import platform


def win_safe_path(path):
    """
    Remove leading 'slash' in Windows paths, which should be relative or begin with 
    a drive letter, not a slash.
    """
    if path is None or path == '':
        return None
    # Sometimes in Windows, you end up with a path like '/C:/foo/bar' --- not sure why.
    if platform.system().lower() == "windows":
        if path[0] in ["/", "\\"]:
            return path[1:]
    return path