(Sorry, wrong email title) Am 18.11.2012 14:45, schrieb ntg-context-request@ntg.nl:

You process your document with MkIV (texexec <filename> or context --pdftex <filename>) but your document requires MkIV (context <filename>) because you use the command \definehightlight which is only available with MkIV.

Wolfgang Thanks.

The wiki says to write in the parameters of texworks texexec --lua $fullname So this is for MkIV. How to change it? Just changing into context $fullname and the peogramm texexec.exe into context.exe results in the following error: ++++++++++++++++ This is LuaTeX, Version beta-0.70.2-2012111114 (TeX Live 2012/W32TeX) \write18 enabled. (C:/Users/Hussein/context/tex/texmf-context/scripts/context/stubs/unix/context ConTeXt ver: 2012.05.30 11:26 MKIV fmt: 2012.11.18 int: english/english system > cont-new.mkiv loaded (C:/Users/Hussein/context/tex/texmf-context/tex/context/base/cont-new.mkiv system > beware: some patches loaded from cont-new.mkiv ) system > context.top loaded (context.top) fonts > latin modern fonts are not preloaded languages > language en is active ! You can't use `macro parameter character #' in vertical mode. system > tex > error on line 1 in file C:/Users/Hussein/context/tex/texmf-context/scripts/context/stubs/unix/context: You can't use ` ... 1 >> #!/bin/sh 2 mtxrun --script context "$@" 3 l.1 # !/bin/sh ? Der Prozess wurde vom Benutzer abgebrochen ++++++++++++++++++++ Danke dir! Huseyin