For some reason, robocopy would create directory under \Application Data recursively, something like the following:
New Dir 0C:\users\Administrator\AppData\Local\Application Data\Application Data\Application Data\Application Data\Application Data\Adobe\TypeSupport\
New Dir 2C:\users\Administrator\AppData\Local\Application Data\Application Data\Application Data\Application Data\Application Data\Adobe\TypeSupport\CS5\
Eventually, I got something like the following which I cannot delete because the path name is too long: