After installing the standalone version (was quite hard for me with TexWorks), now several problems arises. The simplest document \starttext Test \stoptest compiles without problems. But my book gives now several errors. F.e.: +++++++++++++++++++++++++++++++++++++++++++++ C:/Users/Hussein/context/tex/texmf-context/scripts/context/ruby/base/switch.rb:21: Use RbConfig instead of obsolete and deprecated Config. TeXExec | processing document 'main_inderschule.tex' TeXExec | no ctx file found TeXExec | tex processing method: context TeXExec | TeX run 1 TeXExec | writing option file main_inderschule.top TeXExec | using randomseed 516 TeXExec | tex engine: pdftex TeXExec | tex format: cont-en.mkii This is pdfTeX, Version 3.1415926-2.5-1.40.13 (TeX Live 2012/W32TeX) \write18 enabled. entering extended mode (./main_inderschule.tex ConTeXt ver: 2012.05.30 11:26 MKII fmt: 2012.11.18 int: english/english system : cont-new.mkii loaded (c:/Users/Hussein/context/tex/texmf-context/tex/context/base/cont-new.mkii systems : beware: some patches loaded from cont-new.mkii ) system : cont-sys.rme loaded (c:/Users/Hussein/context/tex/texmf-context/tex/context/user/cont-sys.rme (c:/Users/Hussein/context/tex/texmf-context/tex/context/base/type-siz.mkii) (c:/Users/Hussein/context/tex/texmf-context/tex/context/base/type-one.mkii)) system : main_inderschule.top loaded (./main_inderschule.top) bodyfont : 12pt rm is loaded language : patterns nl->texnansi:texnansi->1->2:2 nl->ec:ec->2->2:2 us-> ec:ec->3->2:3 de->texnansi:texnansi->4->3:3 de->ec:ec->5->3:3 da->ec:ec->6->2:2 sv->ec:ec->7->2:2 af->ec:ec->8->2:2 gb->ec:ec->9->2:2 fr->texnansi:texnansi->1 0->2:2 fr->ec:ec->11->2:2 es->ec:ec->12->2:2 ca->ec:ec->13->2:2 it->texnansi:te xnansi->14->2:2 it->ec:ec->15->2:2 la->ec:ec->16->2:2 pt->texnansi:texnansi->17 ->2:2 pt->ec:ec->18->2:2 ro->ec:ec->19->2:2 pl->pl0:pl0->20->2:2 pl->ec:ec->21-
2:2 pl->qx:qx->22->2:2 cs->il2:il2->23->2:2 cs->ec:ec->24->2:2 sk->il2:il2->25
->2:2 sk->ec:ec->26->2:2 hr->ec:ec->27->2:2 sl->ec:ec->28->2:2 tr->ec:ec->29->2 :2 tk->ec:ec->30->1:2 lt->l7x:l7x->31->2:2 agr->agr:agr->33->2:2 fi->ec:ec->34-
2:2 hu->ec:ec->35->2:2 ru->t2a:t2a->37->2:2 uk->t2a:t2a->38->3:3 loaded
specials : dvips loaded systems : system commands are enabled language : language en is active specials : loading definition file tpd (c:/Users/Hussein/context/tex/texmf-context/tex/context/base/spec-tpd.mkii specials : loading definition file fdf (c:/Users/Hussein/context/tex/texmf-context/tex/context/base/spec-fdf.mkii)) systems : begin file arab_inderschule at line 2 (./arab_inderschule.tex ! Undefined control sequence. l.5 \definehighlight +++++++++++++++++++++++++++++++++ Undefined control sequence "definehighlight"? Why? With the Texlive2012 version of context the same code compiles without problems. So are there some changes in the way of defining something, what I have to change to compile with the last context version? Thanks Huseyin