No$Zoomer is an addon for the No$GBA Nintendo DS emulator, which I created a german language file for.
You can download it here:
http://files.bachsau.com/Archives/No$GBA/No$Zoomer_2.3.0.2_German.zip
If you understand the german language, more information is available on my german website, which you can find at http://www.krawallursache.de/verschiedenes/nogba/.