static L<Int> windows_killAll(fS pattern) {
  if (!isWindows()) fail("No Windows");
  L<S> lines = lines(loadTextFile(backtickToConsole("WMIC path win32_process get ProcessId,CommandLine")));
  S head = first(lines);
  int iPID = indexOfIgnoreCase(head, "ProcessId");
  int iCommand = indexOf(head, "CommandLine");
  new L<Int> pids;
  for (S s : dropFirst(lines)) {
    S command = grabUntilSpace(s.substring(iCommand));
    if (cic(command, pattern)) {
      int pid = parseFirstInt(s.substring(iPID));
      pids.add(pid);
      print("Killing " + pid + ": " + command);
    }
  }
  windows_killProcesses(pids);
  ret pids;
}

Began life as a copy of #1009616