robocopyでフォルダをバックアップ／同期させる － ＠IT
Windows Server 2003 Resource Kit Tools

ROBOCOPY "C:\Documents and Settings\user\My Documents\My Briefcase" "E:\My Documents\My Briefcase" /E /XO /XJ
ROBOCOPY "C:\work" "E:\My Documents\workspace" /E /XO /XJ /XD ".svn" /XF "*.mpg" /XF "*.wmv"

/E :: copy subdirectories, including Empty ones.
/XO :: eXclude Older files.
/XJ :: eXclude Junction points. (normally included by default).
/XD dirs [dirs]... :: eXclude Directories matching given names/paths.
/XF file [file]... :: eXclude Files matching given names/paths/wildcards.