The release version of a managed program may stop responding, and the CPU usage may increase to 100 percent in the .NET Framework 1.0

This article has been archived. It is offered "as is" and will no longer be updated.
When you run the release version of a managed program that was built with the Microsoft .NET Framework 1.0, the program may stop responding. Also, the CPU usage may increase to 100 percent. This problem does not occur if you run the debug version of the .NET Framework 1.0.
This problem may occur when the following conditions are true:
  • The application contains a method that has floating point arguments or volatile variables.
  • The floating point arguments or volatile variables are defined only one time in the method.
  • The method has more than 32 basic blocks.

Software update information

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 phone 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 must restart your computer after you apply this software update.

Software update replacement information

This software update does not replace any other software updates.

File information

The English version of this software update 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   --------------------------------------------------------------   05-Sep-2003  22:06  1.0.3705.456      200,704  Aspnet_isapi.dll     05-Sep-2003  22:06  1.0.3705.456       24,576  Aspnet_regiis.exe     05-Sep-2003  21:28  1.0.3705.456       69,632  Corperfmonext.dll     05-Sep-2003  21:26  1.0.3705.456      303,104  Mscorjit.dll        07-Sep-2003  21:23  1.0.3705.456    1,953,792  Mscorlib.dll        07-Sep-2003  21:21  1.0.3705.456      258,048  Mscorlib.resources.dll     05-Sep-2003  21:27  1.0.3705.456    2,273,280  Mscorsvr.dll        05-Sep-2003  21:27  1.0.3705.456    2,269,184  Mscorwks.dll        07-Sep-2003  21:23  1.0.3705.456    1,196,032  System.web.dll      07-Sep-2003  21:20  1.0.3705.456      135,168  System.web.resources.dll  
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
For additional information, 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: 828394 - Last Review: 10/26/2013 19:46:10 - Revision: 2.1

  • Microsoft .NET Framework 1.0
  • kbnosurvey kbarchive kbbug kbfix kbqfe kbnetframe100presp3fix kbhotfixserver KB828394