static L<Int> windows_killAll(fS pattern, O... _) {
  ret windows_killAll(cicAsFunction(pattern), _);
}

static L<Int> windows_killAll(F1<S, Bool> f, O... _) {
  if (!isWindows()) fail("No Windows");
  new L<Int> pids;
  for (OSProcess p : oshi_listProcesses()) {
    S command = p.getCommandLine();
    if (f.get(command)) {
      int pid = p.getProcessID();
      pids.add(pid);
      print("Killing " + pid + ": " + command);
    }
  }
  windows_killProcesses(pids);
  ret pids;
}

Began life as a copy of #1009587