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Re: Version 9 Trial contaminates Version 8 running paid version

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  • Subject: [mg131856] Re: Version 9 Trial contaminates Version 8 running paid version
  • From: Murray Eisenberg <murray at math.umass.edu>
  • Date: Fri, 18 Oct 2013 04:45:48 -0400 (EDT)
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  • References: <20131009061119.40E2A6A11@smc.vnet.net> <l352k8$ah7$1@smc.vnet.net> <20131017041714.6B9176A23@smc.vnet.net>

Amen!

The existing (mis)handling of mathpass is one of those things that should go in a "Mathematica Annoyances" list.

On Oct 17, 2013, at 12:17 AM, David Bailey <dave at removedbailey.co.uk> wrote:

> On 10/10/2013 03:15, John Fultz wrote:
>> The problem is that Mathematica 8 is picking up Mathematica 9's
>> activation information preferentially.  If you did nothing, after the
>> trial period expired, Mathematica 8 would revert to its normal behavior
>> (because the Mathematica 9 activation entry would be no good, so it
>> would just skip it).  But I'm guessing you don't want to wait 25 days
>> for that to happen.
>>
>> Take a look at the output of this:
>>
>> FilePrint[$PasswordFile]
>>
>> In all likelihood, you'll see two entries (or maybe more, but the first
>> two are probably the ones that matter); the first one will have an
>> activation key corresponding to your trial version, and the second with
>> an activation key corresponding to your version 8.
>>
>> You could simply flip them around with any text editor.  Or with
>> Mathematica.  This code should do the trick (the complexity in the code
>> is to preserve the position of some comment metadata that might be in
>> your password file).
>>
>> lines = Import[$PasswordFile, "Lines"];
>> lines = Split[lines,
>>    SameQ @@ StringMatchQ[{##}, StartOfString ~~ "%" ~~ __] &];
>> lines = Flatten[Reverse /@ lines];
>> Export[$PasswordFile, lines, "Lines"];
>>
>> Sincerely,
>>
>> John Fultz
>> jfultz at wolfram.com
>> User Interface Group
>> Wolfram Research, Inc.
>>
>
> John, Why doesn't Mathematica always scan the mathpass file for the most
> permissive password for the version of Mathematica being loaded? If it
> did this, in the case being discussed, it would find that the v8
> password was time unlimited, rather than use the limited access granted
> by the v9 password.
>
> David
>

---
Murray Eisenberg                                    
murray at math.umass.edu
Mathematics & Statistics Dept.      
Lederle Graduate Research Tower           
University of Massachusetts 
710 North Pleasant Street  
Amherst, MA 01003-9305








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