In XEmacs "21.2 (beta32) (require FEATURE &optional FILE-NAME) In Emacs 20.6 require is a Lisp function. (require FEATURE &optional FILE-NAME NOERROR) If feature FEATURE is not loaded, load it from FILENAME. If FEATURE is not a member of the list `features', then the feature is not loaded; so load the file FILENAME. If FILENAME is omitted, the printname of FEATURE is used as the file name, but in this case `load' insists on adding the suffix `.el' or `.elc'. If the optional third argument NOERROR is non-nil, then return nil if the file is not found. Normally the return value is FEATURE. (require FEATURE &optional FILE-NAME NOERROR) Jari -- http://tiny-tools.sourceforge.net/