diff --git a/winsup/cygwin/ChangeLog b/winsup/cygwin/ChangeLog
index 8b0b4ea05..c5c012ca1 100644
--- a/winsup/cygwin/ChangeLog
+++ b/winsup/cygwin/ChangeLog
@@ -1,3 +1,7 @@
+2007-07-19  Corinna Vinschen  <corinna@vinschen.de>
+
+	* sec_helper.cc: Remove unused code.
+
 2007-07-19  Corinna Vinschen  <corinna@vinschen.de>
 
 	* autoload.cc (SetSecurityDescriptorControl): Drop.
diff --git a/winsup/cygwin/sec_helper.cc b/winsup/cygwin/sec_helper.cc
index 6667357a8..4fb6252bc 100644
--- a/winsup/cygwin/sec_helper.cc
+++ b/winsup/cygwin/sec_helper.cc
@@ -291,77 +291,6 @@ security_descriptor::free ()
   sd_size = 0;
 }
 
-#if 0 // unused
-#define SIDLEN	(sidlen = MAX_SID_LEN, &sidlen)
-#define DOMLEN	(domlen = INTERNET_MAX_HOST_NAME_LENGTH, &domlen)
-
-BOOL
-lookup_name (const char *name, const char *logsrv, PSID ret_sid)
-{
-  cygsid sid;
-  DWORD sidlen;
-  char domuser[INTERNET_MAX_HOST_NAME_LENGTH + UNLEN + 2];
-  char dom[INTERNET_MAX_HOST_NAME_LENGTH + 1];
-  DWORD domlen;
-  SID_NAME_USE acc_type;
-
-  debug_printf ("name  : %s", name ? name : "NULL");
-
-  if (!name)
-    return FALSE;
-
-  if (cygheap->user.domain ())
-    {
-      strcat (strcat (strcpy (domuser, cygheap->user.domain ()), "\\"), name);
-      if (LookupAccountName (NULL, domuser, sid, SIDLEN, dom, DOMLEN, &acc_type)
-	  && legal_sid_type (acc_type))
-	goto got_it;
-      if (logsrv && *logsrv
-	  && LookupAccountName (logsrv, domuser, sid, SIDLEN,
-				dom, DOMLEN, &acc_type)
-	  && legal_sid_type (acc_type))
-	goto got_it;
-    }
-  if (logsrv && *logsrv)
-    {
-      if (LookupAccountName (logsrv, name, sid, SIDLEN, dom, DOMLEN, &acc_type)
-	  && legal_sid_type (acc_type))
-	goto got_it;
-      if (acc_type == SidTypeDomain)
-	{
-	  strcat (strcat (strcpy (domuser, dom), "\\"), name);
-	  if (LookupAccountName (logsrv, domuser, sid, SIDLEN,
-				 dom, DOMLEN, &acc_type))
-	    goto got_it;
-	}
-    }
-  if (LookupAccountName (NULL, name, sid, SIDLEN, dom, DOMLEN, &acc_type)
-      && legal_sid_type (acc_type))
-    goto got_it;
-  if (acc_type == SidTypeDomain)
-    {
-      strcat (strcat (strcpy (domuser, dom), "\\"), name);
-      if (LookupAccountName (NULL, domuser, sid, SIDLEN, dom, DOMLEN,&acc_type))
-	goto got_it;
-    }
-  debug_printf ("LookupAccountName (%s) %E", name);
-  __seterrno ();
-  return FALSE;
-
-got_it:
-  debug_printf ("sid : [%d]", *GetSidSubAuthority ((PSID) sid,
-			      *GetSidSubAuthorityCount ((PSID) sid) - 1));
-
-  if (ret_sid)
-    memcpy (ret_sid, sid, sidlen);
-
-  return TRUE;
-}
-
-#undef SIDLEN
-#undef DOMLEN
-#endif //unused
-
 /* Index must match the correspoding foo_PRIVILEGE value, see security.h. */
 static const char *cygpriv[] =
 {