Hi, A few remarks. In a mkiv luatex setup there are (on a unix system): luatex : binary mtxrun : a copy of mtxrun.lua context : a shell script starting mtxrun Now, the problem there is that these shebang lines are limited, i.e. there is no way to pass an argument and we need to start luatex in lua mode. This is why the program refered to is texlua which is a copy of or symlink to luatex and when called with that name it knows that it has to start in lua mode. On windows there are two small stubs: mtxrun.exe and context.exe an both will start luatex (no need for texlua there) with the same script etc. In a luametatex setup we have a uniform and simpler model. luametatex : binary mtxrun : a copy of luametex or symlink to it context : a copy of luametex or symlink to it mtxrun.lua : used when mtxrun is started context.lua : used when context is started So, here the 'context' link (or copy) from it's name knows to start in lua mode and load context.lua (which actually loads mtxrun.lua + mtx-context.lua). It's the same on all platforms. Now, already long ago we ditched all other stubs simply because given the amount of scripts in a tex live setup it's a recipe for clashes (scripts also have to compete with programs / scripts installed as part of the os and other programs so even more opportunity for clashes). We just use mtxrun --script ... instead (and texmfstart in a mkii setup). These models cannot be mixed, which is why in a luametatex lmtx setup we use "context --luatex" to start mkiv, where luametatex is the runner. Hans ps. I remember the times that context was considered bad because it needed a runner, read: a script was part of the deal and a tex run should not have such a depedency; the need to install perl or ruby was seen as a shortcoming. We also used scripts to generate font metric files (context didn't depend on other programs for toc and index generation and had just one auxiliary file). But times have changed and scripts are now hip and modern in the tex ecosysystem, which is why we basically limit ourselves to just 'context' and 'mtxrun' and start all the other context related scripts indirectly. ----------------------------------------------------------------- Hans Hagen | PRAGMA ADE Ridderstraat 27 | 8061 GH Hasselt | The Netherlands tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl -----------------------------------------------------------------