DOCUMENT:Q260103  20-AUG-2001  [vbwin]
TITLE   :FIX: IDE Memory Leak on Form Run/Stop in Visual Basic 6
PRODUCT :Microsoft Visual Basic for Windows
PROD/VER:WINDOWS:6.0,6.0 SP4,6.0 sp1, sp2, sp3
OPER/SYS:
KEYWORDS:kbVBp600 kbVBp600bug kbVS kbVS600 kbVS600bug kbFAQ MSGRAPH kbVBp600FAQ kbVS600sp4fix kb

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

 - Microsoft Visual Basic Professional Edition for Windows, version 6.0 
 - Microsoft Visual Basic Enterprise Edition for Windows, version 6.0 
-------------------------------------------------------------------------------

SYMPTOMS
========

When you are programming in Visual Basic 6.0 and you use the following code, the
code leaks 8 KB per button click as observed from the Windows NT Task Manager.

   Private Sub Command1_Click()
            For i = 1 To 5
               Load Winsock1(1)
               Unload Winsock1(1)
               DoEvents 'does not cause problem but helps
                        'to allow idle time so you can stop application.
            Next i    
   End Sub

CAUSE
=====

There is a memory leak in the code and related system files.

RESOLUTION
==========

Install the latest service pack for Visual Studio 6.0.

STATUS
======

Microsoft has confirmed this to be a bug in the Microsoft products listed at the
beginning of this article. This bug was corrected in the latest service pack for
Visual Studio 6.0.

For additional information about Visual Studio service packs, click the article
numbers below to view the articles in the Microsoft Knowledge Base:

   Q194022 INFO: Visual Studio 6.0 Service Packs, What, Where, Why

   Q194295 HOWTO: Tell That a Visual Studio Service Pack Is Installed

You can download the latest Visual Studio service pack from the following
Microsoft Web site:

   Visual Studio Product Updates
   (http://msdn.microsoft.com/vstudio/downloads/updates.asp)

MORE INFORMATION
================

NOTE: The integrated development environment (IDE) contains a memory leak on
Form Run/Stop. This was a previous Winsock control (Service Pack 2) memory leak
on load/unload.

Additional query words: VSSP4, vssetup

======================================================================
Keywords          : kbVBp600 kbVBp600bug kbVS kbVS600 kbVS600bug kbFAQ MSGRAPH kbVBp600FAQ kbVS600sp4fix kbVS600sp5fix 
Technology        : kbVBSearch kbAudDeveloper kbZNotKeyword6 kbZNotKeyword2 kbVB600Search kbVB600
Version           : WINDOWS:6.0,6.0 SP4,6.0 sp1, sp2, sp3
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 2001.