how to copy files over the network?

what dos command and syntax would I use to copy files over a home network? lets say I had a computer called "laptop" and one called "desktop" both on 192.168.1.xxx   Both computers are running xp.

any help is greatly appreciated.

thanx to all who replied...i figured it out myself.
1. share the directories on the server computer.
2. map drives on the client

so now "z:" now points to \\desktop\blah\blah\blah
            "y:" now points to \\desktop\blah\
create batch file.

copy z:\*.* c:\blah\blah
copy y:\*.exe c:\blah