You may try the steps under following article http://support.microsoft.com/kb/923100.
thanks
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I cannot installed the update for Microsoft.NET Framework 1.1 Service Pack 1. The error code E0434F4D always appear when I try to install the update.
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Answer accepted by question author
You may try the steps under following article http://support.microsoft.com/kb/923100.
thanks
uninstalling microsoft.NET framework 1.1 SP1 without affecting the performance of my computer