``````Windows searches for libraries in the following sequence:

The directory where the executable module for the current process is located.
* The current directory.
* The Windows system directory.
* The Windows directory. The GetWindowsDirectory function retrieves the path of this directory.
* The directories listed in the PATH environment variable.
``````

1.找可执行文件所在目录
2.找执行目录
3.`GetSystemDirectory`返回的目录
4.环境变量里面定义的路径

-)