The Windows headers don't define PEXCEPTION_REGISTRATION_RECORD.

dlls/msvcrt/except.c

@@ -123,7 +123,7 @@ __ASM_GLOBAL_FUNC(_EH_prolog,
 /*******************************************************************
  *		_global_unwind2 (MSVCRT.@)
  */
-void _global_unwind2(PEXCEPTION_REGISTRATION_RECORD frame)
+void _global_unwind2(EXCEPTION_REGISTRATION_RECORD* frame)
 {
     TRACE("(%p)\n",frame);
     RtlUnwind( frame, 0, 0, 0 );
@@ -165,9 +165,9 @@ void _local_unwind2(MSVCRT_EXCEPTION_FRAME* frame, int trylevel)
  *		_except_handler2 (MSVCRT.@)
  */
 int _except_handler2(PEXCEPTION_RECORD rec,
-                     PEXCEPTION_REGISTRATION_RECORD frame,
+                     EXCEPTION_REGISTRATION_RECORD* frame,
                      PCONTEXT context,
-                     PEXCEPTION_REGISTRATION_RECORD* dispatcher)
+                     EXCEPTION_REGISTRATION_RECORD** dispatcher)
 {
   FIXME("exception %lx flags=%lx at %p handler=%p %p %p stub\n",
         rec->ExceptionCode, rec->ExceptionFlags, rec->ExceptionAddress,
@@ -227,7 +227,7 @@ int _except_handler3(PEXCEPTION_RECORD rec,
         if (retval == EXCEPTION_EXECUTE_HANDLER)
         {
           /* Unwind all higher frames, this one will handle the exception */
-          _global_unwind2((PEXCEPTION_REGISTRATION_RECORD)frame);
+          _global_unwind2((EXCEPTION_REGISTRATION_RECORD*)frame);
           _local_unwind2(frame, trylevel);
 
           /* Set our trylevel to the enclosing block, and call the __finally

dlls/ntdll/tests/generated.c

@@ -1073,13 +1073,6 @@ static void test_pack_PEXCEPTION_RECORD(void)
     TEST_TYPE_POINTER(PEXCEPTION_RECORD, 80, 4);
 }
 
-static void test_pack_PEXCEPTION_REGISTRATION_RECORD(void)
-{
-    /* PEXCEPTION_REGISTRATION_RECORD */
-    TEST_TYPE(PEXCEPTION_REGISTRATION_RECORD, 4, 4);
-    TEST_TYPE_POINTER(PEXCEPTION_REGISTRATION_RECORD, 8, 4);
-}
-
 static void test_pack_PFLOATING_SAVE_AREA(void)
 {
     /* PFLOATING_SAVE_AREA */
@@ -2194,7 +2187,6 @@ static void test_pack(void)
     test_pack_PEXCEPTION_HANDLER();
     test_pack_PEXCEPTION_POINTERS();
     test_pack_PEXCEPTION_RECORD();
-    test_pack_PEXCEPTION_REGISTRATION_RECORD();
     test_pack_PFLOATING_SAVE_AREA();
     test_pack_PGENERIC_MAPPING();
     test_pack_PHANDLE();

tools/winapi/tests.dat

@@ -768,7 +768,6 @@ PEXCEPTION_FRAME
 PEXCEPTION_HANDLER
 PEXCEPTION_POINTERS
 PEXCEPTION_RECORD
-PEXCEPTION_REGISTRATION_RECORD
 PFLOATING_SAVE_AREA
 !PFPO_DATA
 PGENERIC_MAPPING