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Groups > comp.lang.basic.visual.misc > #1642

Re: Trapping Windows Error

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On Sun, 9 Dec 2012 08:14:31 -0000, "Ivar"
<ivar.ekstromer000@ntlworld.com> wrote:

>Hi All.
>
>Here's hoping the VB6 gurus are still monitoring this newsgroup.
>I recently updated an app of mine and distributed it to the end users.
>A Couple of users have reported a problem where the app will stop working 
>and a message comes up with:
>ProgName has encountered a problem and has to close
>Windows is searching for a solution.
>I can't replicate this problem on any machine I have access to, but I'm 
>fairly sure it's when the app calls the 'FreeLibrary' API of "kernel32"
>Because it seems to work for most users, I'm assuming some users have a 
>broken Kernel32.DLL
>
>Is it possible for a VB6 app to handle this kind of error?
>And of course, If so, How?
>
>Thanks for any pointers.
>
>Ivar 

Highly improbable that your Users have a "broken Kernel32.DLL". If
they did - they would be having a lot more issues than just with your
program.

Due to configuration differences and complexities of Windows
platforms, it is entirely possible while invoking an external process
or service to have success in one scenario, yet fail, with or without
error, in another.

As for capturing the error - assuming it is in fact your application
that is throwing the error, and that it is happening past 'startup' or
launch, then simply reengineer your application to not have any
unhandled exceptions, ie provide at least a "top" error handler for
all possible paths. This is seldom as time consuming nor complicated
as it might first appear.

[Tools such as MZ-Tools makes this instrumentation easier.]

Another way to get more accurate information on where an error is
coming from is to enable Dr. Watson - if Users are using Windows XP or
below. Or perhaps getting the Users to install and enable WinDbg if
using Vista or Windows 7/8.

-ralph

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Thread

Trapping Windows Error "Ivar" <ivar.ekstromer000@ntlworld.com> - 2012-12-09 08:14 +0000
  Re: Trapping Windows Error ralph <nt_consulting64@yahoo.com> - 2012-12-09 17:24 -0600
    Re: Trapping Windows Error "Ivar" <ivar.ekstromer000@ntlworld.com> - 2012-12-10 13:00 +0000
      Re: Trapping Windows Error Deanna Earley <dee.earley@icode.co.uk> - 2012-12-10 13:10 +0000
      Re: Trapping Windows Error "Tim Rude" <timrude.nospam@nospam.hotmail.com> - 2012-12-10 09:26 -0600
        Re: Trapping Windows Error "Ivar" <ivar.ekstromer000@ntlworld.com> - 2012-12-10 17:31 +0000
          Re: Trapping Windows Error "Tim Rude" <timrude.nospam@nospam.hotmail.com> - 2012-12-10 14:35 -0600
          Re: Trapping Windows Error Deanna Earley <dee.earley@icode.co.uk> - 2012-12-11 08:57 +0000
            Re: Trapping Windows Error Karl E. Peterson <karl@exmvps.org> - 2012-12-11 14:40 -0800
              Re: Trapping Windows Error Deanna Earley <dee.earley@icode.co.uk> - 2012-12-12 08:53 +0000
      Re: Trapping Windows Error Jim Mack <no-uce-ube@mdxi.com> - 2012-12-10 12:01 -0500
        Re: Trapping Windows Error "Ivar" <ivar.ekstromer000@ntlworld.com> - 2012-12-10 17:42 +0000
          Re: Trapping Windows Error Jim Mack <no-uce-ube@mdxi.com> - 2012-12-10 15:23 -0500
            Re: Trapping Windows Error "Ivar" <ivar.ekstromer000@ntlworld.com> - 2012-12-10 20:35 +0000
              Re: Trapping Windows Error "Thorsten Albers" <gudea@gmx.de> - 2012-12-10 20:48 +0000
              Re: Trapping Windows Error Jim Mack <no-uce-ube@mdxi.com> - 2012-12-10 15:51 -0500
                Re: Trapping Windows Error "Ivar" <ivar.ekstromer000@ntlworld.com> - 2012-12-10 21:52 +0000
                Re: Trapping Windows Error Jim Mack <no-uce-ube@mdxi.com> - 2012-12-10 17:37 -0500
                Re: Trapping Windows Error "Ivar" <ivar.ekstromer000@ntlworld.com> - 2012-12-11 05:39 +0000
                Re: Trapping Windows Error RW <RonW@no_domain.invalid> - 2012-12-11 15:12 -0500
                Re: Trapping Windows Error "Ivar" <ivar.ekstromer000@ntlworld.com> - 2012-12-12 05:57 +0000
                Re: Trapping Windows Error Deanna Earley <dee.earley@icode.co.uk> - 2012-12-12 08:54 +0000
                Re: Trapping Windows Error "Thorsten Albers" <gudea@gmx.de> - 2012-12-11 21:44 +0000
                Re: Trapping Windows Error GS <gs@somewhere.net> - 2012-12-10 18:30 -0500
      Re: Trapping Windows Error David Kerber <dkerber@WarrenRogersAssociates.invalid> - 2013-01-21 11:29 -0500

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