From: Logan Capaldo <logancapaldo@...>
Date: 2006-03-27T05:25:09+09:00
Subject: Re: Check for expiry in Shareware applications ?

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On Mar 26, 2006, at 10:48 AM, Nuralanur@aol.com wrote:

> well thanks for your nice thoughts!
> I was thinking about Erik Veenstra's rubyscript2exe programs when I
> wrote about non-open source software ...

rubyscript2exe is basically a self extracting tarball, you won't  
really be able to prevent people from changing the code. To quote  
from the perl faq:

> 4)  If you're worried about them using your software without licence,
> 	you put some huge disclaimer at the top that says something like
> 	the following.  This is actually the best solution, because only a
> 	legal solution will really work if legality is what you're worried
> 	about: trying to solve legal problems with technical solutions
> 	is not worth the effort, and too easily circumvented.
>
> 	    This is UNPUBLISHED PROPRIETARY SOURCE CODE of XYZZY, Inc.; the
> 	    contents of this file may not be disclosed to third parties,
> 	    copied or duplicated in any form, in whole or in part, without
> 	    the prior written permission of XYZZY, Inc.
>
> 	    Permission is hereby granted soley to the licencee for use of
> 	    this source code in its unaltered state.  This source code may
> 	    not be modified by licencee except under direction of XYZZY
> 	    Inc.  Neither may this source code be given under any
> 	    circumstances to non-licensees in any form, including source
> 	    or binary.  Modification of this source constitutes breach of
> 	    contract, which voids any potential pending support
> 	    responsibilities by XYZZY Inc.  Divulging the exact or
> 	    paraphrased contents of this source code to unlicensed parties
> 	    either directly or indirectly constitutes violation of federal
> 	    and international copyright and trade secret laws, and will be
> 	    duly prosecuted to the fullest extent permitted under law.
>
> 	    This software is provided by XYZZY Inc. ``as is'' and any
> 	    express or implied warranties, including, but not limited to,
> 	    the implied warranties of merchantability and fitness for a
> 	    particular purpose are disclaimed.  In no event shall the
> 	    regents or contributors be liable for any direct, indirect,
> 	    incidental, special, exemplary, or consequential damages
> 	    (including, but not limited to, procurement of substitute
> 	    goods or services; loss of use, data, or profits; or business
> 	    interruption) however caused and on any theory of liability,
> 	    whether in contract, strict liability, or tort (including
> 	    negligence or otherwise) arising in any way out of the use of
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> 	    damage.

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