xcopy source destination /s /e /Y
Mine just for testing looked like:
C:\My Documents\AIM>xcopy *.* ..\Test /s /e /Y
announce.lst
MSWINSCK.OCX
AIMFilter.exe
autokill.lst
config.ini
aim.zip
Test
Aim\hi
8 File(s) copied
/s copies all directories
/e copies all directories including empty ones(have to use /s with it)
/Y supressed all overwrite dialogs
Hope that helps.