Is warning message legit?

[Guest]

Several times I have had a window headed Microsoft Internet Explorer pop up
with the following message:
"Notice: If your computer has errors in the registry database or
file system, it could cause unpredictable or erratic behavior, freezes and
crashes.
Finding these errors can increase your computer's performance and
prevent datea loss.
Would you like to install WinFixer2006 to check your computer for
free. (Recommended)"

When hitting "Cancel", two or three subsequent WinFixer2006 windows
appear with persistence until they are all x-ed out. Is this a legitimate
Microsoft message, a third party help, or what?
RSR

 

[PA Bear]

You're ALREADY infected with Vundo!

Checking for/Help with Hijackware
http://aumha.org/a/parasite.htm
http://aumha.org/a/quickfix.htm
http://aumha.net/viewtopic.php?t=5878
http://wiki.castlecops.com/Malware_Removal_and_Prevention:_Introduction
http://mvps.org/winhelp2002/unwanted.htm
http://inetexplorer.mvps.org/data/prevention.htm
http://inetexplorer.mvps.org/archive/tshoot.html
http://www.mvps.org/sramesh2k/Malware_Defence.htm
http://defendingyourmachine.blogspot.com/
http://www.elephantboycomputers.com/page2.html#Removing_Malware

When all else fails, HijackThis v1.99.1
(http://aumha.net/downloads/hijackthis.zip) is the preferred tool to use.
It will help you to both identify and remove any hijackware/spyware. **Post
your log to http://forums.spybot.info/forumdisplay.php?f=22,
http://castlecops.com/forum67.html,
http://forums.subratam.org/index.php?showforum=7,
http://aumha.net/viewforum.php?f=30, or other appropriate forums for expert
analysis, not here.**