Style french.sty (de BG, version 5,00 de décembre 1999) and html.sty are not compatible. Here is the: C:\TAUPIN\FFM\ENVIRONT>tex386 -mt25000 -mf80000 -ma200 -ms4000 "&latex" \renewc$ This is emTeX (tex386), Version 3.14159 [4b] (no format preloaded) **&latex \renewcommand\encodingdefault{T1} \input tttt1 LaTeX2e <1999/12/01> patch level 1 (tttt1.tex (d:/emtex/texinput/latex2e/article.cls Document Class: article 1998/05/05 v1.3y Standard LaTeX document class (d:/emtex/texinput/size10.clo)) (d:/emtex/texinput/french/french.sty -23- Extension : style french V4,05b -- 18 fevrier 1999 -- (B.Gaulle) -24- french.sty utilise dans ce document le codage de fonte T1. -25- french.sty affiche ici ses messages en 7-bits << \`a la TeX >>. (d:/emtex/texinput/latex2e/latexsym.sty) (d:/emtex/texinput/french/fenglish.sty )) (html.sty) (tttt1.aux) ! LaTeX Error: Command \c@chapter already defined. Or name \end... illegal, see p.192 of the manual. See the LaTeX manual or LaTeX Companion for explanation. Type H <return> for immediate help. ... l.3 \begin{document} ? (d:/emtex/texinput/ulasy.fd) LaTeX Warning: No \author given. [1] (tttt1.aux) ) Output written on tttt1.dvi (1 page, 392 bytes). -------------------------------------------------------------------------------- Explanation: french.sty delays all its definitions until the \begin{document} instead of doing them at à \usepackage{french} Unfortunately, inbetween, html.sty did the following: ------------------------------------------------------------------------------ % % Allocate a new set of section counters, which will get incremented % for "*" forms of sectioning commands, and for a few miscellaneous % commands. % \@ifundefined{c@part}{\newcounter{part}}{}% \newcounter{lpart} \newcounter{lchapter}[part] \@ifundefined{c@chapter}% {\let\Hchapter\relax \newcounter{chapter}\let\thechapter\relax \newcounter{lsection}[part]}% {\let\Hchapter=\chapter \newcounter{lsection}[chapter]} \newcounter{lsubsection}[section] \newcounter{lsubsubsection}[subsection] \newcounter{lparagraph}[subsubsection] \newcounter{lsubparagraph}[paragraph] %\newcounter{lequation} ------------------------------------------------------------------------ Latex2html users and french.sty uses will respond: A- french.sty is bas since it postpones its declarations to \begin{document} B- since html.sty makes french.sty crash, it means that html.sty is faulty. (Note that this trouble happens since one year, old versions have nor reference to c@chapter. - ------------------------------------------------------------------------ Daniel Taupin, Physique des Solides, Univ. Paris-Sud, 91405 ORSAY E-mail= mailto:[EMAIL PROTECTED] Tél: (33)1.69.15.60.79, Fax: (33)1.69.15.60.86, home/fax: (33)1.60.10.26.44 ------------------------------------------------------------------------