把下面的加到path系统环境变量里面。
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;C:\WINDOWS\system32;C:\WINDOWS;C:\WINDOWS\System32\Wbem;