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Re: Version 9 Trial contaminates Version 8 running paid version

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  • Subject: [mg131815] Re: Version 9 Trial contaminates Version 8 running paid version
  • From: Murray Eisenberg <murray at>
  • Date: Wed, 9 Oct 2013 22:10:27 -0400 (EDT)
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Does V8 still work as normal (except for that warning).

If so, then it's likely that the mathpass file, which contains the 
licensing information, is causing the _alleged_ problem.

At least if you used Mathematica's Preferences (Options on Windows as I 
recall) to use version-specific front end preferences -- and possibly in 
any case -- this plain-text file is in the folder:


Open that file in any plain-text editor and make the window wide enough 
so you see the entire long lines of the form

  machine-name    some-3-part-string-of-digits   activation-code   another-code     your-name

Each line represents one version of Mathematica, typically with the most-recently-installed version first. If that's the trial V9 you installed, then try moving the line for V8 back to the top, saving, restarting. That should avoid the annoying warning message.

In principle, Mathematica is supposed to "fall-through" a line until it finds the one appropriate, but I've at times had problems with this when running several versions.

On Oct 9, 2013, at 2:11 AM, E. Martin-Serrano <eMartinSerrano at> wrote:

> Hi,
> Now, I have realized that the notebooks created and running  under the V8
> paid version also display the legend Wolfram Mathematica -  PRODUCT
> So it is not only the Welcome Screen what has been contaminated by the
> trial V9 version.
> De: E. Martin-Serrano [mailto:eMartinSerrano at]
> Enviado el: martes, 8 de octubre de 2013 13:42
> Para: mathgroup at
> Asunto: Version 9 Trial contaminates Version 8 running paid version
> Hi,
> Last week, I downloaded and installed V9 Trial, which I have already
> uninstalled after only three days.
> It seems that, somehow, V9 was, conflicting with V8, which is the version I
> am currently running. I uninstalled the Trial V9 to check whether I could
> find the conflicting points with the idea of reinstalling V9 again to
> continue the V9 trial.
> However, to my surprise, after the V9 trial uninstallation,  the former V8
> version Welcome screen is warning that my V8 paid Mathematica is =a trial
> product and that there are 26 days left for it.
> I have used the Windows uninstall tool to get rid of Mathematica V9 Trial
> and probably there are some leftovers still working in the original V8
> system (a clear indication of that V9 is interfering with the paid V8 even
> after the trial V9  has been uninstalled). Besides, after finishing the
> uninstallation, Windows8  warned it could not uninstall the whole
> Mathematica V9 trial stuff so that I ought to move manually the trial V9
> kernel to the  recycle bin.
> I hope someone could provide some clue about what is going on before the my
> current 26 days v8 trial period is over
> Regards
> E. Martin-Serrano
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Murray Eisenberg                                    =
murray at
Mathematics & Statistics Dept.      
Lederle Graduate Research Tower           
University of Massachusetts 
710 North Pleasant Street  
Amherst, MA 01003-9305

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