I'm trying to install the elsarticle class manually on MiKTeX 2.9 (Windows) from the .ins file. However, when I type latex .\elsarticle.ins, I get the following:
This is pdfTeX, Version 3.14159265-2.6-1.40.17 (MiKTeX 2.9)
entering extended mode
! I can't write on file `elsarticle.log'.
Please type another transcript file name:
When I type any other file name, I keep getting the same error.