# How to install XyMTeX to work with TeX Live on Windows 7

I write my reports with LaTeX. I use TeXmaker plus TeX Live distribution. I want to use XyMTeX in a document when I wanna use \usepackage{xymtex} but there are errors. I don't know anything about how to install a new package. I'm new to LaTeX but I'm well experienced with Windows

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@Jasper ... except that xymtex isn't free (in the sense of "air", at least) so isn't in tex live. xymtex is a marvel (and all that) but it's big and unwieldy and difficult to "keep up with"; there are real chemists around here (i was last a chemist in 1965...) -- they might be able to suggest something better. –  wasteofspace May 4 '12 at 19:25
I'll be grateful if someone suggests any other better package or bundle. Thank you jasper Loy. –  Milad Olad May 5 '12 at 3:32
I haven't used this package before, but I did look at it for some of my drawing ctan.org/pkg/chemfig. There is a brief tutorial/example at this location as well: mychemistry.eu/2011/11/a-small-exercise –  J M Sep 1 '12 at 21:17
Concerning alternatives have a look at Can you make chemical structure diagrams in LaTeX? –  cgnieder Sep 2 '12 at 14:16

For me, installing XyMTeX worked well enough using the .zip file containing the latest version. What I did:

• Download the .zip file
• Extract it
• Copy the entire contents (xymtex folder) to my local TeX tree. On Windows with TeX Live, that is %USERPROFILE%\texmf (Linux ~/texmf, Mac ~/Library/texmf).

The .zip file contains the code plus source, but as it works without further unpacking I would just use as-is. Following the above steps, the simple demo

\documentclass{article}
\usepackage{xymtexpdf}
\usepackage{chmst-pdf}
\begin{document}
\Rtrigonal{0==C;1D==O;2==Cl;3==F}
\decalinevb{1D==O;2FB==C;2GA==H}
\end{document}


works fine using pdfLaTeX. (Note: the XyMTeX manual has xymtxpdf as the package name, but this seems to be erroneous as the file is called xymtexpdf.sty.)

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