Well, maybe it would be overkill, but adding an option like "Add to PATH, but make a backup first" which creates a .reg backup of the environment variables on the desktop could be a nice option. There seems to be a way to backup deleted environment variables as well, check the 3rd post on this site:<br>
<br><a href="http://www.experts-exchange.com/OS/Microsoft_Operating_Systems/Windows/XP/Q_23153052.html">http://www.experts-exchange.com/OS/Microsoft_Operating_Systems/Windows/XP/Q_23153052.html</a><br><br><div class="gmail_quote">
On Sat, Aug 14, 2010 at 1:58 PM, Wei Cheng <span dir="ltr"><<a href="mailto:rivercheng@gmail.com">rivercheng@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">
Thanks. Then, it seems that it is a bug in NSIS.<br>
<br>
Now I know that this problem does not happen so often, but still is it possible to<br>
warn people to backup their PATH&#12288;before running it? I was fortunate because I<br>
happened to have a backup so I could recover easily. But some one may have worse<br>
luck. :)<br>
</blockquote></div><br>