Mark,
Not sure if you are serious about this question, or just jerking our chains.....
If you are serious, I apologize. It's just that this hardly seems an appropriate question for the 'Windows 2000 Server' forum....although most of the folks here should be able to tell you the answer:
Just wrap whatever path you have that contains spaces in quotes, i.e.
c:> xcopy "C:\Documents and Settings\Test" c:\backup
No offense, I hope....
MM
Martijn Middelplaats
CCDA, CCNA, MCSA, MCSE
martijn at middelplaats dot net