Link to and attached/embedded file?

Question

I'm using XeTeX and I'd like to have a link to an attached/embedded file.

There's a solution here -- but it doesn't work for me: I'm using TeXlive2012.

As I understand it the best bet is to use attachfile2 package.

Here's an MWE:

\documentclass{article}

\usepackage[xetex]{attachfile2}

\begin{document}

\subsection{Test!}

Link: see \textattachfile{lagrange.png}{this citation}.

\end{document}

I can right-click on a link and save the file -- but it would be much nicer if I could just click the file and let the OS open it with the default application.

Edit:

If one attachs file with attachfile2 -- it behaves differenctly on different readers.

If one embeds a file:

\documentclass{article}
\usepackage{navigator}
\embeddedfile{lagrange}{lagrange.png}
\begin{document}
I attached a file -- called \texttt{lagrange.png}
\end{document}

some users won't find it.

So the most stable way is to put files to embed in a special dir, say in flz, and distribute the zip folder:

.
├── 1.pdf
└── flz
    └── lagrange.png

code:

\documentclass{article}
\usepackage{hyperref}
\begin{document}
See \href{run:flz/lagrange.png}{here}.
\end{document}

Then it's clickable and stable.

Edit 2:

I'm using attachfile2 as posted in the first MWE.