If you need to perform in Microsoft Windows the equivalent of a symlink to /dev/null in Linux you would open andan administrator's cmd and type:
For files:
mklink c:\path\to\file.ext NUL: Or, for directories:
mklink /D c:\path\to\dir NUL: This will keep the file/direcotry always at 0 byte, and still return success to every write attempt.