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Article ID: 926065 - Last Review: December 3, 2007 - Revision: 1.3
Error message when you install the Microsoft .NET Framework: "Configuration Error: Unable to load JIT compiler (MSCORJIT.DLL)"
When you install the Microsoft .NET Framework version 1.1 Service Pack 1 (SP1) or the .NET Framework version 1.0 Service Pack 3 (SP3), you may receive an error message that resembles the following:
SLxxx.tmp – Configuration Error
Configuration Error: Unable to load JIT compiler (MSCORJIT.DLL) File may be missing or corrupt.
Please check your setup or rerun setup!
You may also receive additional errors that mention any of the following files:
- Fusion.dll
- Mscorjit.dll
- Mscorlib.dll
- Mscorsn.dll
- Mscorwks.dll
- Perfcounter.dll
- Corperfmonext.dll
- Aspnet_isapi.dll
You may also receive these errors when you install Update Rollup 2 for Microsoft Windows XP Media Center Edition 2005 by using Windows Update. Update Rollup 2 automatically installs the .NET Framework version 1.1 and the .NET Framework version 1.1 SP1 if they are not already installed.
For more information about Update Rollup 2 for Windows XP Media Center Edition 2005, click the following article number to view the article in the Microsoft Knowledge Base:
900325Â
(http://kbalertz.com/Feedback.aspx?kbNumber=900325/
)
Update Rollup 2 for Windows XP Media Center Edition 2005
This problem may occur if there is a significant load on the computer when you start Setup. For example, the problem may occur if it takes longer than five seconds for Setup to start. The problem occurs because of a problem with Setup files for both the .NET Framework version 1.1 SP1
and the .NET Framework version 1.0 SP3.
You can safely ignore these errors. The errors do not indicate that there is a problem with Setup or with the computer. Setup will continue correctly.
To work around this problem, close all nonessential programs that are running on the computer before you start Setup for the .NET Framework version 1.1 SP1 or for the .NET Framework version 1.0 SP3.
Note If this problem occurs when you use the OEM recovery media to install Windows XP or Windows XP Media Center Edition 2005, restart the installation.
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.
Technical support for Media Center
Because Microsoft Windows XP Media Center Edition was included with your hardware device or system, the hardware manufacturer provides technical support and assistance for this software. Your manufacturer may have customized the installation by using unique components such as specific device drivers and optional settings to maximize the performance of the hardware. If you require technical help with Windows XP Media Center Edition, contact your manufacturer directly because the manufacturer is best qualified to support the software that the manufacturer installed on the hardware.
You can also visit the Windows XP Media Center Edition product information Web site at the following Microsoft Web site:
APPLIES TO
- Microsoft .NET Framework 1.1 Service Pack 1
- Microsoft .NET Framework 1.0 Service Pack 3
- Microsoft Windows XP Service Pack 2, when used with:
- Microsoft Windows XP Media Center Edition 2005
- Microsoft Windows XP Home Edition
- Microsoft Windows XP Professional
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