Microsoft KB Archive/172107

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Knowledge Base

ATP Functions Return Error When Created Through Automation

Article ID: 172107

Article Last Modified on 10/11/2006


  • Microsoft Excel 97 Standard Edition
  • Microsoft Excel 95 Standard Edition

This article was previously published under Q172107


When you add an Analysis ToolPak function in a cell in a Microsoft Excel spreadsheet, the function returns the #NAME? error.


This problem occurs when the following conditions are true:

  • You create a Microsoft Excel spreadsheet created through Automation. -and-

  • You type an Analysis ToolPak function in a cell in the workbook.

This problem occurs even if the Analysis ToolPak add-in was selected in the Add-Ins dialog box during the previous session of Microsoft Excel.

When you use Automation to start the versions of Microsoft Excel listed at the beginning of this article, the Analysis ToolPak add-in is not loaded even if you previously loaded it or you loaded it by running a macro.


Microsoft provides programming examples for illustration only, without warranty either expressed or implied. This includes, but is not limited to, the implied warranties of merchantability or fitness for a particular purpose. This article assumes that you are familiar with the programming language that is being demonstrated and with the tools that are used to create and to debug procedures. Microsoft support engineers 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 requirements. To work around this problem, load the Analysis ToolPak. To do this, clear the check box for the add-in in the Add-Ins dialog box in Microsoft Excel or use code to unload it, and then use code to reload the add-in.

The following example is created in Visual Basic 4.0 and works with both versions of Microsoft Excel listed at the beginning of this article. With very little modification, you can use the code in Microsoft Access 97 and Microsoft Word 97. The sample code creates a Microsoft Excel workbook and places several Analysis ToolPak functions in cells. It does not make any difference whether the Analysis ToolPak is selected in the last session of Microsoft Excel. By using the Installed property of the AddIns class you allow the Analysis ToolPak to be unloaded, and then loaded through code.

  Sub Main()
   ' Declares all the variables to be used.
   Dim xlApp As Object     ' Will be used for the application object.
   Dim xlWB As Object      ' Will be used for the workbook object.
   Dim xlsheet As Object   ' Will be used for the spreadsheet object.

   ' Starts an instance of Microsoft Excel.
   Set xlApp = CreateObject("excel.application")

   ' Makes Microsoft Excel visible.
   xlApp.Visible = True

   ' Starts a new workbook.
   xlApp.workbooks.Add Template:="Workbook"

   ' Unloads and loads the Analysis Toolpak.
   xlApp.AddIns("Analysis ToolPak").Installed = False
   xlApp.AddIns("Analysis ToolPak").Installed = True

   ' Assigns the variables to their respective objects.
   Set xlWB = xlApp.ActiveWorkbook
   Set xlsheet = xlWB.activesheet

   ' Assigns formulas to cells on the spreadsheet.
   With xlsheet
       .range("A1").Formula = "1/1/97"
       .range("A2").Formula = "7/14/97"
       .range("A3").Formula = "=EDATE(R[-2]C,2)"
       .range("A4").Formula = "=EOMONTH(R[-3]C,3)"
       .range("A5").Formula = "=NETWORKDAYS(R[-4]C,R[-3]C,2)"
   End With

   ' Saves the file.
   xlApp.ActiveWorkbook.SaveAs filename:="C:\OLEtest.xls"

   ' Closes Microsoft Excel.

   ' Clears the variables
   Set xlsheet = Nothing
   Set xlWB = Nothing
   Set xlApp = Nothing
   End Sub

Open the Oletest.xls file to verify that values in cells A3:A5 are calculated without error.


Microsoft has confirmed this to be a problem in the Microsoft products listed at the beginning of this article.

Additional query words: XL97 OLE Analysis ToolPak XL

Keywords: kbbug kbdtacode kbprogramming KB172107