将以下命令存为bat运行，直接就可以运行 cl 了
@set PATH=D:\Program Files\Microsoft Visual Studio 8\Common7\IDE;D:\Program Files\Microsoft Visual Studio 8\VC\BIN;D:\Program Files\Microsoft Visual Studio 8\Common7\Tools;D:\Program Files\Microsoft Visual Studio 8\Common7\Tools\bin;D:\Program Files\Microsoft Visual Studio 8\VC\PlatformSDK\bin;D:\Program Files\Microsoft Visual Studio 8\SDK\v2.0\bin;C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727;D:\Program Files\Microsoft Visual Studio 8\VC\VCPackages;%PATH%
@set INCLUDE=D:\Program Files\Microsoft Visual Studio 8\VC\ATLMFC\INCLUDE;D:\Program Files\Microsoft Visual Studio 8\VC\INCLUDE;D:\Program Files\Microsoft Visual Studio 8\VC\PlatformSDK\include;D:\Program Files\Microsoft Visual Studio 8\SDK\v2.0\include;%INCLUDE%
@set LIB=D:\Program Files\Microsoft Visual Studio 8\VC\ATLMFC\LIB;D:\Program Files\Microsoft Visual Studio 8\VC\LIB;D:\Program Files\Microsoft Visual Studio 8\VC\PlatformSDK\lib;D:\Program Files\Microsoft Visual Studio 8\SDK\v2.0\lib;%LIB%
@set LIBPATH=C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727;D:\Program Files\Microsoft Visual Studio 8\VC\ATLMFC\LIB