Perhaps this is relevant:
When you try to install an update for the .NET Framework 1.0, 1.1, 2.0, 3.0,
or 3.5, you may receive Windows Update error code "0x643" or Windows
Installer error code "1603"
http://support.microsoft.com/kb/923100
--
Disclaimer: The information has been posted "as is" with no warranties or
guarantees and doesn''t give any rights.
"AllenBrand" wrote:
> I keep getting a notice for this update, but then it fails to install. This
> is the message I receive when it says the install has failed: Update to .NET
> Framework 3.5 Service Pack 1 for the .NET Framework Assistant 1.0 x86
> (KB963707)
>
> I am having difficulty installing an HP printer on my ethernet. Could this
> be related? What should I do about this failed update?
>
> I am running Home Edition of Windows XP with Service Pack 3 installed.
> --
> AllenBrand