What is the command to put the server into install mode?

A method to control the process to put the server into install mode from the command prompt:
1. Open a command window (Start - Run - cmd)
2. Type "change logon /disable" (without the quotes) to disallow new connections to the server
3. Use Terminal Services Manager to verify that there are no user sessions; send a message to connected users, requesting them to log off
4. Type "change user /install" (without the quotes) to put the server into install mode
5. Install your application
6. When the installation is completely finished, type "change user /execute" to put the server back into it's normal execute mode
7. Type "change logon /enable" to allow users to connect again