--- mstools/h/dos.h	2018/08/09 18:21:09	1.1.1.3
+++ mstools/h/dos.h	2018/08/09 18:23:05	1.1.1.4
@@ -1,7 +1,7 @@
 /***
 *dos.h - definitions for MS-DOS interface routines
 *
-*	Copyright (c) 1985-1992, Microsoft Corporation. All rights reserved.
+*	Copyright (c) 1985-1993, Microsoft Corporation. All rights reserved.
 *
 *Purpose:
 *	Defines the structs and unions used for the direct DOS interface
@@ -30,15 +30,6 @@ extern "C" {
 #define _CRTAPI1 __cdecl
 #define _CRTAPI2 __cdecl
 
-#elif ( _MSC_VER == 600 )
-
-/*
- * Definitions for old MS C6-386 compiler
- */
-#define _CRTAPI1 _cdecl
-#define _CRTAPI2 _cdecl
-#define _M_IX86  300
-
 #else
 
 /*