Have you checked this article?
http://support.microsoft.com/default...b;en-us;824643
How to troubleshoot Microsoft .NET Framework 1.1 installation issues
See: Manually remove and then reinstall the .NET Framework 1.1
"Basil Parmesan" wrote:
> Just checking back to see if anyone has a new idea. After installing the SP2
> update last September, I have been totally unable to install the .NET
> framework update. Microsoft technical support offered dozens of
> (unsuccessful) fixups for over 2 months and then gave up. Can't even
> uninstall the old versions. Attempted updates result only in error messages.
> --
> Regards,
>
> Basil P.