InstallShield DevStudio » FAQ » Deployment
The command msiexec /i Product.msi /qn runs an MSI package in silent mode. If your release settings include Setup.exe, users can run the command Setup.exe /s /v"/qn".
Basic MSI projects do not create or read response files. To set installation properties for a Basic MSI project, run a command line such as:
msiexec /i Product.msi /qn INSTALLDIR=D:\ProductFolder USERNAME="Valued Customer".

Running an InstallScript MSI project installation in silent mode requires two steps:
See Also
MsiExec.exe Command-Line Parameters
Setup.exe Command-Line Parameters