Implemented Add/RemoveVectoredExceptionHandler.

diff --git a/include/winnt.h b/include/winnt.h
index c8da36e..9f3950b 100644
--- a/include/winnt.h
+++ b/include/winnt.h
@@ -1633,6 +1633,7 @@
  * function pointer to a exception filter
  */
 
+typedef LONG (CALLBACK *PVECTORED_EXCEPTION_HANDLER)(PEXCEPTION_POINTERS ExceptionInfo);
 typedef LONG (CALLBACK *PTOP_LEVEL_EXCEPTION_FILTER)(PEXCEPTION_POINTERS ExceptionInfo);
 typedef PTOP_LEVEL_EXCEPTION_FILTER LPTOP_LEVEL_EXCEPTION_FILTER;