I want to use a non-standard hyphenation pattern (Finnish) in some of my documents. I have been able to make it work by: editing cont-usr.tex (removing a % from the \installlanguage) remaking formats (texexec --make) copying the format wile to the .../web2c directory This works. However, I read in the Wiki that "It is generally better to add local settings to a run-time included file like cont-sys.tex instead, so unless your stuff does absolutely have to become part of the format file, you are better off leaving this file well alone." So, where should I put the \installlanguage directive for it to be in the right place? Is it something that really has to be there when the formats are being built, or could it be loaded afterwards (i.e. at run-time)? Could it be put in the cont-sys.tex? TIA, - Ville