Microsoft KB Archive/257630

= FIX: Exception Error Closing an Application Containing a CoolBar Control =

Article ID: 257630

Article Last Modified on 8/7/2007

-

APPLIES TO


 * Microsoft Visual Basic 6.0 Professional Edition
 * Microsoft Visual Basic 6.0 Enterprise Edition

-



This article was previously published under Q257630



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:

194022 INFO: Visual Studio 6.0 Service Packs, What, Where, Why

194295 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://msdn2.microsoft.com/en-us/vstudio/Aa718353.aspx



Steps to Reproduce Behavior
 Create a new Standard EXE project. Form1 is created by default. On the Project menu, select Components, choose the Microsoft Windows Common Controls-3 6.0, and then click OK. Add a CoolBar control to Form1.  Paste the following code into the code window of Form1: Private Sub Form_Unload(Cancel As Integer) End End Sub  Run the project in the Visual Basic IDE. Exit the form by clicking the X button, and note that no problem arises. 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.</li></ol>

Additional query words: sp4 GPF IPF

Keywords: kbbug kbctrl kbfix kbrebarctrl kbvs600sp4fix kbvs600sp5fix KB257630

-

[mailto:TECHNET@MICROSOFT.COM Send feedback to Microsoft]

© Microsoft Corporation. All rights reserved.