<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def _GetFilePaths(self, path, pathtype, kb):
 """Guess windows filenames from a commandline string."""


    environ_vars = artifact_utils.GetWindowsEnvironmentVariablesMap(kb)
    path_guesses = path_detection_windows.DetectExecutablePaths([path],
                                                                environ_vars)

    if not path_guesses:
      # TODO(user): yield a ParserAnomaly object
      return []

    return [
        rdf_paths.PathSpec(path=path, pathtype=pathtype)
        for path in path_guesses
    ]