David,
I have just done a quick bit of research on this. It appears that it may not be malware/trojan/virus. It appears as it may be another Microsoft update/patch that does not work, and actually makes life a little harder for us.
Here are some links to have a look at.
http://answers.microsoft.com/en-us/w...c-68b599b31bf5
http://www.infoworld.com/article/285...x8004fe21.html
(There is an add that opens when you go to this link, wait the 20 seconds and it does go away)
http://www.sevenforums.com/windows-u...x8004fe21.html
http://www.sevenforums.com/windows-u...x8004fe21.html
The fix that seems easier to follow and may work (I have not had this error, so I cannot attest to its accuracy) appears to be the one from infoworld.
If this does not work then the people on sevenforums are normally very good to deal with.
I hope that this helps you.
Let me know how you go.
Cheers
Andrew