在msdn中，搜索标题Building SDK Samples，在此页中有如下部分内容
Build an SDK Sample from the Command Line
Each SDK sample comes with a MAKEFILE. MAKEFILEs are designed to run at the command prompt. See Open an SDK Sample Within Visual C++ for information on how to build a project's MAKEFILE from the development environment.
To build a sample from a command line in a command prompt window
1 Run the Vcvars32.bat file that Visual C++ installs at Microsoft Visual Studio/VC98/bin.
2 Change to the subdirectory that contains the MAKEFILE.
3 Make sure all existing files that the MAKEFILE will write to are writeable. Use attrib -r *.* to make all files writeable.
4 Issue the nmake command. NMAKE will look in the current directory and execute the MAKEFILE
1 2 3 都看懂了，就4看不懂，还有此NMAKE是不是在dos下执行，若在windows下该如何