

The equivalent Windows Installer command-line option is /qn. If no reboot option is specified, the installer restarts the computer whenever necessary without displaying any prompt or warning to the user. Use the /norestart or /forcerestart standard command-line options to control reboots. No prompts, messages, or dialog boxes display to the user. The installer runs an installation without displaying a user interface. The equivalent Windows Installer command-line option is /?.

Incorrect use of any other option invokes this help option. You can display the usage descriptions in the user interface. Displays the correct usage of the msiexec command, including a list of all switches and behavior. This article lists the Windows Installer command-line option that corresponds to each Standard Installer option. The Windows Installer command-line options are available with Windows Installer 3.0 and earlier. The Msiexec command-line options are available beginning with Windows Installer 3.0.
