copy /y "C:\X\strange.txt" "D:\Y"
replace "C:\X\strange.txt" "D:\Y"

C:
cd \X\folder
xcopy "C:\X\*.*" "D:\Y" /d /e /q /c /y

xcopy "C:\Inetpub\wwwroot\wss\VirtualDirectories\12345" "D:\Y\80Wed" /d /e /q /c /y

pfeDllsforGAC

http://geekswithblogs.net/redwards/archive/2007/10/26/116365.aspx