DOCUMENT:Q171556  05-SEP-1997  [vbwin]
TITLE   :FIX: VB5 IDE Causes Exception Violation During Unload of Form
PRODUCT :Microsoft Visual Basic for Windows
PROD/VER:5.0
OPER/SYS:WINDOWS
KEYWORDS:vb5all VBKBCtrl VS97FixlistSP2 VB5FixlistSP2

======================================================================
------------------------------------------------------------------
---
The information in this article applies to:

 - Microsoft Visual Basic Control Creation, Learning,
Professional, and
   Enterprise Editions for Windows, version 5.0
------------------------------------------------------------------
---

SYMPTOMS
========

During unloading of a form, the following error occurs:

   "VB5.EXE Exception: Access Violation (0x00000005), Address:
0x005805DB"

CAUSE
=====

The problem is caused when an MFC-based control is within a
Container
Control and that MFC control's Visible property is set to False.

STATUS
======

Microsoft has confirmed this to be a bug in the Microsoft products
listed
at the beginning of this article. This bug has been fixed in
Visual Studio
97 Service Pack 2.

For more information on the Visual Studio 97 Service Pack 2,
please see the
following article in the Microsoft Knowledge Base:

   ARTICLE-ID: Q170365
   TITLE     : INFO: Visual Studio 97 Service Packs - What, Where,
and Why

For a list of the Visual Basic 5.0 bugs that were fixed in the
Visual
Studio 97 Service Pack 2, please see the following article in the
Microsoft
Knowledge Base:

   ARTICLE-ID: Q171554
   TITLE     : INFO: Visual Basic 5.0 Fixes in Visual Studio 97
               Service Pack 2
======================================================================
Keywords          : vb5all VBKBCtrl VS97FixlistSP2 VB5FixlistSP2
Version           : 5.0
Platform          : WINDOWS
Issue type        : kbbug
Solution Type     : kbfix

=============================================================================

THE INFORMATION PROVIDED IN THE MICROSOFT KNOWLEDGE BASE IS
PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND.  MICROSOFT DISCLAIMS
ALL WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES
OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.  IN NO
EVENT SHALL MICROSOFT CORPORATION OR ITS SUPPLIERS BE LIABLE FOR
ANY DAMAGES WHATSOEVER INCLUDING DIRECT, INDIRECT, INCIDENTAL,
CONSEQUENTIAL, LOSS OF BUSINESS PROFITS OR SPECIAL DAMAGES, EVEN IF
MICROSOFT CORPORATION OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE
POSSIBILITY OF SUCH DAMAGES.  SOME STATES DO NOT ALLOW THE EXCLUSION
OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES
SO THE FOREGOING LIMITATION MAY NOT APPLY.

Copyright Microsoft Corporation 1997.