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Theme: Solve the problem of missing "intrin.h" in WDK7. Thema: Lösen das Problem des fehlenden "intrin.h" in WDK7. WDK7有个奇怪的BUG，如果在C语言的驱动程序里调用__readmsr，则毫无问题，但如果在C++语言的驱动程序里调用__readmsr，则在编译时报错。 __readmsr之类的“指令函数”（把汇编指令封装成的C风格函数）都在intrin.h里，但WDK7的CRT库里没有intrin.h。 如果直接从VS2010的CRT库里把这个文件复制过去，你会发现编译时报告的错误更多了。
解决方案是要魔改VS2010的intrin.h。
/***
* intrin.h - declarations/definitions for platform specific intrinsic functions. *
* Copyright (c) Microsoft Corporation. All rights reserved. Modified by M5HOME.
*
*Purpose:
* This include file contains the declarations for platform specific intrinsic
* functions, or will include other files that have declaration of intrinsic
* functions. Also there will be some platform specific macros to be used with
* intrinsic functions.
*Usage:
* Copy this file to "C:\WinDDK\7600.16385.1\inc\crt" or your project directory.
* You can add more function declarations above the second "#if defined(__cplusplus)".
*
****/
#pragma once
#define __INTRIN_H_
#ifndef RC_INVOKED
#ifndef __midl
#if defined(__cplusplus)
extern "C"
{
#endif
/*
** __MACHINE : everything
** __MACHINEX86 : x86 only
** __MACHINEX64 : x64 only
** __MACHINEX86_X64 : x86 and x64 only
*/
#define __MACHINEX86 __MACHINE
#define __MACHINEX64 __MACHINE
#define __MACHINEX86_X64 __MACHINE
/*
Most intrinsics not available to pure managed code
*/
#if defined(_M_CEE_PURE)
#define __MACHINE(X) __MACHINEZ(X)
#define __MACHINEWVMPURE(X) X;
#else #define __MACHINE(X) X;
#define __MACHINEWVMPURE(X) __MACHINEZ(X)
#endif #define __MACHINEZ(X)
/* NOTHING */
#if !defined(_M_IX86)
#undef __MACHINEX86
#define __MACHINEX86 __MACHINEZ
#endif
#if !defined(_M_X64)
#undef __MACHINEX64
#define __MACHINEX64 __MACHINEZ
#endif
#if !(defined(_M_IX86) || defined(_M_X64))
#undef __MACHINEX86_X64
#define __MACHINEX86_X64 __MACHINEZ
#endif __MACHINEX86_X64(void __invlpg(void*)) __MACHINE(void * _AddressOfReturnAddress(void)) __MACHINEX64(unsigned __int64 __readmsr(unsigned long))
#if defined(__cplusplus) }
#endif
#endif
#endif