title: use operation in sml (where is current directory smlnj windows)
body: <p>I have never used SML on a Windows machine (have before on a unix machine w/ emacs).</p>
  
  <p>for the life of me I cannot find the current directory when in the sml environment.  If I attempt to:  use "filename.sml" it raising an exception.. I cannot find out where to place my file..</p>
  
  <p>btw file is written in notepad++ and merely named w/ a .sml extension.  </p>