This error can occur after installing SP1 when you are running a non Microsoft visual style and the folder containing the customised styleshell.dll has a differing name from the themes name (as shown in the appearances tab).
To get rid of this error, you can switch back to a
Microsoft Theme or go to
c:\WINDOWS\Resources\Themes\<Name of theme in use> and rename the shell folder to the name of the visual style shown in the appearance tab. If you have a theme with multiple variations you
MUST make this change for each subfolder containing a differing
styleshell.dll file.
See:
http://www.hardwaregeeks.com/board/showthread.php?t=910
There is some malware that can generate this message at startup as well. Clean the computer of pests.
See, for example:
http://support.gateway.com/s/MISC/V...shootsu29.shtml
1. Open regedit (click
Start > Run > type "regedit" ) and go to key "
HOT_KEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon". There you will found the value "
UIHost". Change the data there to point to the full path of a valid logonui.exe. (C:\WINDOWS\system32\logonui.exe). Exit regedit.
2. And then Insert your xp installation disc and click on Start> Run> "
sfc /scannow" without the quoted and click on OK. (Please leave a space between sfc and /scannow and click on OK.)
3. Click on Start> Run> type "defrag c: -b" without the quote...after the defragmentation is completed, restart the pc.
p.s i assumed u're using Windows XP