This source code, "TorVTL", is 
                
  Copyright (c) 2006 by John R. Lange
                                         

Current version is available via:
    http://www.cs.northwestern.edu/~jrl829/torvtl
    http://www.artifex.org/~jarusl/torvtl

Permission is granted to distribute and freely use and extend "TorVTL", or
to incorporate the "TorVTL" source code into other software within these
limits:

   0) "TorVTL" and any derivatives of "TorVTL" must retain this license,
display the above copyright notice when run, and include this file.

   1) "TorVTL" and any derivatives of "TorVTL" may only be freely used for
non-commercial purposes.  If you are interested in commercial use of
"TorVTL", contact John R. Lange (jarusl@cs.northwestern.edu).  

   2) John R. Lange (jarusl@cs.northwestern.edu) must be notified of any
derivatives of "TorVTL"


In simple terms, "TorVTL" may be freely used for any non-commercial,
non-military purposes.  Derivatives of "TorVTL" must be similarly free
and John R. Lange (jarusl@cs.northwestern.edu) must be notified of
their existence.  Commercial use of "TorVTL" and commercial derivatives
of "TorVTL" are NOT ALLOWED under this license.  To use "TorVTL"
commercially, contact John R. Lange (jarusl@cs.northwestern.edu) for
more information.


John R. Lange
Department of Electrical Engineering and Computer Science
Northwestern University
2145 Sheridan Rd
Evanston, IL 60208

jarusl@cs.northwestern.edu
http://www.cs.northwestern.edu/~jrl829
http://www.artifex.org/~jarusl