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FIX: You receive an "Unhandled Exception" error message when you run an application that uses valid C code

This article has been archived. It is offered "as is" and will no longer be updated.
Some valid C code may compile correctly, and then may not run correctly. When you run the application, you may receive the following error message:
Unhandled Exception: System.InvalidProgramException:
This problem is related to JIT Optimization. If you use the following statements to turn off JIT Optimization in the .ini file for the application, the error does not occur:
[.NET Framework Debugging Control] GenerateTrackingInfo=1 AllowOptimize=0
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 Microsoft .NET Framework 1.0 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.

The English version of this hotfix has the file attributes (or later) 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   ---------------------------------------------------------   14-Dec-2002  01:54  1.0.3705.387    303,104  Mscorjit.dll   14-Dec-2002  12:51  1.0.3705.387  1,953,792  Mscorlib.dll   14-Dec-2002  01:54  1.0.3705.387  2,269,184  Mscorsvr.dll   14-Dec-2002  01:55  1.0.3705.387  2,269,184  Mscorwks.dll

Steps to reproduce the behavior

  1. Compile the following sample C code. Use the /clr switch.
    main(){	int i;	int *j=i;	*j = *j % (int)0x80000000;}
  2. Run the application. You receive the error message.

    Note If you do not use the /clr switch, the application runs correctly and you do not receive the error message.
For additional information about the terminology that is used to describe Microsoft product 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: 811672 - Last Review: 12/08/2015 01:49:24 - Revision: 3.4

Microsoft .NET Framework 1.0

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