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Items in pnews.paradox-discussions

Subject:Re: Interesting Paradox for Windows Permissions issue
Date:Tue, 26 Sep 2017 16:30:57 -0500
From:Mark Bannister <markRemove@THISinjection-moldings.com>
Newsgroups:pnews.paradox-discussions
Leslie's suggestion to install paradox outside of the programs seems to 
be a better option (and for all users)  .
news://pnews.thdebcommunity.com:119/59b0ad53@pnews.thedbcommunity.com

That fixed elevated permission issues for me.

On 9/26/2017 3:15 PM, Steven Green wrote:
> so always "install for all users", if given the option?
> 
> 
> -- 
> 
> Steven Green
> Myrtle Beach, South Carolina, USA
> 
> http://www.OasisTradingPost.com
> 
> Collectibles and Memorabilia
> Vintage Lego Sets and Parts
> - and Paradox support, too
> "Leslie"  wrote in message news:59c9a3e1@pnews.thedbcommunity.com...
> 
> Hi All,
> 
> I thought I would document this for future reference.....
> 
> Although we do not actually use Paradox for Windows, one of our Clients 
> does
> for another application.
> 
> Things have been fine at that site for over 5 years, but they just had a 
> new
> machine installed running Windows 10.
> 
> This machine is a shared workstation used by two part-time workers in a job
> share scenario - they have their own Windows Logins.
> 
> Anyway, our application runs perfectly fine without any problems, but since
> installation the Paradox application does not work correctly giving all
> sorts of random BDE errors. Their IT person was clueless and so they asked
> us to have a look.
> 
> What we found is sort of interesting, one User account was running Paradox
> elevated and the other was not. Our application always runs unelevated (as
> it should).
> 
> As you probably guessed the issue is related to permissions, plus poor
> application design. So the first problem is that the Paradox Application's
> PRIV location is not private per user but private to the workstation.
> Perfectly fine for a one person machine and possibly fine in this case as
> well were it not for one of them running it elevated.
> 
> Essentially, when the lck files in the PRIV directory get created, they get
> the permissions of the current user. If these files do not get deleted when
> Paradox exits, and the other User runs Paradox, they get a BDE error 
> because
> they do not have the correct permissions to access the lck files. Delete 
> the
> lck files manually and the problem goes away.
> 
> But then we saw another problem, and this time it was to do with our
> application running (unelevated) in parallel with Paradox (elevated). The
> same permissions problem occurs with the default net file - the one in
> C:\BDE32\NetDir (in our case).
> 
> Obviously the solution was to stop running Paradox elevated - we knew it
> worked unelevated because the other account did. But we simply could not 
> get
> it working under this particular user account. So we created a new user
> account and sure enough it ran unelevated there as well. So we transferred
> everything over and deleted the original User account.
> 
> The only thing that was different about the User account that forced 
> Paradox
> elevated was that this was the account that originally installed the 
> Paradox
> application. But we had no time to investigate any further because as usual
> once it is working the Client does not care once the problem goes away. 
> Time
> is money etc etc etc
> 
> 
> So as I pondered about this theoretically in another thread somewhere, we
> now have real world proof........ Running Paradox for Windows elevated is
> not good at all when it is in a shared environment, i.e. other BDE or
> Paradox applications or even User accounts.
> 
> All effort must be made to ensure that Paradox for Windows runs ***
> unelevated *** so that you do not run into weird permissions issues down 
> the
> track which can bring other applications screaming to a halt. Or to put it
> another way, if you are having to run Paradox For Windows elevated, you 
> have
> problem which may or may not bite you later on.
> 
> FWIW
> Leslie.
> 
> 
> 


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