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From: bkmmd on 13 Jun 2010 07:36 Here's what works for me, and how I got there. Note that I'm a mac user, and don't have the patience for the long drawn up fixes. A long time ago, I ran into a similar problem. An old version of Norton Utilities found a several missing files in the .Net installations. I copied these files from backups, ran the updaters, and everything seemed to work. I also saved a copy of the missing files in case the problem recurred. It did. This time around, here's what was missing from my installation: C:\WINDOWS\Microsoft.NET\Framework\v1.1.4322\_dataperfcounters.h In the past, other files that have disappeared include C:\WINDOWS\Microsoft.NET\Framework\v1.1.4322\CORPerfMonSymbols.h After copying these files over, I ran Windows update, and the patch worked this time. Your results may vary. "sherlockomes" wrote: > Running : Windows XP media center edition SP3 > Have tried installing KB979906 a few times and also downloaded update > manually but cannot install this update. Receiving error 0x643.Is it safe to > uninstall the .NET Framework 1.1 and re-install as possibly corrupt , without > having to uninstall/re-install all other .NET frameworks 2 , 3 and 3.5 > including the updates that go with them? .. |