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Microsoft .net framework 1.1 installation problem

Well I know there is numerous posts about .net framework 1.1 installation failure,I have searched through a lot of them.I failed to resolve my  problem so I am posting this.when I try to install .net framework 1.1 redistributable package which I downloaded from here it installs  .net framework version 1.0.3705 then when I want to install .net framework 1.1 service pack 1 downloaded from here which has the file NDP1.1sp1-KB867460-X86.exe  it doesnt install showing the message  ''The upgrade patch can't be installed by the windows installer service because the program to be upgraded may be missing,or the upgrade patch may update a different version of the program.Verify that the program to be upgraded exists on your computer and that you have the correct upgrade patch.'' I have tried a lot of way to solve this including:using the stebner cleanup tool to erase all versions of framework then restarting  machine and reinstalling again but this way can't solve the problem,modifying registry etc.Other versions(1.0,2.0,3.0,3.5) are installing smoothly they are not creating problems only this fw 1.1.How can I resolve this issue.Please anyone help

2 Answers Found


Answer 1

Is it really necessary to have version 1.1?

Answer 2

Hi realgeek,

Welcome to MSDN forum.


Some clarification with you

What is your OS?


If your OS is Windows 7 or Vista, I would provide some suggestions with you.

- You could install the latest .NET framework  version (.NET Framework 3.5 SP1 or 4) on your machine.

- .NET Framework 3.5 SP1 is including .NET Framework 2.0 SP2 and 3.0 SP2.

- The .NET Framework 2.0 Service Pack 2 provides cumulative roll-up updates for customer reported issues found after the release of the .NET Framework 2.0.

- .NET Framework 1.1’s CLR and .NET Framework 2.0’s CLR are quite different.


If you have a special necessary for project, you could certainly install .NET Framework 1.1 on it.

You could refer the following link, which talks about how to install .NET Framework 1.1 on Windows 7.



Best Regards

Larcolais Gong

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