Spool32.exe – Entry Point Not Found

I am running a Windows XP Professional machine and when I turn it on I get the message:

Spool32.exe – Entry Point Not Found
The procedure entry point RegisterServiceProcess could not be located in the dynamic link library KERNEL32.dll

Does anyone know of a way of fixing this error? I am not sure why it is not coming up. I thought the spool was for printing but I am still able to print.
Thank you.