environment System'' Programmer's Guide] (PDF file - local mirror)
== Screen shots ==
<gallery caption="Screen shots showing DES and some of the extenstions in action">
Image:des gui 1.png
Image:des gui 2.png
Image:des gui 3.png
Image:des gui 4.png
Image:des gui 5.png
Image:des gui 6.png
Image:des gui 7.png
Image:des gui 8.png
Image:des gui 9.png
Image:des gui 10.png
</gallery>
[[Category:Operating System]] [[category:Expansion ROM]] [[Category:Manual]]