Microsoft KB Archive/129434

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MXL5: Application.Quit in Auto_Open Sub Causes Computer to Hang

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The information in this article applies to:


 * Microsoft Excel for the Macintosh, versions 5.0, 5.0a
 * Microsoft Excel for the Power Macintosh, versions 5.0, 5.0a

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SYMPTOMS
In the versions of Microsoft Excel listed at the beginning of this article, if you open a workbook that contains an Auto_Open subroutine that contains the following line of code

  Application.Quit Microsoft Excel may stop responding (hang) with either a type 1 error or a type 11 error, depending on whether you are running Microsoft Excel for the Macintosh or Microsoft Excel for the Power Macintosh.

WORKAROUND
To work around this problem, do either of the following:

 Do not use Application.Quit in the Auto_Open subroutine  Instead of using a single Auto_Open subroutine, include an Application.OnTime command in your Auto_Open subroutine. This command should be set up in such a way that it executes another subroutine after the Auto_Open subroutine has completed execution. This other subroutine contains the Application.Quit command. For example, instead of using this         Sub Auto_Open MsgBox "This is a test." Application.Quit End Sub use this: Sub Auto_Open Application.OnTime Now + TimeValue("00:00:02"), "QuitMSExcel" End Sub

Sub QuitMSExcel MsgBox "This is a test." Application.Quit End Sub Using Application.OnTime to indirectly call the subroutine containing Application.Quit allows you to avoid hanging your computer. If the Auto_Open subroutine contains Application.Quit, or if the Auto_Open subroutine directly executes a macro that contains the Application.Quit command, your computer will hang. 

STATUS
Microsoft has confirmed this to be a problem in the Microsoft products listed at the beginning of this article. This problem was corrected in Microsoft Excel 98 Macintosh Edition.

MORE INFORMATION
Microsoft provides programming examples for illustration only, without warranty either expressed or implied, including, but not limited to, the implied warranties of merchantability and/or fitness for a particular purpose. This article assumes that you are familiar with the programming language being demonstrated and the tools used to create and debug procedures. Microsoft support professionals can help explain the functionality of a particular procedure, but they will not modify these examples to provide added functionality or construct procedures to meet your specific needs. If you have limited programming experience, you may want to contact the Microsoft fee-based consulting line at (800) 936-5200. For more information about the support options available from Microsoft, please see the following page on the World Wide Web:

"http://www.microsoft.com/support/supportnet/overview/overview.asp" The following is an example of an Auto_Open subroutine that will cause Microsoft Excel 5.0 to hang when the workbook that contains it is opened:

  Sub Auto_Open Application.Quit End Sub If you open a workbook that contains this subroutine, you will receive one of the following error messages:

The application "unknown" has unexpectedly quit, because an error of type 1 occurred.

"-or-"

Sorry, a system error occurred.

"Microsoft Excel"

error type 11

and the computer will either restart or hang when you select the Restart button.

This error will not occur unless the subroutine is an Auto_Open subroutine. For example, when you run the following subroutine

  Sub Test Application.Quit End Sub an error will not occur unless the Test subroutine is directly called by an Auto_Open subroutine.

Additional query words: 5.00a auto open autoopen exit hang lock

Keywords : kbcode kbprg xlmac

Version : MACINTOSH:5.0,5.0a

Platform : MACINTOSH

Issue type : kbprb

Technology :