How to do these permission granting commands in Windows Explorer?

In this tutorial, I found the following commands.

ICACLS "%SystemDrive%\Windows\System32\inetsrv\config" /Grant "Network Service":R /T
ICACLS "%SystemDrive%\Windows\System32\inetsrv\config\administration.config" /Grant "Network Service":R
ICACLS "%SystemDrive%\Windows\System32\inetsrv\config\redirection.config" /Grant "Network Service":R

1. 开发者_JAVA技巧How to do these using Windows Explorer?
2. What does the /T mean?

ICACLS is a command line tool. You need to use the comand line.

/T performs the operation on all specified files in the current directory and its subdirectories. http://msdn.microsoft.com/library/cc753525(v=WS.10).aspx