Dear Contex'ers,

Do you by any chance know how to change to the postscript version of a given font?

To be more specific: I am working with Arabtex, whose author K. Lagally, advises using the postscript fonts, made by Taco Hoekwater, but does not describe how. It should be easy, though. 
I have installed everything, ArabTex works perfect, the regular font is fine and works allright for modest purposes, but I need to produce high-quality output soon.

Thanks for any help in advance.

Kind regards,

Robert Ermers