Index: ntoskrnl/wmi/wmidrv.c
===================================================================
--- ntoskrnl/wmi/wmidrv.c	(revision 70322)
+++ ntoskrnl/wmi/wmidrv.c	(working copy)
@@ -439,7 +439,7 @@
     PWMI_SET_MARK Buffer,
     ULONG Length)
 {
-    UNIMPLEMENTED_DBGBREAK();
+    UNIMPLEMENTED;
     return STATUS_SUCCESS;
 }