Microsoft KB Archive/171362

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Article ID: 171362

Article Last Modified on 11/23/2006


  • Microsoft Excel 97 Standard Edition

This article was previously published under Q171362


When you calculate a formula in the formula bar by pressing F9, you may receive the following error message:

This program has performed an illegal operation and will be shut down.
If the problem persists contact the program vendor.

If you click Details, you receive an error message similar to the following:

EXCEL caused an invalid page fault in module EXCEL.EXE at 0137:301b7f65.


This problem occurs when you do the following:

  • You create a custom function in a workbook and save the workbook as a Microsoft Excel add-in. -and-

  • You enter a formula that uses the user-defined function more than once. -and-

  • You select the cell that contains the formula. -and-

  • You click in the formula bar and press F9.


To correct this problem, install Microsoft Excel 97 Service Release 1 (SR-1).


Microsoft has confirmed this to be a problem in Microsoft Excel 97. This problem was corrected in Microsoft Excel SR-1.

For additional information about SR-1, please see the following article in the Microsoft Knowledge Base:

172475 OFF97: How to Obtain and Install MS Office 97 SR-1


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When you create a custom function in Microsoft Excel, you can save a workbook as an add-in by selecting the Microsoft Excel Add-In (*.xla) file type in the Save As dialog box. However, if you install the add-in in the Add-Ins dialog and use your user-defined function in a formula, Excel may close unexpectedly. This problem occurs if the formula refers to the custom function more than once. For example, the following formula causes Excel to fail when you select the formula in the formula bar and press F9 to calculate the formula:


Note that in this example, the custom function is the following:

   Function MyFunction(x as integer)
       MyFunction = x
   End Function

Additional query words: 97 XL97 ipf gpf crash sr1

Keywords: kbbug kberrmsg kbfix kbprogramming KB171362