This question is very similar to a previous post: Where do I place my own .sty files, to make them available to all my .tex files?
I am using MiKTeX 2.9 and TeXnicCenter to compose and execute my LaTeX file(s) on Windows 7. I am using a template from Elsevier to submit a journal article, but I am getting the LaTeX Error that File 'numcompress.sty' not found. This file is currently located in the same directory as the other
C:\Program Files (x86)\MikTex 2.9\tex\latex\elsarticle. I have actually followed the directions posted to the above question exactly: http://tex.stackexchange.com/a/20121/ but still have had no change in outcome.