[Tex/LaTex] HTML package, useful to put htmlonly and latexonly environments, not found

Question

In the 2008 documentation of latex2html it is referred to a html package that permits to put some latex command inside conditional environments (latexonly and htmlonly).
It's useful because I want my latex source to be universal, and function for PDF creation and for HTML creation too.
Unfortunately there's no html package on CTAN, and no documentation on the Internet, and TeXlive 2012 seems not to include it, so that the command \usepackage{html} is rejected.
Anyone knows how to solve?

Answer 1

As mentioned in comments, latex4html is not developed any more, so it's unlikely it will be possible to find this file (which is n any case very generically named and so hard to track down). You will be best looking at tex4ht as an alternative.