diff --git a/winsup/cygwin/pinfo.cc b/winsup/cygwin/pinfo.cc
index b294130d7..0ffd00edd 100644
--- a/winsup/cygwin/pinfo.cc
+++ b/winsup/cygwin/pinfo.cc
@@ -66,7 +66,6 @@ set_myself (pid_t pid, HANDLE h)
   (void) GetModuleFileName (NULL, myself->progname, sizeof (myself->progname));
   if (!strace.active)
     strace.hello ();
-  InitializeCriticalSection (&myself->lock);
   return;
 }
 
@@ -231,227 +230,6 @@ pinfo::init (pid_t n, DWORD flag, HANDLE in_h)
   destroy = 1;
 }
 
-bool
-_pinfo::alive ()
-{
-  HANDLE h = OpenProcess (PROCESS_QUERY_INFORMATION, false, dwProcessId);
-  if (h)
-    CloseHandle (h);
-  return !!h;
-}
-
-extern char **__argv;
-
-void
-_pinfo::commune_recv ()
-{
-  DWORD nr;
-  DWORD code;
-  HANDLE hp;
-  HANDLE __fromthem = NULL;
-  HANDLE __tothem = NULL;
-
-  hp = OpenProcess (PROCESS_DUP_HANDLE, false, dwProcessId);
-  if (!hp)
-    {
-      sigproc_printf ("couldn't open handle for pid %d(%u)", pid, dwProcessId);
-      hello_pid = -1;
-      return;
-    }
-  if (!DuplicateHandle (hp, fromthem, hMainProc, &__fromthem, 0, false, DUPLICATE_SAME_ACCESS))
-    {
-      sigproc_printf ("couldn't duplicate fromthem, %E");
-      CloseHandle (hp);
-      hello_pid = -1;
-      return;
-    }
-
-  if (!DuplicateHandle (hp, tothem, hMainProc, &__tothem, 0, false, DUPLICATE_SAME_ACCESS))
-    {
-      sigproc_printf ("couldn't duplicate tothem, %E");
-      CloseHandle (__fromthem);
-      CloseHandle (hp);
-      hello_pid = -1;
-      return;
-    }
-
-  CloseHandle (hp);
-  hello_pid = 0;
-
-  if (!ReadFile (__fromthem, &code, sizeof code, &nr, NULL) || nr != sizeof code)
-    {
-      /* __seterrno ();*/	// this is run from the signal thread, so don't set errno
-      goto out;
-    }
-
-  switch (code)
-    {
-    case PICOM_CMDLINE:
-      {
-	unsigned n = 1;
-	CloseHandle (__fromthem); __fromthem = NULL;
-	for (char **a = __argv; *a; a++)
-	  n += strlen (*a) + 1;
-	if (!WriteFile (__tothem, &n, sizeof n, &nr, NULL))
-	  {
-	    /*__seterrno ();*/	// this is run from the signal thread, so don't set errno
-	    sigproc_printf ("WriteFile sizeof argv failed, %E");
-	  }
-	else
-	  for (char **a = __argv; *a; a++)
-	    if (!WriteFile (__tothem, *a, strlen (*a) + 1, &nr, NULL))
-	      {
-		sigproc_printf ("WriteFile arg %d failed, %E", a - __argv);
-		break;
-	      }
-	  if (!WriteFile (__tothem, "", 1, &nr, NULL))
-	    {
-	      sigproc_printf ("WriteFile null failed, %E");
-	      break;
-	    }
-      }
-    }
-
-out:
-  if (__fromthem)
-    CloseHandle (__fromthem);
-  if (__tothem)
-    CloseHandle (__tothem);
-}
-
-#define PIPEBUFSIZE (16 * sizeof (DWORD))
-
-commune_result
-_pinfo::commune_send (DWORD code)
-{
-  HANDLE fromthem = NULL, tome = NULL;
-  HANDLE fromme = NULL, tothem = NULL;
-  DWORD nr;
-  commune_result res;
-  if (!pid || !this)
-    {
-      set_errno (ESRCH);
-      goto err;
-    }
-  if (!CreatePipe (&fromthem, &tome, &sec_all_nih, PIPEBUFSIZE))
-    {
-      sigproc_printf ("first CreatePipe failed, %E");
-      __seterrno ();
-      goto err;
-    }
-  if (!CreatePipe (&fromme, &tothem, &sec_all_nih, PIPEBUFSIZE))
-    {
-      sigproc_printf ("first CreatePipe failed, %E");
-      __seterrno ();
-      goto err;
-    }
-  EnterCriticalSection (&myself->lock);
-  myself->tothem = tome;
-  myself->fromthem = fromme;
-  myself->hello_pid = pid;
-  if (!WriteFile (tothem, &code, sizeof code, &nr, NULL) || nr != sizeof code)
-    {
-      __seterrno ();
-      goto err;
-    }
-
-  if (sig_send (this, __SIGCOMMUNE))
-    goto err;
-
-  bool isalive;
-  while ((isalive = alive ()))
-    if (myself->hello_pid <= 0)
-      break;
-    else
-      Sleep (0);
-
-  CloseHandle (tome);
-  tome = NULL;
-  CloseHandle (fromme);
-  fromme = NULL;
-
-  if (!isalive)
-    {
-      set_errno (ESRCH);
-      goto err;
-    }
-
-  if (myself->hello_pid < 0)
-    {
-      set_errno (ENOSYS);
-      goto err;
-    }
-
-  size_t n;
-  if (!ReadFile (fromthem, &n, sizeof n, &nr, NULL) || nr != sizeof n)
-    {
-      __seterrno ();
-      goto err;
-    }
-  switch (code)
-    {
-    case PICOM_CMDLINE:
-      res.s = (char *) malloc (n);
-      char *p;
-      for (p = res.s; ReadFile (fromthem, p, n, &nr, NULL); p += nr)
-	continue;
-      if ((unsigned) (p - res.s) != n)
-	{
-	  __seterrno ();
-	  goto err;
-	}
-      res.n = n;
-      break;
-    }
-  CloseHandle (tothem);
-  CloseHandle (fromthem);
-  goto out;
-
-err:
-  if (tome)
-    CloseHandle (tome);
-  if (fromthem)
-    CloseHandle (fromthem);
-  if (tothem)
-    CloseHandle (tothem);
-  if (fromme)
-    CloseHandle (fromme);
-  res.n = 0;
-out:
-  myself->hello_pid = 0;
-  LeaveCriticalSection (&lock);
-  return res;
-}
-
-char *
-_pinfo::cmdline (size_t& n)
-{
-  char *s;
-  if (!this || !pid)
-    return NULL;
-  if (pid != myself->pid)
-    {
-      commune_result cr = commune_send (PICOM_CMDLINE);
-      s = cr.s;
-      n = cr.n;
-    }
-  else
-    {
-      n = 1;
-      for (char **a = __argv; *a; a++)
-	n += strlen (*a);
-      char *p;
-      p = s = (char *) malloc (n);
-      for (char **a = __argv; *a; a++)
-	{
-	  strcpy (p, *a);
-	  p = strchr (p, '\0') + 1;
-	}
-      *p = '\0';
-    }
-  return s;
-}
-
 void
 pinfo::release ()
 {