How to silent uninstall the 'Quest Installer' program that manages many Quest product installs? (4296232)

How to silent uninstall the 'Quest Installer' program that manages many Quest product installs?

How to silently un-install the 'Quest Installer' program that manages many Quest product installations?

The 'Quest Installer' (QI) application is not an MSI file and does not support Silent Uninstall.  Command line paramater switches like /q and /qn will have no effect on it.

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However, if you are looking for the command line to run the Uninstall.exe for QI, see below: Note: Using the /q and /qn switches has no effect on it i.e. it still prompts for user interaction. "C:\Program Files (x86)\Quest Software\Quest Installer\uninstall.exe" /q "C:\Program Files (x86)\Quest Software\Quest Installer\uninstall.exe" /qn NOTE: ensure all Quest products are completely uninstalled i.e. all Toad Products, Spotlight, SQL Navigator, Code Tester, Space Manager, etc. or else QI cannot be un-installed.