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Q257630: FIX: Exception Error Closing Application with CoolBar Control

Article: Q257630
Product(s): Microsoft Visual Basic for Windows
Version(s): 6.0
Operating System(s): 
Keyword(s): kbCtrl kbRebarCtrl kbVBp kbVBp600bug kbGrpDSVB kbDSupport kbVS600sp4fix kbVS600sp5fix
Last Modified: 03-FEB-2002

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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 
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SYMPTOMS
========

A Visual Basic application that has a CoolBar control crashes while exiting the
application. This occurs when there is an End statement in the unload event of
the form that hosts a CoolBar control. This behavior occurs only when running
the executable and does not happen in the Visual Basic integrated development
environment (IDE). The error message is similar to the following:

In the Windows 9x platform:

  This program has performed an illegal operation and will be shutdown.

Clicking on the Details button may reveal text similar to the following:

  PROJECT1 caused an exception 10H in module MSVBVM60.DLL at 015f:66024d53.

In Windows NT or Windows 2000 platform, the following error message appears:

  Form1:Project1.exe - Application Error
  The exception Floating-point inexact result.
  (0xc000008f) occurred in the application at location 0x77f1d493.

STATUS
======

Microsoft has confirmed that this is a bug in the Microsoft products that are
listed at the beginning of this article. This bug was corrected in Service Pack
4 for Visual Studio 6.0.

For additional information about Visual Studio service packs, click the following
article numbers 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

To download the latest Visual Studio service pack, visit the following Microsoft
Web site:

  http://msdn.microsoft.com/vstudio/downloads/updates.asp

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

Steps to Reproduce Behavior
---------------------------

1. Create a new Standard EXE project. Form1 is created by default.

2. On the Project menu, select Components, choose the Microsoft Windows Common
  Controls-3 6.0, and then click OK.

3. Add a CoolBar control to Form1.

4. Paste the following code into the code window of Form1:

  Private Sub Form_Unload(Cancel As Integer)
      End
  End Sub

5. Run the project in the Visual Basic IDE. Exit the form by clicking the X
  button, and note that no problem arises.

6. Compile the project and run the EXE outside the Visual Basic IDE. Click the X
  button to exit the application, and note the Application error.

Additional query words: sp4 GPF IPF

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Keywords          : kbCtrl kbRebarCtrl kbVBp kbVBp600bug kbGrpDSVB kbDSupport kbVS600sp4fix kbVS600sp5fix 
Technology        : kbVBSearch kbAudDeveloper kbZNotKeyword6 kbZNotKeyword2 kbVB600Search kbVB600
Version           : :6.0
Issue type        : kbbug
Solution Type     : kbfix

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