cannot find fntldr.exe

Windows98,ie6.0,McAfee virus scan.when i startup, i get msg:”cannot find the file ‘fntldr.exe(or one of its components).Make sure the path and filename are correct and that all required lobraries are available”
after hit OK, get msg “Could not load or run ‘fntldr’.exe specified in the WIN.INI file. Make sure the file exists on your computer or remove the reference to it in the WIN.INI file
I press OK. After that everything runs OK. What’s the problem and how can I resolve it?