2011/8/17 Wolfgang Schuster <schuster.wolfgang@googlemail.com>
The filename of the font is “windings.ttf”.

I now have:
\def\numcharacter#1{\char#1{}}
\let\dochar\numcharacter

\definefont[wingding][windings.ttf at 12pt]

\starttext

windings: {\wingding \dochar{74}\dochar{75}\dochar{76}}

\stoptext

But it just gives:
windings: JKL

--
Cecil Westerhof