title: Permanently altering a user's %PATH% environment variable via batch or Python
body: <p>I've been having difficulty with getting my users to set the PATH environment variable manually, I'm looking for a way to do this automatically.  A batch file would be preferable, since that would require them to run it themselves (with a warning as to what they're doing), but an addition to the <code>setup.py</code> is acceptable as well.</p>
  
  <p>Other information: <code>SET</code> only affects the current and derivative shells; the permanent values seem to be stored in the Registry somewhere (a place where I dare not tread).</p>