Currently, there's no built-in way to tell the compiler, that you want to build a silent setup, so we need to workaround this by re-running the setup with the /SILENT command line parameter when the setup is being initialized. For instance this way: setup.exe /SILENTĪfter we clarified your requirement in comments I see, that you actually want to build a setup, which will run in silent mode without the mentioned command line parameter. In case of not setting ShowPrompt option, then the app will be updated silently. Ninite is Smart Ninite automatically installs apps in your PCs language and picks the right 32 or 64-bit version. People trust Ninite to install and update about a million apps each day. In case of setting ShowPrompt option, then progress Window will appear, but confirm dialog will not be displayed. Install or update 7-Zip Notepad++ silently and unattended in the background. Proper way to run the setup in silent mode is, and always be executing it with /SILENT command line parameter. After the method is called, when the next launching, if there is an update, then the app will be updated.

Silent auto update notepad++