Idris,
How do you make/use the lamda format in luatex? Thnx in advanvce!
I'm not sure what you mean by lambda in luatex. Lambda is just aleph + latex. What I've done is to copy latex.ini as lualatex.ini and modify it so that it calls lualatex.ltx instead of latex.ltx; this files is like latex.ltx but with a few changes to avoid the loading of hyphenation patterns and several non utf-8 chars. I then modified fmtutil.cnf and run fmtutil. I'm using the TeX Live 2005, a web2c based distribution with kpathsea (which seems to be required by the luatex binary for Windows). As for Mem, I'm still unable to use it because the model for input encondings in luatex is so different (and I'm not sure it's the right model, but I have to make further experiments). In Mem they are based on ocp's, so that omega/aleph has direct control on them and can be changed freely. Javier