If you receive an error when executing an ESP, check for processes that might be using the same port number.
Use the netstat command to determine if the port number specified for XP Server is in use.
00:00000:00008:1997/09/10 12:52:53.03 kernel XP Server failed to start. Try bringing up XP Server manually. Check SQL Server documentation for more information on how to bring XP Server up.