FIX: You receive the "fatal error C1509" error message when you compile a Microsoft Visual C++ application that contains a large function with exception handling enabled in Microsoft Visual Studio .NET 2003

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Article ID: 884888 - View products that this article applies to.
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When you compile a Microsoft Visual C++ application that contains a large function with exception handling enabled, you receive the following error message from the compiler:
fatal error C1509: compiler limit : too many exception handler states in function 'main'. simplify function
This problem occurs in Microsoft Visual Studio .NET 2003.


This problem occurs because of a limit on the number of exception handler states that you can have in a function in Visual Studio .NET 2003.


A supported hotfix is now available from Microsoft, but it is only intended to correct the problem that is described in this article. Only apply it to systems that are experiencing this specific problem. This hotfix may receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next Visual Studio .NET service pack that contains this hotfix.

To resolve this problem immediately, contact Microsoft Product Support Services to obtain the hotfix. For a complete list of Microsoft Product Support Services telephone numbers and information about support costs, visit the following Microsoft Web site:
Note In special cases, charges that are ordinarily incurred for support calls may be canceled if a Microsoft Support Professional determines that a specific update will resolve your problem. The usual support costs will apply to additional support questions and issues that do not qualify for the specific update in question.


No prerequisites are required.

Restart requirement

You do not have to restart your computer after you apply this hotfix.

Hotfix replacement information

This hotfix does not replace any other hotfixes.

File information

The English version of this hotfix has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in coordinated universal time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time tool in Control Panel.
   Date         Time   Version            Size    File name
   03-Sep-2004  08:11  13.10.4245.0    1,966,080  Feacp.dll        
   03-Sep-2004  01:35                      5,342  Feacp.lib
   03-Sep-2004  01:21  13.10.4245.0    2,211,840  C1xx.dll
   03-Sep-2004  01:21  13.10.4245.0      937,984  C1.dll


Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.


For additional information about the standard terminology that is used to describe Microsoft software updates, click the following article number to view the article in the Microsoft Knowledge Base:
824684 Description of the standard terminology that is used to describe Microsoft software updates


Article ID: 884888 - Last Review: May 15, 2006 - Revision: 2.2
  • Microsoft Visual Studio .NET 2003 Enterprise Developer
  • Microsoft Visual Studio .NET 2003 Enterprise Architect
  • Microsoft Visual Studio .NET 2003 Academic Edition
  • Microsoft Visual C++ .NET 2003 Standard Edition
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