error:Task failed because "AL.exe" was not found 的解决方法

使用vs2008编译一个项目时遇到错误， Task failed because "AL.exe" was not found
解决方法如下：
First of all you need to find the path of AL.exe on your machine, AL.exe should be there when you install Windows SDK.

Go to: Start -> Programs -> Microsoft Visual Studio 2008 -> Visual Studio Tools -> Visual Studio 2008 Command Prompt

Type the following command: Where al.exe

The above command shall give you the path to the AL.exe on your machine.

Now go to Control Panel -> System -> Advanced System Settings -> Environment Variables

Add a new variable with the following info:

Key Name: ALTOOLPATH

Key Value: {Path to AL.exe you got above EX: "C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\"}