copyright.txt

it is very important

Copyright (c) 2001-2005 by Jaroslaw Malek
All rights reserved.
Author contact: [e-mail]

Using and copying any version of Trace graph program and its documentation
is allowed only for non-commercial purposes provided that the above copyright 
notice and this permission appear in all copies and any materials
related to Trace graph. Commercial use requires a permission from
Jaroslaw Malek. Trace graph cannot be distributed, sold, 
copied or modified without Jaroslaw Malek's permission.
Trace graph is provided with no warranty. Jaroslaw Malek is not responsible 
for any events and results caused by using Trace graph.