Hi Helge,
Thanks for your kind reply. I have a MikTeX system installed on Windows XP. The context is part of the installation.
Although I think that all packages mentioned below are installed I get some error messages in the log. The dvi output is generated, but the errors are strange. Is this a kind of incompatibility described in a FAQ?
! Missing { inserted. <to be read again> \def l.659 \unexpanded\def \complexstartchemical[#1]%
This problem was mentioned once 2007 and Hans fixed it and I don't get it with TeXLive 2008. Can you send use the file ppchtex.noc from your system, it's possible MikTeX includes a old version of the file without the patch. Wolfgang ___________________________________________________________________________________ If your question is of interest to others as well, please add an entry to the Wiki! maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context webpage : http://www.pragma-ade.nl / http://tex.aanhet.net archive : https://foundry.supelec.fr/projects/contextrev/ wiki : http://contextgarden.net ___________________________________________________________________________________