Microsoft KB Archive/891109

= You cannot start the .NET Framework Configuration tool after you install the .NET Framework 1.0 Service Pack 3 =

PSS ID Number: 891109

Article Last Modified on 12/28/2004

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The information in this article applies to:

 Microsoft .NET Framework 1.0 SP3, when used with:  Microsoft Windows 2000 Professional

 Microsoft Windows 2000 Server

 Microsoft Windows 2000 Advanced Server 

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SYMPTOMS
You cannot start the Microsoft .NET Framework Configuration tool after you install the Microsoft .NET Framework 1.0 Service Pack 3. When you try to start the .NET Framework 1.0 Configuration tool, you receive the following error message:

MMC cannot open the selected file.

Note To run the .NET Framework 1.0 Configuration tool, follow these steps:
 * 1) Click Start, point to Settings, and then click Control Panel.
 * 2) Double-click Administrative Tools, and then double-click Microsoft .NET Framework Configuration.

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CAUSE
This problem occurs if you install the .NET Framework 1.0 Service Pack 3 on a computer that is running Microsoft Windows 2000.

When you install the .NET Framework 1.0 Service Pack 3, the .NET Framework 1.0 Service Pack 3 Setup program changes the Mscorcfg.msc file from Microsoft Management Console (MMC) version 1.2 format to MMC version 2.0 format. However, MMC version 2.0 format is not compatible with Windows 2000. Therefore, you cannot run the Mscorcfg.msc file after you install the .NET Framework 1.0 Service Pack 3 on a computer that is running Windows 2000.

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WORKAROUND
To work around this problem, replace the Mscorcfg.msc file with the MMC version 1.2 format of this file. The Mscorcfg.msc file is located in the following folder:

%WINDIR%\Microsoft.NET\Framework\v1.0.3705

To obtain the MMC version 1.2 format, use one of the following methods:  Method 1

Copy this file from a computer that is running the .NET Framework 1.0 Service Pack 2 or an earlier version of the .NET Framework 1.0.</li> Method 2

Obtain this file from Microsoft Product Support Services (PSS).

For additional information about how to contact PSS, visit the following Microsoft Web site:

http://support.microsoft.com

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Important Only replace this file on a computer that is running Windows 2000. Do not replace the Mscorcfg.msc file with an earlier version of the Mscorcfg.msc file on any computer that is running the .NET Framework 1.0 Service Pack 3 together with either of the following operating systems:
 * Microsoft Windows XP
 * Microsoft Windows XP Tablet PC Edition

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STATUS
Microsoft has confirmed that this is a problem in the .NET Framework 1.0 Service Pack 3.

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