The pathname an application uses to open a device handle begins with the prefix \\.\ rather than with a standard Universal Naming Convention (UNC) name such as C:\MYFILE.

• 一个应用用来打开一个设备操作的路径名称开始于前缀\\\\.；\\，而不是用一个标准的通用命名标准（UNC）名称，比如：C:\\MYFILE