Index: asm/genincdata.c
===================================================================
--- include/asm/genincdata.c	(revision 66661)
+++ include/asm/genincdata.c	(working copy)
@@ -2,6 +2,7 @@
 #include <psdk/ntverp.h>
 
 /* DDK/IFS/NDK Headers */
+#define _NTSYSTEM_
 #include <excpt.h>
 #include <setjmp.h>
 #include <ntdef.h>
Index: ddk/ntddk.h
===================================================================
--- include/ddk/ntddk.h	(revision 66661)
+++ include/ddk/ntddk.h	(working copy)
@@ -1939,6 +1939,12 @@
  *                              Kernel Types                                  *
  ******************************************************************************/
 
+typedef struct _EXCEPTION_REGISTRATION_RECORD
+{
+  struct _EXCEPTION_REGISTRATION_RECORD *Next;
+  PEXCEPTION_ROUTINE Handler;
+} EXCEPTION_REGISTRATION_RECORD, *PEXCEPTION_REGISTRATION_RECORD;
+
 typedef struct _NT_TIB {
   struct _EXCEPTION_REGISTRATION_RECORD *ExceptionList;
   PVOID StackBase;
Index: ndk/halfuncs.h
===================================================================
--- include/ndk/halfuncs.h	(revision 66661)
+++ include/ndk/halfuncs.h	(working copy)
@@ -52,16 +52,6 @@
 #define KdUnmapVirtualAddress           HALPRIVATEDISPATCH->KdUnmapVirtualAddress
 
 //
-// The DDK steals these away from you.
-//
-#ifdef _MSC_VER
-void __cdecl _enable(void);
-void __cdecl _disable(void);
-#pragma intrinsic(_enable)
-#pragma intrinsic(_disable)
-#endif
-
-//
 // Display Functions
 //
 NTHALAPI
Index: ndk/ketypes.h
===================================================================
--- include/ndk/ketypes.h	(revision 66661)
+++ include/ndk/ketypes.h	(working copy)
@@ -538,6 +538,26 @@
     PVOID StartContext
 );
 
+#ifndef _NTSYSTEM_
+typedef VOID
+(NTAPI *PKNORMAL_ROUTINE)(
+  IN PVOID NormalContext OPTIONAL,
+  IN PVOID SystemArgument1 OPTIONAL,
+  IN PVOID SystemArgument2 OPTIONAL);
+
+typedef VOID
+(NTAPI *PKRUNDOWN_ROUTINE)(
+  IN struct _KAPC *Apc);
+
+typedef VOID
+(NTAPI *PKKERNEL_ROUTINE)(
+  IN struct _KAPC *Apc,
+  IN OUT PKNORMAL_ROUTINE *NormalRoutine OPTIONAL,
+  IN OUT PVOID *NormalContext OPTIONAL,
+  IN OUT PVOID *SystemArgument1 OPTIONAL,
+  IN OUT PVOID *SystemArgument2 OPTIONAL);
+#endif
+
 //
 // APC Environment Types
 //
Index: ndk/rtltypes.h
===================================================================
--- include/ndk/rtltypes.h	(revision 66661)
+++ include/ndk/rtltypes.h	(working copy)
@@ -850,11 +850,6 @@
 } TIME_FIELDS, *PTIME_FIELDS;
 
 //
-// Activation Context
-//
-typedef PVOID PACTIVATION_CONTEXT;
-
-//
 // Activation Context Frame
 //
 typedef struct _RTL_ACTIVATION_CONTEXT_STACK_FRAME
@@ -1199,6 +1194,7 @@
     PRTL_HANDLE_TABLE_ENTRY MaxReservedHandles;
 } RTL_HANDLE_TABLE, *PRTL_HANDLE_TABLE;
 
+#ifdef NTOS_MODE_USER
 //
 // Exception Record
 //
@@ -1207,6 +1203,7 @@
     struct _EXCEPTION_REGISTRATION_RECORD *Next;
     PEXCEPTION_ROUTINE Handler;
 } EXCEPTION_REGISTRATION_RECORD, *PEXCEPTION_REGISTRATION_RECORD;
+#endif /* NTOS_MODE_USER */
 
 //
 // Current Directory Structures
Index: xdk/ketypes.h
===================================================================
--- include/xdk/ketypes.h	(revision 66661)
+++ include/xdk/ketypes.h	(working copy)
@@ -476,6 +476,7 @@
   KD_OPTION_SET_BLOCK_ENABLE,
 } KD_OPTION;
 
+#ifdef _NTSYSTEM_
 typedef VOID
 (NTAPI *PKNORMAL_ROUTINE)(
   IN PVOID NormalContext OPTIONAL,
@@ -493,6 +494,7 @@
   IN OUT PVOID *NormalContext OPTIONAL,
   IN OUT PVOID *SystemArgument1 OPTIONAL,
   IN OUT PVOID *SystemArgument2 OPTIONAL);
+#endif
 
 typedef struct _KAPC {
   UCHAR Type;
@@ -502,9 +504,13 @@
   ULONG SpareLong0;
   struct _KTHREAD *Thread;
   LIST_ENTRY ApcListEntry;
+#ifdef _NTSYSTEM_
   PKKERNEL_ROUTINE KernelRoutine;
   PKRUNDOWN_ROUTINE RundownRoutine;
   PKNORMAL_ROUTINE NormalRoutine;
+#else
+  PVOID Reserved[3];
+#endif
   PVOID NormalContext;
   PVOID SystemArgument1;
   PVOID SystemArgument2;
@@ -993,6 +999,12 @@
 $endif (_WDMDDK_)
 $if (_NTDDK_)
 
+typedef struct _EXCEPTION_REGISTRATION_RECORD
+{
+  struct _EXCEPTION_REGISTRATION_RECORD *Next;
+  PEXCEPTION_ROUTINE Handler;
+} EXCEPTION_REGISTRATION_RECORD, *PEXCEPTION_REGISTRATION_RECORD;
+
 typedef struct _NT_TIB {
   struct _EXCEPTION_REGISTRATION_RECORD *ExceptionList;
   PVOID StackBase;