How To Install a msi/exe with powershell

Today I had to programitacally install a .msi and .exe at the start up of an EC2 instance. By default all them code that needs to be executed during a start up is added to the user data of the EC2 instance.

Bellow was the code used to install the msi and exe
start-process c:\setup\<>.msi /gn -wait

However executing the exe required some effort as it needed special switchers
start-process c:\setup\psqlodbc-setup.exe /install /quiet /norestart -wait -passthorugh

found the extra switcher doing this

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