Brilliant, problem sorted.
I could not reregister the DLL using the run option but downloaded the DLL
from kb924191 and that worked.
For the record I was having lots of problems with software until I removed
three separate installs of MSXML4.DLL using contral panel add/remove. That
sorted most problems and the last problem with Updater resolved by this fix
here.
Thank you.

--
Cheers Andrew L


"TaurArian" wrote:

> Some have reported that simply re-registering the MSXML3.DLL seems to fix the problem.
> 1. Click Start.
> 2. Choose Run.
> 3. In the Run box, type: regsvr32 MSXML3.DLL
> Press okay
>
> If that hasn't helped you may need to re-registered some more files:
>
> 1. Click Start.
> 2. Choose Run.
> 3. In the Run box, type (pressing okay after each one) :-
>
> net stop wuauserv
>
> Repeat for the following:
> regsvr32 wuapi.dll
> regsvr32 wups.dll
> regsvr32 wuaueng.dll
> regsvr32 wuaueng1.dll
> regsvr32 wucltui.dll
> regsvr32 wuweb.dll
> regsvr32 MSXML3.dll
> regsvr32 qmgr.dll
> regsvr32 qmgrprxy.dll
> regsvr32 jscript.dll
>
> net start wuauserv
>
>
> --
>
> TaurArian [MVP] 2005-2008 - Update Services
> http://taurarian.mvps.org
> ======================================
> How to ask a question: http://support.microsoft.com/kb/555375
> Computer Maintenance: Acronis / Diskeeper / Paragon / Raxco
>
>
> "AndrewL" <AndrewL@discussions.microsoft.com> wrote in message
> news:E952505F-500B-4902-AE23-E6755C4B9A02@microsoft.com...
> |I can not use Windows Update service at the moment, the update page results
> | in the messge :- "Files required to use Microsoft Update are no longer
> | registered or installed on your computer. To continue:"
> | When I use the "Register or reinstall the files for me now (Recommended)"
> | option it performs a download and a registry process but just loops back to
> | the same page.
> | Have tried the solution in article 943144 from knowledgbase but that did
> | not resolve.
> | Anyone Help ?
> | --
> | Cheers Andrew L
>
>
>