My system has been rock stable for over a year running Windows 98SE. Recently it has begun freezing in shutdown displaying an error box saying "This program has executed an illegal instruction". If I look at the details it says that LoadWC.exe in the Windows/System directory is responsible -- which I assume is the Microsoft close windows program. If I try to continue after the error box, Windows opens all sorts of programs that are not opened in startup -- Second Chance, NetMedic etc. The only way out is to manually power down and then let Disk Doctor run on rebooting. It shuts down normally half the time and fails half the time. I would appreciate any suggestions. I do not want to do a full reinstall if it can be avaoided.