Index: Dispatcher.c
===================================================================
--- Dispatcher.c	(revision 15250)
+++ Dispatcher.c	(working copy)
@@ -20,7 +20,13 @@
 #define INIT_CAR_VALUE 0x5AA55AA5
 
 typedef struct {
+  //
+  // Unused field, keep it as is.
+  //
   EFI_STATUS_CODE_DATA  DataHeader;
+  //
+  // PeimFileHandle
+  //
   EFI_HANDLE            Handle;
 } PEIM_FILE_HANDLE_EXTENDED_DATA;