--- a/src/os/win32/ngx_errno.c
+++ b/src/os/win32/ngx_errno.c
@@ -4,98 +4,14 @@
  */
 
 
-/*
- * TODO:
- *   add WSA error messages for NT and 98
- */
-
 #include <ngx_config.h>
 #include <ngx_core.h>
 
 
-static ngx_str_t  wsa_errors[] = {
-    ngx_string("An invalid argument was supplied"),      /* WSAEINVAL 10022 */
-    ngx_string("Too many open sockets"),                 /* WSAEMFILE 10023 */
-
-    ngx_null_string,                                               /* 10024 */
-    ngx_null_string,                                               /* 10025 */
-    ngx_null_string,                                               /* 10026 */
-    ngx_null_string,                                               /* 10027 */
-    ngx_null_string,                                               /* 10028 */
-    ngx_null_string,                                               /* 10029 */
-    ngx_null_string,                                               /* 10030 */
-    ngx_null_string,                                               /* 10031 */
-    ngx_null_string,                                               /* 10032 */
-    ngx_null_string,                                               /* 10033 */
-    ngx_null_string,                                               /* 10034 */
-
-    /* WSAEWOULDBLOCK 10035 */
-    ngx_string("A non-blocking socket operation could not be completed "
-               "immediately"),
-
-    ngx_null_string,                                               /* 10036 */
-    ngx_null_string,                                               /* 10037 */
-
-    /* WSAENOTSOCK 10038 */
-    ngx_string("An operation was attempted on something that is not a socket"),
-
-    ngx_null_string,                                               /* 10039 */
-    ngx_null_string,                                               /* 10040 */
-    ngx_null_string,                                               /* 10041 */
-
-    /* WSAENOPROTOOPT 10042 */
-    ngx_string("An unknown, invalid, or unsupported option or level was "
-               "specified in a getsockopt or setsockopt call"),
-
-    ngx_null_string,                                               /* 10043 */
-    ngx_null_string,                                               /* 10044 */
-    ngx_null_string,                                               /* 10045 */
-    ngx_null_string,                                               /* 10046 */
-    ngx_null_string,                                               /* 10047 */
-    ngx_null_string,                                               /* 10048 */
-    ngx_null_string,                                               /* 10049 */
-    ngx_null_string,                                               /* 10050 */
-    ngx_null_string,                                               /* 10051 */
-    ngx_null_string,                                               /* 10052 */
-    ngx_null_string,                                               /* 10053 */
-
-    /* WSAECONNRESET 10054 */
-    ngx_string("An existing connection was forcibly closed by the remote host"),
-
-    /* WSAENOBUFS 10055 */
-    ngx_string("An operation on a socket could not be performed because "
-               "the system lacked sufficient buffer space or "
-               "because a queue was full"),
-
-    /* WSAEISCONN 10056 */
-    ngx_string("A connect request was made on an already connected socket"),
-
-    /* WSAENOTCONN 10057 */
-    ngx_string("A request to send or receive data was disallowed because"
-               "the socket is not connected and (when sending on a datagram "
-               "socket using a sendto call) no address was supplied"),
-
-    ngx_null_string,                                               /* 10058 */
-    ngx_null_string,                                               /* 10059 */
-
-    /* WSAETIMEDOUT 10060 */
-    ngx_string("A connection attempt failed because the connected party "
-               "did not properly respond after a period of time, "
-               "or established connection failed because connected host "
-               "has failed to respond"),
-
-    /* WSAECONNREFUSED 10061 */
-    ngx_string("No connection could be made because the target machine "
-               "actively refused it")
-};
-
-
 u_char *
 ngx_strerror_r(ngx_err_t err, u_char *errstr, size_t size)
 {
-    int        n;
-    u_int      len;
-    ngx_err_t  format_error;
+    u_int  len;
 
     if (size == 0) {
         return errstr;
@@ -108,28 +24,8 @@ ngx_strerror_r(ngx_err_t err, u_char *er
                         (char *) errstr, size, NULL);
 
     if (len == 0) {
-        format_error = GetLastError();
-
-        if (format_error == ERROR_MR_MID_NOT_FOUND) {
-            n = err - WSAEINVAL;
-
-            if (n >= 0 && n <= WSAECONNREFUSED - WSAEINVAL) {
-                len = wsa_errors[n].len;
-
-                if (len) {
-                    if (len > size) {
-                        len = size;
-                    }
-
-                    ngx_memcpy(errstr, wsa_errors[n].data, len);
-
-                    return errstr + len;
-                }
-            }
-        }
-
         return ngx_snprintf(errstr, size,
-                            "FormatMessage() error:(%d)", format_error);
+                            "FormatMessage() error:(%d)", GetLastError());
     }
 
     /* remove ".\r\n\0" */