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When you try to install the Microsoft .NET Framework 1.1 Service Pack 1 (SP1), you may receive the following error message:
Microsoft .NET Framework 1.1 Service Pack 1 (KB867460) cannot be installed because you have one or more hot fixes installed. Remove them and try again.
If you remove and reinstall the .NET Framework 1.1, you receive the same error message when you try to install the .NET Framework 1.1 SP1.
Note This behavior occurs when you try to install the .NET Framework 1.1 Service Pack 1 from Windows Update. It also occurs when you download the package from Microsoft Downloads and try to install it.
Important This section, method, or task contains steps that tell you how to modify the registry. However, serious problems might occur if you modify the registry incorrectly. Therefore, make sure that you follow these steps carefully. For added protection, back up the registry before you modify it. Then, you can restore the registry if a problem occurs. For more information about how to back up and restore the registry, click the following article number to view the article in the Microsoft Knowledge Base:
322756 How to back up and restore the registry in Windows
To resolve this problem, follow these steps:
Click Start, click Run, type regedit, and then click OK.
Locate and then click the following subkey in the registry: