Error message "C:\WINDOWS\system32\drivers\service.exe"

Hi!

I have this Toshiba laptop, running Windows XP Home Edition SP3, which lately, every time I login, prompts me with an error message saying Windows cannot find the path "C:\WINDOWS\system32\drivers\service.exe ".

I've run various virus and spyware removal programs, but can't get rid of this annoying message. Nothing else seems affected!

Don't know what else to do... Any suggestions?

Thanks in advance *