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