Take a look at these articles:
Problems in Windows Explorer or the Windows shell after you install security update MS06-015 (15 Apr-06)
http://support.microsoft.com/default.aspx/kb/918165
and
http://www.microsoft.com/technet/sec.../ms06-015.mspx which has been updated 4-15-2006
--
Maurice N
MVP Windows - Shell / User
-----
"arco2005" wrote in message news

D98EE08-50DD-48B3-92E6-...
> Seems that there is a conflict with various anti-virus software and the
> latest Updates .... I was told by Microsoft to remove the file "Security
> Update for Windows XP (KB908531)" ... go to Control Panel, then Add/Remove
> Programs (make sure Updates box is ticked) and you will find the file down
> the bottom of the page ... they then went on to say that I shouldn't update
> until again until they had posted a patch (but didn't say when) ... Of course
> my desktop promptly updated during the night so woke the following morning to
> find the same problem so have switched off automatic updates until they fix
> the problem ....