Error code 0x643 trying to installlatest .net update

I've been trying to install the latest .net auto-update for about a week, and
it keeps failing. The history log says error code: 0x643, about which there
is nothing in the knowledge base.

Security Update for Microsoft .NET Framework, Version 2.0 (KB917283)

Help! What's happening?

ThosRTanner <> wrote:

> I've been trying to install the latest .net auto-update for about a
> week, and it keeps failing. The history log says error code: 0x643,
> about which there is nothing in the knowledge base.
>
> Security Update for Microsoft .NET Framework, Version 2.0 (KB917283)

Search this newsgroup for 917283 for suggestions.

Or try this:

The following is a revised version of an earlier post by TKang:

Note:
a. Some ATI VGA users may need to disable/exit the Catalyst Control Center
(which uses .NET) before updating the framework.
b. Users of Windows Live OneCare must disable that application before
removing or updating the Framework.

1: Turn automatic updates off.

2: Download .NET 2.0 (for 32-Bit) at this link:
http://www.microsoft.com/downloads/d...displaylang=en

OR

2a: Download .NET 2.0 (for 64-Bit) at this link:
http://www.microsoft.com/downloads/d...displaylang=en

3: Use control panel Add/Remove Programs to uninstall Microsoft .NET
Framework, Version 2.0 and reboot. Do not touch .NET Framework 1.1.

3a: see note below at step 7.

4: Install Microsoft .NET Framework, Version 2.0 (for 32-bit: dotnetfx.exe
3/22/2006) or (for 64-bit: NetFx64.exe 3/30/2006) and reboot.

5: Then run MS Update (and install KB917283) then reboot.

6: Turn automatic updates on (assuming that is your preference).

7. If this procedure failed to allow update 917283 to work, then repeat the
procedure, adding the following at step 3a:
Download http://astebner.sts.winisp.net/Tools...eanup_tool.zip and
unzip it. Run the enclosed application, and select to clean up .NET
Framework 2.0. Now continue above from step 4.

--
Robin Walker [MVP Networking]