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Microsoft KB Archive/171528

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Knowledge Base


FIX: Using "Unload Me" in a Listbox Causes Crash

Article ID: 171528

Article Last Modified on 11/5/2003



APPLIES TO

  • Microsoft Visual Basic 5.0 Learning Edition
  • Microsoft Visual Basic 5.0 Professional Edition



This article was previously published under Q171528

SYMPTOMS

Attempting to unload the current form via the Unload statement in the ItemCheck event of a Listbox control may cause your application to terminate with the following error:

"VB5 caused an invalid page fault in module VB5.EXE at 0137:004b5923"

This problem may be intermittent and may only occur when running the project in the IDE (Integrated Development Environment).

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:

170365 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:

171554 INFO: Visual Basic 5.0 Fixes in Visual Studio 97 Service Pack 2


MORE INFORMATION

The Unload statement is used to close a specified form. If you use "Unload Me" in the ItemCheck event of a Listbox control, you may encounter the error stated above. The recommended procedure for unloading a form is to add the Unload statement to the Click event of a CommandButton or Menu control.

Keywords: kbbug kbfix kbvbp500sp2fix kbvs97sp2fix KB171528