diff --git a/Python/pylifecycle.c b/Python/pylifecycle.c
index a17adf7..fa9ffae 100644
--- a/Python/pylifecycle.c
+++ b/Python/pylifecycle.c
@@ -1065,15 +1065,27 @@ error:
 static int
 is_valid_fd(int fd)
 {
-    int dummy_fd;
     if (fd < 0 || !_PyVerify_fd(fd))
         return 0;
-    _Py_BEGIN_SUPPRESS_IPH
-    dummy_fd = dup(fd);
-    if (dummy_fd >= 0)
-        close(dummy_fd);
-    _Py_END_SUPPRESS_IPH
-    return dummy_fd >= 0;
+#if defined(MS_WINDOWS) && defined(_MSC_VER) && (_MSC_VER >= 1700 && _MSC_VER < 1900)
+	 /* dup (DuplicateHandle) doesn't say fd is a valid *file* handle.
+	 * It could be a current thread pseudo-handle.
+	*/
+	{
+		struct stat buf;
+		if (fstat(fd, &buf) < 0 && (errno == EBADF || errno == ENOENT))
+			return 0;
+	}
+#else
+	{
+		int dummy_fd;
+		dummy_fd = dup(fd);
+		if (dummy_fd < 0)
+			return 0;
+		close(dummy_fd);
+	}
+#endif
+	return 1;
 }
 
 /* Initialize sys.stdin, stdout, stderr and builtins.open */