Shortcuts to installing files
There are circumstances in which most of the fuss of installation can be bypassed:
If you are a MiKTeX user, the
MiKTeX package management system
can usually help;
The package you want may already exist as a ZIP file formatted for
direct installation
.
This question on the Web:
http://www.tex.ac.uk/cgi-bin/texfaq2html?label=inst-scut