static L<S> sendToVMsRunningProgram(S progID, S text, O... args) {
  new L<S> answers;
  for (DialogIO io : talkToAllVMs()) {
    try {
      S pID = io.ask("what is the main program id?");
      if (sameSnippetID(pID, progID))
        answers.add(io.ask(format(text, args)));
    } finally {
      io.close();
    }
  }
  ret answers;
}