Index: /trunk/include/iprt/err.h
===================================================================
--- /trunk/include/iprt/err.h	(revision 23692)
+++ /trunk/include/iprt/err.h	(revision 23693)
@@ -603,4 +603,6 @@
 /** Return instigated by a callback or similar. */
 #define VINF_CALLBACK_RETURN                88
+/** Authentication failure. */
+#define VERR_AUTHENTICATION_FAILURE         (-89)
 /** @} */