That must be a malware dll that you removed, but is still being called on startup. Because it can't be found, Windows gives this warning message.
Run MSCCNFIG from the Start>Run box, go to the Startup tab and uncheck the line that refers to this dll. It starts with something like rundll32. Then it won't be called.
Hope this helps.
i'm running XP on a dell laptop.
after many hours of running various scans to get rid of some trojans and spyware. i think i'm clean. however, on boot up i get the following error
c:\windows\system32\dfvlyhtex.dll can not be found.
what is dfvlyhtex.dll and how do i fix it.