def chgrp(path, group):
    '''
    Change the group of a file

    Under Windows, this will do nothing.

    While a file in Windows does have a 'primary group', this rarely used
    attribute generally has no bearing on permissions unless intentionally
    configured and is only used to support Unix compatibility features (e.g.
    Services For Unix, NFS services).

    Salt, therefore, remaps this function to do nothing while still being
    compatible with Unix behavior. When managing Windows systems,
    this function is superfluous and will generate an info level log entry if
    used directly.

    If you do actually want to set the 'primary group' of a file, use ``file
    .chpgrp``.

    To set group permissions use ``file.set_perms``

    Args:
        path (str): The path to the file or directory
        group (str): The group (unused)

    Returns:
        None

    CLI Example:

    .. code-block:: bash

        salt '*' file.chpgrp c:\\temp\\test.txt administrators
    '''
    func_name = '{0}.chgrp'.format(__virtualname__)
    if __opts__.get('fun', '') == func_name:
        log.info('The function %s should not be used on Windows systems; see '
                 'function docs for details.', func_name)
    log.debug('win_file.py %s Doing nothing for %s', func_name, path)

    return None